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Conjoint Associate Professor Robin Offler

Conjoint Associate Professor

School of Environmental and Life Sciences (Earth Sciences)

Career Summary

Biography

Research Expertise
Low grade metamorphism. Determination of the tectonic setting of ultramafic and mafic igneous rocks in orogenic belts. Determination of tectonothermal history of orogenic belts . Dating of brittle deformation events.

Teaching Expertise
Retired - not applicable.

Administrative Expertise
Retired - not applicable.

Qualifications

  • PhD, University of Adelaide
  • Bachelor of Science, University of Adelaide

Keywords

  • K-Ar dating of fault gouge
  • Tectonic setting of mafic rocks
  • retired
  • tectonothermal history of low grade metamorhic terrains

Languages

  • English (Fluent)

Fields of Research

Code Description Percentage
040312 Structural Geology 85
040699 Physical Geography and Environmental Geoscience not elsewhere classified 15
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Publications

For publications that are currently unpublished or in-press, details are shown in italics.


Journal article (65 outputs)

Year Citation Altmetrics Link
2015 Stokes N, Fergusson CL, Offler R, 'Backarc basin and ocean island basalts in the Narooma Accretionary Complex, Australia: setting, geochemistry and tectonics', AUSTRALIAN JOURNAL OF EARTH SCIENCES, 62 37-53 (2015)
DOI 10.1080/08120099.2015.985715
2015 Stokes N, Fergusson CL, Offler R, 'Backarc basin and ocean island basalts in the Narooma Accretionary Complex, Australia: setting, geochemistry and tectonics', Australian Journal of Earth Sciences, 62 37-53 (2015)

The Cambrian¿Ordovician Wagonga Group contains basalts at Melville Point and Barlings Beach, 20¿km south of Batemans Bay, New South Wales. At Melville Point, the succession has ... [more]

The Cambrian¿Ordovician Wagonga Group contains basalts at Melville Point and Barlings Beach, 20¿km south of Batemans Bay, New South Wales. At Melville Point, the succession has basal altered basalts overlain by chert and interbedded siliceous mudstone of the Wagonga Group, in turn overlain by turbidites and chert of the Adaminaby Group with a latest Cambrian to earliest Ordovician age. By contrast, at Barlings Beach, basalt is associated with highly disrupted chert (tectonic mélange), various slivers of mudstone and turbidites, and turbidites of the Adaminaby Group. Immobile elements in the basalts show consistent patterns that allow the magmatic affinity and tectonic setting to be determined in spite of pervasive hydrothermal alteration and subsequent lower greenschist facies metamorphism that accompanied strong folding and multiple foliation development. The Melville Point basalts show Ti/V ratios transitional between arc and MORB and therefore may have formed in either a forearc or backarc basin setting. However, these rocks have higher Ti/V ratios, LREE, Th and Nb than found in forearc basalts and are therefore considered to have formed in a backarc basin setting. In contrast to Melville Point, most basalts at Barlings Beach have a geochemical signature distinctive of ocean island settings like those reported from elsewhere in the Wagonga Group. We believe these rocks developed in a Cambrian backarc basin setting. In the Early to Middle Ordovician, much of the ocean basin was inundated by quartzose turbidites followed by basin destruction with accretion/underplating at a Late Ordovician¿early Silurian Benambran subduction zone and formation of the Narooma Accretionary Complex.

DOI 10.1080/08120099.2015.985715
2015 Offler R, Lennox PG, Phillips G, Yan J, 'Comment on: "Does the Manning Orocline exist? New structural evidence from the inner hinge of the Manning Orocline (eastern Australia)" by Li and Rosenbaum (2013). Gondwana Research', Gondwana Research, 27 1686-1688 (2015)
DOI 10.1016/j.gr.2014.03.003
Citations Scopus - 1
2014 Och DJ, Offler R, Zwingmann H, 'Constraining timing of brittle deformation and fault gouge formation in the Sydney Basin', Australian Journal of Earth Sciences, 61 337-350 (2014) [C1]

Structural and K-Ar dating studies of gouge in N-S, NNE and E-W-trending faults in four locations in the Sydney-Hunter region are reported. The fault zones are manifest as joint s... [more]

Structural and K-Ar dating studies of gouge in N-S, NNE and E-W-trending faults in four locations in the Sydney-Hunter region are reported. The fault zones are manifest as joint swarms and highly brecciated zones containing gouge with authigenic illite produced as a result of fluid infiltration. Strike-slip movement accompanied by minor dip-slip, normal movement occurred on the NNE faults, with dip slip on N-S and E-W-trending faults. In this study, gouge from a NE-trending, steep, SE-dipping fault showing dip-slip movement at Cut 10, on the Hunter Expressway and from an E-W-trending, steep south-dipping, normal fault at the Westside Open Cut, Lake Macquarie have been analysed. K-Ar dating of illite and illite-smectite in fractions extracted from fault gouges in areas unaffected by a thermal overprint reveals ages varying from 166 to 119 Ma for the <2 µm and finer fractions, and a mean age of ca 120 Ma for the <0.4 µm fraction. In the Sydney area and the Westside Open Cut coal mine, Lake Macquarie, the ages obtained from similar size fractions both for the gouge and for the host rocks are younger (134-76 Ma; av. <0.4 µm = 111 Ma). The data indicate influence of a thermal overprint associated with subsurface magmas emplaced during the early stages of the rifting of eastern Gondwana during the early Cretaceous. © 2014 © 2014 Geological Society of Australia.

