Re–Os geochronology of the Neoproterozoic–Cambrian Dalradian Supergroup of Scotland and Ireland: Implications for Neoproterozoic stratigraphy, glaciations and Re–Os systematics

Abad, 2010, Diagenesis to metamorphism transition in an episutural basin: the late Paleozoic St. Mary's Basin, Nova Scotia Canada, Canadian Journal of Earth Sciences, 47, 121, 10.1139/E09-079 Anbar, 2002, Proterozoic ocean chemistry and evolution: a bioinorganic bridge?, Science, 297, 1137, 10.1126/science.1069651 Anbar, 2007, A whiff of oxygen before the Great Oxidation Event?, Science, 317, 1903, 10.1126/science.1140325 Anderton, 1982, Dalradian deposition and the late Precambrian–Cambrian history of the N Atlantic region: a review of the early evolution of the Iapetus Ocean, Journal of the Geological Society, 139, 421, 10.1144/gsjgs.139.4.0421 Anderton, 1985, Sedimentation and tectonics in the Scottish Dalradian, Scottish Journal of Geology, 21, 407, 10.1144/sjg21040407 Arnaud, 2002, Catastrophic mass failure of a Neoproterozoic glacially influenced continental margin, the Great Breccia Port Askaig Formation, Scotland, Sedimentary Geology, 151, 313, 10.1016/S0037-0738(01)00283-4 Arnaud, 2004, Giant cross-beds in the Neoproterozoic Port Askaig Formation Scotland: implications for snowball Earth, Sedimentary Geology, 165, 155, 10.1016/j.sedgeo.2003.11.015 Awwiller, 1994, Geochronology and mass-transfer in Gulf-Coast Mudrocks (South-Central Texas, USA) – Rb–Sr, Sm–Nd and Ree systematics, Chemical Geology, 116, 61, 10.1016/0009-2541(94)90158-9 Baker, 1985, Pressures and temperatures of metamorphism in the eastern Dalradian, Journal of the Geological Society, 142, 137, 10.1144/gsjgs.142.1.0137 Banks, 2007, Provenance of intra-