DOI 10.1080/08120099.2014.906503
Citations Scopus - 3Web of Science - 3
2014 Offler R, Lennox PG, Phillips G, Yan J, 'Comment on: "Does the Manning Orocline exist? New structural evidence from the inner hinge of the Manning Orocline (eastern Australia)" by Li and Rosenbaum (2013). Gondwana Research', Gondwana Research, (2014)
DOI 10.1016/j.gr.2014.03.003
Citations Web of Science - 2
2013 Lennox PG, Offler R, Yan J, 'Discussion of Glen R.A. and Roberts J. 2012: Formation of Oroclines in the New England Orogen, Eastern Australia. In: Oroclines (Eds.) Stephen Johnston and Gideon Rosenbaum, Journal of the Virtual Explorer, volume 43, paper 3.', Journal of the Virtual Explorer, 44 1-10 (2013) [C1]
2012 Prendergast EI, Offler R, 'Underplated seamount in the Narooma accretionary complex, NSW, Australia', Lithos, 154 224-234 (2012) [C1]
DOI 10.1016/j.lithos.2012.07.010
Citations Scopus - 8Web of Science - 7
2012 Prendergast EI, Offler R, Zwingmann H, 'Adaminaby Group west of Batemans Bay: Deformation and metamorphism of the Narooma accretionary complex, NSW', Australian Journal of Earth Sciences, 29 1049-1066 (2012) [C1]
DOI 10.1080/08120099.2012.718719
Citations Scopus - 3Web of Science - 3
2011 Offler R, Phillips G, Fergusson CL, Green TJ, 'Tectonic implications of early paleozoic metamorphism in the Anakie Inlier, Central Queensland, Australia', Journal of Geology, 119 467-485 (2011) [C1]
Citations Scopus - 2Web of Science - 3
2011 Prendergast EI, Offler R, Phillips D, Zwingmann H, '40Ar/39Ar and K-Ar ages: Early paleozoic metamorphism and deformation in the Narooma accretionary complex, NSW', Australian Journal of Earth Sciences, 58 21-32 (2011) [C1]
DOI 10.1080/08120099.2011.534506
Citations Scopus - 6Web of Science - 6
2011 Phillips G, Offler R, 'Contrasting modes of eclogite and blueschist exhumation in a retreating subduction system: The Tasmanides, Australia', Gondwana Research, 19 800-811 (2011) [C1]
DOI 10.1016/j.gr.2010.07.009
Citations Scopus - 9Web of Science - 8
2011 Offler R, Murray C, 'Devonian volcanics in the New England Orogen: Tectonic setting and polarity', Gondwana Research, 19 706-715 (2011) [C1]
DOI 10.1016/j.gr.2010.11.003
Citations Scopus - 6Web of Science - 6
2010 Phillips G, Hand M, Offler R, 'P-T-X controls on phase stability and composition in LTMP metabasite rocks - A thermodynamic evaluation', Journal of Metamorphic Geology, 28 459-476 (2010) [C1]
DOI 10.1111/j.1525-1314.2010.00874.x
Citations Scopus - 5Web of Science - 3
2009 Turner S, Haines P, Foster D, Powell R, Sandiford M, Offler R, 'Did the Delamerian Orogeny start in the Neoproterozoic?', Journal of Geology, 117 575-583 (2009) [C1]
DOI 10.1086/600866
Citations Scopus - 13Web of Science - 12
2009 Fergusson CL, Offler R, Green TJ, 'Late Neoproterozoic passive margin of East Gondwana: Geochemical constraints from the Anakie Inlier, central Queensland, Australia', Precambrian Research, 168 301-312 (2009) [C1]
DOI 10.1016/j.precamres.2008.10.007
Citations Scopus - 13Web of Science - 13
2009 Lennox PG, Offler R, 'Kinematic history of serpentinites in the faulted margins of the Hastings Block, New England Orogen, eastern Australia', Australian Journal of Earth Sciences, 56 621-638 (2009) [C1]
DOI 10.1080/08120090902825784
Citations Scopus - 4Web of Science - 2
2009 Och DJ, Offler R, Zwingmann H, Braybrooke J, Graham IT, 'Timing of brittle faulting and thermal events, Sydney region: Association with the early stages of extension of East Gondwana', Australian Journal of Earth Sciences, 56 873-887 (2009) [C1]
DOI 10.1080/08120090903005345
Citations Scopus - 6Web of Science - 4
2009 Offler R, Och DJ, Phelan D, Zwingmann H, 'Mineralogy of gouge in north-northeast-striking faults, Sydney region, New South Wales', Australian Journal of Earth Sciences, 56 889-905 (2009) [C1]
DOI 10.1080/08120090903005352
Citations Scopus - 2Web of Science - 2
2008 Phillips G, Hand M, Offler R, 'P-T-t-deformation framework of an accretionary prism, southern New England Orogen, eastern Australia: Implications for blueschist exhumation and metamorphic switching', Tectonics, 27 1-15 (2008) [C1]
DOI 10.1029/2008tc002323
Citations Scopus - 14Web of Science - 8
2008 Offler R, Foster DA, 'Timing and development of oroclines in the southern New England Orogen, New South Wales', Australian Journal of Earth Sciences, 55 331-340 (2008) [C1]
DOI 10.1080/08120090701769464
Citations Scopus - 25Web of Science - 22
2006 Offler R, Shaw S, 'Hornblende gabbro block in serpentinite Melange, Peel-Manning Fault System, new South Wales, Australia: Lu-Hf and U-Pb isotopic evidence for mantle-derived, Late Ordovician igneous activity', Journal of Geology, 114 211-230 (2006) [C1]
DOI 10.1086/499572
Citations Scopus - 5Web of Science - 5
2005 Sakai H, Kikawa E, Offler R, Zwingmann H, 'Paleomagnetic and K-Ar dating studies of Late Cretaceous basaltic dykes intruding Late Permian sediments of Newcastle Coal Measures, Newcastle, Australia - Relationship to the opening of the Tasman Sea', Polar Geoscience, 18 58-66 (2005) [C1]
2004 Zwingmann H, Offler R, Wilson TC, Cox SF, 'K-Ar dating of fault gouge in the northern Sydney Basin, NSW, Australia-implications for the breakup of Gondwana', Journal of Structural Geology, 26 2285-2295 (2004) [C1]
DOI 10.1016/j.jsg.2004.03.007
Citations Scopus - 18Web of Science - 16
2004 Roberts J, Offler R, Fanning M, 'Upper Carboniferous to Lower Permian volcanic successions of the Carroll-Nandewar region, Northern Tamworth Belt, Southern New England Orogen, Australia', Australian Journal of Earth Sciences, 51 205-232 (2004) [C1]
DOI 10.1111/j.1400-0952.2004.01053.x
Citations Scopus - 23Web of Science - 22
2004 Offler R, Glen RA, Hyodo H, Jiang Z, 'Subduction of arc basaltic andesite: implications for the tectonic history of the southern New England Fold Belt', Australian Journal of Earth Sciences, 51 819-830 (2004) [C1]
DOI 10.1111/j.1400-0952.2004.01087.x
2004 Sano S, Offler R, Hyodo H, Watanabe T, 'Geochemistry and Chronology of Tectonic Blocks in Serpentinite Mélange of the Southern New England Fold Belt, NSW, Australia', Gondwana Research, 7 817-831 (2004) [C1]
DOI 10.1016/S1342-937X(05)71066-2
Citations Scopus - 12Web of Science - 12
2002 Offler R, Gamble J, 'Evolution of an intra-oceanic island arc during the late Silurian to late Devonian, New England fold belt', Australian Journal of Earth Sciences, 49 349-366 (2002) [C1]
Citations Scopus - 20Web of Science - 21
2002 Johnston A, Offler R, Liu S, 'Structural fabric evidence for indentation tectonics in the Nambucca block, southern New England fold belt, New South Wales', Australian Journal of Earth Sciences, 49 407-421 (2002) [C1]
Citations Scopus - 10Web of Science - 7
2001 Kramer WA, Weatherall GD, Offler R, 'Origin and correlation of tuffs in the Permian Newcastle and Wollombi coal measures, NSW, Australia, using chemical fingerprinting', International Journal of Coal Geology, 47 115-135 (2001) [C1]
Citations Scopus - 18Web of Science - 16
2000 Seccombe PK, Offler R, Ayshford S, 'Origin of the magnetite skarn at Tallawang, NSW: Preliminary sulfur isotope results', Centre for Isotope Studies - Research Report, 1995-2000, 1995-2000 56-58 (2000) [C1]
1998 Offler R, McKnight S, Morand V, 'Tectonothermal history of the western Lachlan Fold Belt, Australia: insights from white mica studies', Journal of Metamorphic Geology, 16 531-540 (1998) [C1]
Citations Web of Science - 56
1998 Offler R, Miller JM, Gray DR, Forster DA, Bale RJ, 'Crystallinity and bo spacing of K-white micas in a paleozoic Accretionary Complex, Eastern Australia: Metamorphism, Palaeogeotherms, and Structural Style of an Underplated Sequence', The Journal of Geology, 106 495-509 (1998) [C1]
Citations Web of Science - 43
1997 Offler R, O'Hanley DS, Lennox P, 'Tectonic significance of veins and associated structures, Woodsreef, NSW.', Australian Journal of Earth Sciences, 19 226-241 (1997)
1996 Jenkins RB, Offler R, 'Metamorphism and deformation of an Early Permian extensional basin sequence: The Manning Group, southern new England Orogen', AUSTRALIAN JOURNAL OF EARTH SCIENCES, 43 423-435 (1996)
DOI 10.1080/08120099608728265
Citations Scopus - 7Web of Science - 7
1995 Roberts J, Leitch EC, Lennox PG, Offler R, 'Devonian-Carboniferous stratigraphy of the southern Hastings Block, New England Orogen, eastern Australia', AUSTRALIAN JOURNAL OF EARTH SCIENCES, 42 609-633 (1995)
DOI 10.1080/08120099508728229
Citations Web of Science - 18
1995 LANDENBERGER B, FARRELL TR, OFFLER R, COLLINS WJ, WHITFORD DJ, 'TECTONIC IMPLICATIONS OF RB-SR BIOTITE AGES FOR THE HILLGROVE PLUTONIC SUITE, NEW-ENGLAND FOLD BELT, NSW, AUSTRALIA', PRECAMBRIAN RESEARCH, 71 251-263 (1995)
DOI 10.1016/0301-9268(94)00064-X
Citations Scopus - 25Web of Science - 24
Co-authors Bill Landenberger, Bill Collins
1993 DIRKS PHGM, OFFLER R, COLLINS WJ, 'TIMING OF EMPLACEMENT AND DEFORMATION OF THE TIA GRANODIORITE, SOUTHERN NEW-ENGLAND FOLD BELT, NSW - IMPLICATIONS FOR THE METAMORPHIC HISTORY', AUSTRALIAN JOURNAL OF EARTH SCIENCES, 40 103-108 (1993)
DOI 10.1080/08120099308728067
Citations Scopus - 16Web of Science - 17
Co-authors Bill Collins
1992 OHANLEY DS, OFFLER R, 'CHARACTERIZATION OF MULTIPLE SERPENTINIZATION, WOODSREEF, NEW-SOUTH-WALES', CANADIAN MINERALOGIST, 30 1113-1126 (1992)
Citations Web of Science - 17
1992 LITTLE TA, HOLCOMBE RJ, GIBSON GM, OFFLER R, GANS PB, MCWILLIAMS MO, 'EXHUMATION OF LATE PALEOZOIC BLUESCHISTS IN QUEENSLAND, AUSTRALIA, BY EXTENSIONAL FAULTING', GEOLOGY, 20 231-234 (1992)
DOI 10.1130/0091-7613(1992)020<0231:EOLPBI>2.3.CO;2
Citations Web of Science - 32
1992 DIRKS PHGM, HAND M, COLLINS WJ, OFFLER R, 'STRUCTURAL METAMORPHIC EVOLUTION OF THE TIA COMPLEX, NEW-ENGLAND FOLD BELT - THERMAL OVERPRINT OF AN ACCRETION SUBDUCTION COMPLEX IN A COMPRESSIONAL BACK-ARC SETTING', JOURNAL OF STRUCTURAL GEOLOGY, 14 669-688 (1992)
DOI 10.1016/0191-8141(92)90125-G
Citations Scopus - 35Web of Science - 33
Co-authors Bill Collins
1992 OFFLER R, WHITFORD DJ, 'WALL-ROCK ALTERATION AND METAMORPHISM OF A VOLCANIC-HOSTED MASSIVE SULFIDE DEPOSIT AT QUE RIVER - TASMANIA - PETROLOGY AND MINERALOGY', ECONOMIC GEOLOGY AND THE BULLETIN OF THE SOCIETY OF ECONOMIC GEOLOGISTS, 87 686-705 (1992)
Citations Scopus - 19Web of Science - 21
1990 Offler R, Whitford DJ, Andrew AS, Sun S-S, 'A stable isotope study of the alteration zone surrounding the Que River Cu-Pb-Zn deposits, Tasmania. Research Report (1989-1990), Centre for Isotope Studies.', Research Report, Centre for Isotope Studies., 65-67 (1990)
1989 FARRELL TR, OFFLER R, 'GREEN-SCHIST FACIES METAMORPHISM OF A RIFT BASIN SEQUENCE, BREADALBANE, NSW', AUSTRALIAN JOURNAL OF EARTH SCIENCES, 36 337-349 (1989)
DOI 10.1080/08120098908729493
Citations Scopus - 6Web of Science - 5
1987 BAJWAH ZU, SECCOMBE PK, OFFLER R, 'TRACE-ELEMENT DISTRIBUTION, CO-NI RATIOS AND GENESIS OF THE BIG CADIA IRON-COPPER DEPOSIT, NEW-SOUTH-WALES, AUSTRALIA', MINERALIUM DEPOSITA, 22 292-300 (1987)
Citations Scopus - 42Web of Science - 38
1987 Offler R, Hand M, Bale R, 'bo and illite crystallinity studies of K-white micas in rocks from forearc basin and accretionary complex sequences, Southern New England Fold Belt, N.S.W., Australia', Sciences Geologiques - Bulletin, 40 245-254 (1987)

In the Southern New England Fold Belt, N.S.W., Australia, bo studies of K-white micas have shown that the Tamworth Belt and Tablelands Complex contain sequences with distinctive m... [more]

In the Southern New England Fold Belt, N.S.W., Australia, bo studies of K-white micas have shown that the Tamworth Belt and Tablelands Complex contain sequences with distinctive metamorphic imprints. The white micas in the forearc basin sediments of the Tamworth Belt record low pressure conditions, whilst those in the accretionary complex sequences of the Tablelands Complex show an intermediate pressure character. The results are in accord with the plate tectonic models proposed for the Southern New England Fold Belt. Illite crystallinity analyses have revealed that rocks of diagenetic to lower anchimetamorphic grade are developed in the forearc succession and diagenetic to epimetamorphic grade in the accretionary complex, with grade increasing progressively from south to north. They also indicate that the Peel Fault System is not a major zone of thrusting. -Authors

Citations Scopus - 5
1985 OFFLER R, PRENDERGAST E, 'SIGNIFICANCE OF ILLITE CRYSTALLINITY AND B0 VALUES OF K-WHITE MICA IN LOW-GRADE METAMORPHIC ROCKS, NORTH HILL END SYNCLINORIUM, NEW-SOUTH-WALES, AUSTRALIA', MINERALOGICAL MAGAZINE, 49 357-364 (1985)
DOI 10.1180/minmag.1985.049.352.06
Citations Web of Science - 21
1985 PEMBERTON JW, OFFLER R, 'SIGNIFICANCE OF CLINOPYROXENE COMPOSITIONS FROM THE CUDGEGONG VOLCANICS AND TOOLAMANANG VOLCANICS - CUDGEGONG-MUDGEE DISTRICT, NSW, AUSTRALIA', MINERALOGICAL MAGAZINE, 49 591-599 (1985)
DOI 10.1180/minmag.1985.049.353.14
Citations Web of Science - 12
1985 Offler R, Prendergast E, 'Significance of illite crystallinity and bo values of K- white mica in low-grade metamorphic rocks, north Hill End synclinorium, New South Wales, Australia.', Mineralogical Magazine, 49 357-364 (1985)

For 80 slates and phyllites of late Silurian-early Carboniferous age in this area in the NE portion of the Lachlan fold belt, W of Sydney, illite crystallinity values vary from 0.... [more]

For 80 slates and phyllites of late Silurian-early Carboniferous age in this area in the NE portion of the Lachlan fold belt, W of Sydney, illite crystallinity values vary from 0.40 DELTA o 2theta (CuKalpha ) on the Molong anticlinorium to 0.12 DELTA o 2theta within the axis of the synclinorium, suggesting anchizonal to epizonal metamorphic conditions. This is in agreement with previous observations of a change from prehnite-pumpellyite facies (in the anticlinoria adjacent to the synclinorium) to middle greenschist facies in the axis (M.A. 69-2599). The mean b value from the pelitic rocks is 9.017 A, in close agreement with that for the adjacent Capertree anticlinorium. Statistical tests indicate two b populations in the Hill End synclinorium (9.010 and 9.022 A) with the lower values concentrated in the S portion of the structure; the higher geothermal gradient indicated by the lower b values is attributed to the presence of granitic intrusions at shallower depths than elsewhere in the synclinorium.-R.A.H.

Citations Scopus - 19
1984 Seccombe PK, Lau JL, Lea JF, Offler R, 'Geology and ore genesis of silver-lead-zinc-copper sulphide deposits, Sunny Corner, NSW.', Proceedings of the Australasian Institute of Mining & Metallurgy, 289 51-57 (1984)

The stratiform and vein-type pyritic Ag-Pb-Zn-Cu sulphide deposits of Sunny Corner, NSW, are hosted by acid volcanic and clastic sedimentary rocks of Middle Silurian to early Devo... [more]

The stratiform and vein-type pyritic Ag-Pb-Zn-Cu sulphide deposits of Sunny Corner, NSW, are hosted by acid volcanic and clastic sedimentary rocks of Middle Silurian to early Devonian age. The rocks have been subjected to low-grade regional metamorphism (prehnite-pumpellyite facies) and three phases of folding and four faulting events are recognized. Pyrite is intensely fractured, indicating brittle deformation. Chalcopyrite and galena exhibit deformation twins and slip planes indicating ductile deformation; sphalerite and chalcopyrite show straight and curved grain boundaries and dihedral angles of 120o as evidence of annealing recrystallization. Sulphur isotope ratios for 22 samples from five deposits range from 1.7 to 10.7per mille and average 7.4per mille. Sulphur isotope data are similar to those from other stratiform sulphide deposits in acid volcanic rocks of late Silurian age in the E Lachlan Fold Belt, especially Woodlawn and Captains Flat, and together with other features of the mineralization, suggest a volcanic exhalative origin for the Sunny Corner deposits.-H.K.H.

Citations Scopus - 7
1984 OFFLER R, 'SUBCALCIC, FE-RICH AMPHIBOLES IN META-DOLERITES, GLENROCK-STATION, NSW, AUSTRALIA', MINERALOGICAL MAGAZINE, 48 47-52 (1984)
DOI 10.1180/minmag.1984.048.346.07
Citations Web of Science - 4
1984 Offler R, 'Subcalcic, Fe-rich amphiboles in meta-dolerites, Glenrock Station, NSW, Australia.', Mineralogical Magazine, 48 47-52 (1984)

Sub-greenschist-facies metamorphism has produced unusual Fe-rich, actinolitic amphiboles in metadolerites in this area approx 300 km N of Sydney. Microprobe analyses show edenite,... [more]

Sub-greenschist-facies metamorphism has produced unusual Fe-rich, actinolitic amphiboles in metadolerites in this area approx 300 km N of Sydney. Microprobe analyses show edenite, riebeckite, ferritschermakite and Ti-tschermakite coupled substitutions. Their high Fe content is attributed to high aFe2+ and aFe3+ in the fluid phase produced during the breakdown of clinopyroxene, hornblende, magnetite and ilmenite; the high aFe2+ led to Fe2+ occupying the B site, resulting in production of sub-calcic amphiboles.-R.A.H.

Citations Scopus - 3
1984 OFFLER R, AGUIRRE L, 'MINERAL CHEMISTRY OF LOW-GRADE METAMORPHIC ROCKS, WESTERN ANDES, PERU', NEUES JAHRBUCH FUR MINERALOGIE-ABHANDLUNGEN, 150 229-246 (1984)
Citations Web of Science - 5
1982 OFFLER R, 'GEOCHEMISTRY AND TECTONIC SETTING OF IGNEOUS ROCKS IN THE GLENROCK STATION AREA, NSW', JOURNAL OF THE GEOLOGICAL SOCIETY OF AUSTRALIA, 29 443-455 (1982)
Citations Scopus - 7Web of Science - 8
1981 OFFLER R, BAKER CK, GAMBLE J, 'PUMPELLYITES IN 2 LOW-GRADE METAMORPHIC TERRANES NORTH OF NEWCASTLE, NEW-SOUTH-WALES AUSTRALIA', CONTRIBUTIONS TO MINERALOGY AND PETROLOGY, 76 171-176 (1981)
DOI 10.1007/BF00371957
Citations Scopus - 13Web of Science - 24
1981 AGUIRRE L, LEVI B, OFFLER R, 'LOW-GRADE BURIAL METAMORPHISM IN THE ANDES', JOURNAL OF THE GEOLOGICAL SOCIETY, 138 633-633 (1981)
1980 OFFLER R, AGUIRRE L, LEVI B, CHILD S, 'BURIAL METAMORPHISM IN ROCKS OF THE WESTERN ANDES OF PERU', LITHOS, 13 31-42 (1980)
DOI 10.1016/0024-4937(80)90059-6
Citations Scopus - 10Web of Science - 15
1979 OFFLER R, 'PYROXENES IN ALTERED VOLCANIC-ROCKS, GLENROCK-STATION, NSW, AUSTRALIA', MINERALOGICAL MAGAZINE, 43 497-503 (1979)
DOI 10.1180/minmag.1979.043.328.09
Citations Web of Science - 7
1978 AGUIRRE L, LEVI B, OFFLER R, 'UNCONFORMITIES AS MINERALOGICAL BREAKS IN BURIAL METAMORPHISM OF ANDES', CONTRIBUTIONS TO MINERALOGY AND PETROLOGY, 66 361-366 (1978)
DOI 10.1007/BF00403420
Citations Scopus - 16Web of Science - 25
1976 Offler R, Diessel C F K, 'The aplication of reflectance determinations on coalified and graphitised plant fragments to metamorphic studies', Journal of the Geological Society of South Australia, 23 293-297 (1976)
1975 Offler R, Offler R, Diessel CFK, 'Change in physical properties of coalified and graphitised phytoclasts with grade of metamorphism', N. Jb. Miner. Mh., 1 11-26 (1975)
1973 DIESSEL CFK, OFFLER R, 'RELATIONSHIP BETWEEN GRAPHITE RANK AND METAMORPHIC GRADE IN MOUNT-LOFTY-RANGES, SOUTH-AUSTRALIA', SEARCH, 4 497-499 (1973)
Citations Web of Science - 3
1973 Offler R, Offler R, 'The relationship between graphite rank and metamorphic grade in the Mt. Lofty Ranges, S. A.', Search, 4 497-499 (1973)
1968 FLEMING PD, OFFLER R, 'PRE-TECTONIC METAMORPHIC CRYSTALLIZATION IN MT LOFTY RANGES SOUTH AUSTRALIA', GEOLOGICAL MAGAZINE, 105 356-& (1968)
Citations Web of Science - 10
1968 Offler R, Fleming P, 'A Synthesis of Folding and Metamorphism in the Mt Lofty Ranges, South Australia. (1968) [C1]
1963 Offler R, Offler R, 'Structural geology of the Strathalbyn Anticline, South Australia', Transactions of the Royal Society of South Australia, 87 199-208 (1963)
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Conference (41 outputs)

Year Citation Altmetrics Link
2015 Offler R, Yan J, Lennox P, Kelly B, 'Kinematic reconstruction of the Hastings Block, Southern New England Orogen, Australia.', none, Perth, Western Australia (2015)
2015 Offler R, Yan J, Lennox P, Kelly B, 'Kinematic reconstruction of the Hastings Block, Southern New England Orogen.', -, Newcastle, NSW (2015)
2014 Collins WJ, Huang H, Offler R, 'LA-ICP-MS Zircon and Titanite U¿Pb dating of the Moonbi granite and the Age of Movement on the Peel-Manning Fault System, Southern New England Orogen', Proceedings of AESC 2014, Newcastle, N.S.W. (2014) [E3]
Co-authors Bill Collins
2014 Offler R, Fergusson C, Prendergast E, Stokes N, 'Geochemistry of metasomatised and subducted mafic rocks in the Narooma Accretionary Complex ¿ clues to their tectonic setting?', AESC Abstract Proceedings, Newcastle, NSW (2014) [E3]
2014 ZWINGMANN H, Offler R, OCH D, 'Dating of shallow brittle faults within the Sydney Basin ¿ new constraints on the break up of Gondwana.', Geological Society of Australia Abstracts No. 110, Newcastle, NSW (2014) [E3]
2013 Offler R, Suzuki S, Matsushita E, Yumul GPJ, Dimalanta CB, Faustino Eslava DB, Queano KL, 'Terrane affiliation and metamorphism of the Halcon Metamorphics, the Philippines.', not published, Brisbane, Queensland (2013)
2012 Yan J, Lennox P, Offler R, 'Does the Manning Orocline exist?', 34 International Geological Congress, Brisbane, Australia (2012) [E3]
2012 Prendergast EI, Offler R, 'Evidence for a subducted seamount, Narooma accretionary complex, NSW, Australia', 34 International Geological Congress, Brisbane, Australia (2012) [E3]
2010 Sutherland FL, Graham IT, Zwingmann H, Jourdan F, Meffre S, Offler R, 'Basalt assault: Dissecting long-term intraplate volcanism along Australia's Indo-Pacific mantle interface', Australian Earth Sciences Convention. Earth Systems: Change Sustainability Vulnerability, Canberra, ACT (2010) [E3]
2010 Fergusson CL, Henderson RA, Offler R, Phillips G, 'Tectonics of the Cambrian-Ordovician Panthalassan Gondwanan margin in the Thomson Fold Belt, central and north Queensland, northeastern Australia', Abstracts of the Specialist Group in Tectonics and Structural Geology Conference, Port Macquarie, February 2010, Port Macquarie, N.S.W. (2010) [E3]
2009 Murray C, Offler R, 'Unravelling the tectonic setting of Devonian sequences in the New England orogen', Abstracts Geological Society of Australia, Orange, NSW (2009) [E3]
2009 Phillips G, Offler R, 'Source and transportation of high-pressure exotic blocks in serpentinite melange, Peel-Manning Fault System, southern New England Fold Belt', Abstracts Geological Society of Australia, Orange, NSW (2009) [E3]
2008 Phillips G, Offler R, Hand M, 'The affect of bulk rock chemistry and fugacity on phase equilibria in low-temperature moderate-high-pressure metamorphic environments', Geophysical Research Abstracts, Vienna, Austria (2008) [E3]
2007 Lennox PG, Offler R, 'Serpentine structures in terraine-bounding faults: A guide to terraine emplacement or not?', Geological Society of Australia. Specialist Group: Tectonics and Structural Geology Conference. Abstracts, Alice Springs, N.T. (2007) [E3]
2005 Offler R, 'Metamorhpism in the southern New England Fold Belt - an overview', Edited volume of Conference Proceedings SGGMP 2005, Port Macquarie, NSW, Australia (2005) [E4]
2005 Offler R, Zwingmann H, Sutherland L, Graham I, 'Significance of orientation, age and geochemical composition of dykes emplaced and during the opening of the Tasman Sea', Edited volume of Conference Proceedings SGGMP 2005, Port Macquarie, NSW, Australia (2005) [E4]
2004 Zwingmann H, Mancktelow N, Offler R, 'Recent developments in brittle fault dating - case studies from the European Alps and Australian sedimentary basins', Geochemical Society of Japan, Shizuoka, Japan (2004) [E3]
2002 Suzuki S, Yumul G, Offler R, 'Development of South China Sea and Philippines Arc', AGU Chapman conference on continent-ocean interactions within the east Asian marginal seas, San Diego, CA, USA (2002) [E3]
2002 Offler R, Glenn R, Hyodo H, 'Subduction of continental arc basaltic andesite - implications for the tectonic history of the Southern New England Fold Belt', Geoscience 2002: Expanding Horizons, Adelaide, SA (2002) [E3]
Citations Scopus - 2Web of Science - 2
2000 Sano S, Offler R, Watanabe T, 'Strontium and Neodymium Isotope Geochemistry of Ophiolitic Rocks in the Peel-Manning Fault System, NSW, Australia', 2000 Western Pacific Geophysics Meeting, Abstract Volume. Supplement of EOS, Transactions, AGU. Vol 81, No. 22., Tokyo, Japan (2000) [E3]
2000 Gray D, Foster DA, Offler R, Spaggiari K, Hartley M, 'Eastern Australia crustal evolution: timing and temporal links between Delamerian and Lachlan Orogens, including Tasmania', Abstracts of the 15th Australian Geological Convention, Sydney, Australia (2000) [E3]
2000 Offler R, Gamble J, 'Change in tectonic setting of volcanics in the New England Fold Belt during the Late Silurian to Late Devonian', Abstracts of the 15th Australian Geological Convention, Sydney, Australia (2000) [E3]
2000 Watanabe T, Kitayama E, Sano S, Offler R, Leitch E, 'The Tasman Fold Belt System in the Late Neoproterozoic: insights from study of Mr Arrowmith Volcanics and Attunga eclogite', Abstracts of the 15th Australian Geological Convention, Sydney, Australia (2000) [E3]
2000 Wilson TC, Offler R, Cox SJ, 'Interpretation of brittle microstructures', Abstracts of the 15th Australian Geological Convention, Sydney, Australia (2000) [E3]
2000 Zwingmann H, Wilson TC, Offler R, 'K-Ar dating of fluid flow and fault movement in clay rich gouge: an example from the northern Sydney Basin', Abstracts of the 15th Australian Geological Convention, Sydney, Location (2000) [E3]
2000 Foster DA, Gray DR, Spaggiari CV, Offler R, Hartley M, 'Eastern Australian record of Gondwana assembly and evolution: the Cambrian Delamerian and Mid-Paleozoic Orogenies', Geological Society of America Annual Meetign, Reno, Nevada. GSA Abstracts with Programs, 2000 V. 32, No. 7., Reno, Nevada, USA (2000) [E3]
1999 Lennox PG, Roberts J, Offler R, 'Structional analysis of the Hastings Terrane', New England Orogen: Regional Geology, Tectonics and Metallogenesis, UNE, Armidale; 1-3 February, 1999 (1999) [E2]
1999 Offler R, 'Origin and significance of blueschist "knockers", Glenrock Station, NSW', New England Orogen: Regional Geology, Tectonics and Metallogensis, UNE, Armidale; 1 - 3 February 1999 (1999) [E2]
1999 Harrington TW, Offler R, 'New insights into the deformation history of the Hunter Coalfield', Proceedings of the 33rd Newcastle Symposium on Advances in the Study of the Sydney Basin, The University of Newcastle (1999) [E2]
1999 Kramer WA, Weatherall GD, Offler R, Wadsworth JA, 'Correlation of Tuffs in the Newcastle and Wollombi Coal Measures based on geochemical fingerprinting', Proceedings of the 33rd Newcastle Symposium on Advances in the Study of the Sydney Basin, The University of Newcastle (1999) [E2]
1999 Wilson TC, Offler R, Cox SF, 'Faulting processes at upper crustal levels; an example from the northern Sydney basin, NSW', The Specialist Group in Tectonics and Structural Geology, Field Conference, Halls Gap, Victoria (1999) [E4]
1999 Offler R, Gray DR, Foster DA, Flottmann T, 'Timing of Deformation, Metamorphism and Fault Movements within the Adelaide Fold Belt: implications for Tasmanide Orogensis', The Specialist Group in Tectonics and Structural Geology, Field Conference, Halls Gap, Victoria (1999) [E4]
1998 Seccombe PK, Offler R, Ayshford S, Downes PM, 'Skarn formation and metamorphism: the Palaeozoic magnetite skarn at Tallawang, NSW, Australia', Annual Meeting of the Geological Association of Canada; Mineralogicak Association of Canada, Abstract Volume, St Johns, Newfoundland, Canada (1998) [E3]
1998 Johnston AJ, Offler R, 'Indenter Tectonics and the Structural fabric of the Nambucca Block, southern New England Fold Belt, NSW', Geoscience for the Millenium, Townsville, July 6-10 1998 (1998) [E3]
1998 Offler R, Forster DA, Gray DR, 'Implications of Argon geochronology/thermochronology and metamorphic white mica studies for Delamerian Orogenesis in the Delamerian Fold Belt, South Australia', Geoscience for the Millenium, Townsville, July 6-10, 1998 (1998) [E3]
1998 Suzuki S, Offler R, David SD, Takemura S, Yumul GP, 'Deformation and metamorphism of the Cretaceous to Eocene successions in Central Palawan, Phillipines', Tectonic Evolution of East Asia, Seoul, Korea (1998) [E3]
1997 Offler R, Roberts J, Lennox P, 'Metamorphism in Palaeozoic forearc basin sequences, southren New England Fold Belt, NSW, Australia.', Proceedings of the 30th International Geological Congress., Beijing, China. (1997)
1994 OFFLER R, BRIME C, 'CHARACTERIZATION OF THE LOW-GRADE METAMORPHISM IN THE NAMBUCCA BLOCK (NSW, AUSTRALIA)', REVISTA GEOLOGICA DE CHILE, SANTIAGO, CHILE (1994)
Citations Web of Science - 8
1978 Offler R, 'Chemistry and tectonic setting of L. Devonian and Ordovician-Silurian (?) meta-volcanics, Glenrock Station, NSW.', Advances in the study of the Sydney Basin, University of Newcastle (1978)
1978 Offler R, 'Determination of the original magmatic nature of altered volcanic rocks in thrust slices of the Peel Fault Zone, Glenrock Station, NSW, using trace element and pyroxene geochemistry', Geological Society Australian Convention, Townsville, Qld. (1978)
1973 Offler R, 'Low grade metamorphism in Carboniferous rocks north of Newcastle', Programme & Abstracts for the 8th Newcastle Symposium on "Advances in the study of the Sydney Basin", 1970-1982, Newcastle (1973)
Show 38 more conferences

Other (1 outputs)

Year Citation Altmetrics Link
2014 Offler R, Yan J, Lennox P, Kelly B, 'Why the Manning and Hastings(Nambucca) Oroclines don¿t exist.', ( pp.-): - (2014) [O1]
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Grants and Funding

Summary

Number of grants 16
Total funding $702,823

Click on a grant title below to expand the full details for that specific grant.


20031 grants / $5,000

Plants as bioremediators: Employing aquatic macrophytes to address heavy metal contamination$5,000

Funding body: Koppers Australia Pty Ltd

Funding body Koppers Australia Pty Ltd
Project Team Doctor Geoffrey MacFarlane, Conjoint Professor Ray Rose, Conjoint Associate Professor Robin Offler, Emeritus Professor John Patrick
Scheme University Grant Partner funding
Role Investigator
Funding Start 2003
Funding Finish 2003
GNo G0183115
Type Of Funding Not Known
Category UNKN
UON Y

19991 grants / $5,000

Chemical and Magnetic Signatures in Tuffs of the Newcastle and Wollombi Coal Measures as a Quantitative Tool for Stratigraphic Correlation.$5,000

Funding body: NSW Department of Mineral Resources

Funding body NSW Department of Mineral Resources
Project Team Conjoint Associate Professor Robin Offler
Scheme Research Grant
Role Lead
Funding Start 1999
Funding Finish 1999
GNo G0178714
Type Of Funding Other Public Sector - State
Category 2OPS
UON Y

19971 grants / $5,000

Timing of deformation in the Delamerian fold belt, S.A. Is it synchronous or diachronous?$5,000

Funding body: University of Newcastle

Funding body University of Newcastle
Project Team Conjoint Associate Professor Robin Offler, Dr D Gray, Dr D Foster
Scheme Project Grant
Role Lead
Funding Start 1997
Funding Finish 1997
GNo G0176561
Type Of Funding Internal
Category INTE
UON Y

19962 grants / $140,937

A Scanning Electron Microscope and Energy Dispersive Spectrometer Facility$140,000

Funding body: Department of Education, Training & Youth Affairs

Funding body Department of Education, Training & Youth Affairs
Project Team Conjoint Associate Professor Robin Offler
Scheme Research Infrastructure Equipment & Facilities (RIEF)
Role Lead
Funding Start 1996
Funding Finish 1996
GNo G0176070
Type Of Funding Scheme excluded from IGS
Category EXCL
UON Y

30th International Geological Congress, Beijing, China, 4 - 14 August 1996$937

Funding body: University of Newcastle

Funding body University of Newcastle
Project Team Conjoint Associate Professor Robin Offler
Scheme Travel Grant
Role Lead
Funding Start 1996
Funding Finish 1996
GNo G0176533
Type Of Funding Internal
Category INTE
UON Y

19952 grants / $23,000

Microscopic characterisation of the anisotropic (coke) texture and agglomeration behaviour of chars generated by caking and non-caking coals in combustion......$13,000

Funding body: ARC (Australian Research Council)

Funding body ARC (Australian Research Council)
Project Team Doctor Judy Bailey, Conjoint Associate Professor Philip Seccombe, Conjoint Associate Professor Robin Offler
Scheme Small Grant
Role Investigator
Funding Start 1995
Funding Finish 1995
GNo G0174866
Type Of Funding Scheme excluded from IGS
Category EXCL
UON Y

Determination of the metamorphism in a nd tectonic setting of the rocks in the western part of the southern New England Fold Belt.$10,000

Funding body: University of Newcastle

Funding body University of Newcastle
Project Team Conjoint Associate Professor Robin Offler
Scheme Project Grant
Role Lead
Funding Start 1995
Funding Finish 1995
GNo G0174869
Type Of Funding Internal
Category INTE
UON Y

19944 grants / $499,023

94 MECH C. Ultra clean laboratories for low-level isotopic and elemental analysis.$470,000

Funding body: Department of Education, Training & Youth Affairs

Funding body Department of Education, Training & Youth Affairs
Project Team Conjoint Associate Professor Robin Offler
Scheme Mechanism C Infrastructure
Role Lead
Funding Start 1994
Funding Finish 1994
GNo G0174399
Type Of Funding Scheme excluded from IGS
Category EXCL
UON Y

Determination of the metamorphism in a tectonic setting of the rocks in the western part of the southern New England Fold Belt$10,000

Funding body: University of Newcastle

Funding body University of Newcastle
Project Team Conjoint Associate Professor Robin Offler
Scheme Project Grant
Role Lead
Funding Start 1994
Funding Finish 1994
GNo G0174766
Type Of Funding Internal
Category INTE
UON Y

94 APP Determination of the metamorphism in and tectonic setting of the rocks in the western part of the Southern New England Fold Belt.$10,000

Funding body: University of Newcastle

Funding body University of Newcastle
Project Team Conjoint Associate Professor Robin Offler
Scheme Project Grant
Role Lead
Funding Start 1994
Funding Finish 1994
GNo G0175137
Type Of Funding Internal
Category INTE
UON Y

XRF Rube - X Ray Centre$9,023

Funding body: University of Newcastle

Funding body University of Newcastle
Project Team Conjoint Associate Professor Robin Offler
Scheme Special Project Grant
Role Lead
Funding Start 1994
Funding Finish 1994
GNo G0174722
Type Of Funding Internal
Category INTE
UON Y

19932 grants / $2,863

'Low Temperature Metamorphism - Processes, Products & Economic Significance - IGCP Project 294', Santiago, Chile, 15 - 30 November 1993$1,863

Funding body: University of Newcastle

Funding body University of Newcastle
Project Team Conjoint Associate Professor Robin Offler
Scheme Travel Grant
Role Lead
Funding Start 1993
Funding Finish 1993
GNo G0174416
Type Of Funding Internal
Category INTE
UON Y

Visit by prof Covadonga Brime, Professora Titular Dtpo Geologia, University Oviedo, Spain 25-6-93 to 4-8-93.$1,000

Funding body: University of Newcastle

Funding body University of Newcastle
Project Team Conjoint Associate Professor Robin Offler
Scheme Visitor Grant
Role Lead
Funding Start 1993
Funding Finish 1993
GNo G0173400
Type Of Funding Internal
Category INTE
UON Y

19923 grants / $22,000

Geology Of The Manning Group$10,000

Funding body: CSIRO - Research Management Committee

Funding body CSIRO - Research Management Committee
Project Team Conjoint Associate Professor Robin Offler
Scheme Collaborative Research Grant
Role Lead
Funding Start 1992
Funding Finish 1992
GNo G0173680
Type Of Funding Other Public Sector - Commonwealth
Category 2OPC
UON Y

Processes Of Crustal Evolution$7,500

Funding body: University of Newcastle

Funding body University of Newcastle
Project Team Conjoint Associate Professor Robin Offler
Scheme Project Grant
Role Lead
Funding Start 1992
Funding Finish 1992
GNo G0174191
Type Of Funding Internal
Category INTE
UON Y

In Situ Determination Of Ree Abundances In Minerals As A Guide To Ore Forming Processes$4,500

Funding body: CSIRO - Research Management Committee

Funding body CSIRO - Research Management Committee
Project Team Conjoint Associate Professor Robin Offler
Scheme Collaborative Research Grant
Role Lead
Funding Start 1992
Funding Finish 1992
GNo G0173684
Type Of Funding Other Public Sector - Commonwealth
Category 2OPC
UON Y
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Research Supervision

Current Supervision

Commenced Research Title / Program / Supervisor Type
2013 Supercontinental Reconstructions
Geology, Faculty of Science and Information Technology
Co-Supervisor

Past Supervision

Year Research Title / Program / Supervisor Type
2013 Implications of Structural, Metamorphic and Stratigraphic Features in a Palaeozoic Subduction Complex, Southeastern NSW, Australia
Geology, Faculty of Science and Information Technology
Principal Supervisor
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Conjoint Associate Professor Robin Offler

Position

Conjoint Associate Professor
School of Environmental and Life Sciences
Faculty of Science and Information Technology

Focus area

Earth Sciences

Contact Details

Email robin.offler@newcastle.edu.au
Phone (02) 40339084
Fax (02) 4921 6925

Office

Room G212
Building NIER
Location Callaghan
University Drive
Callaghan, NSW 2308
Australia
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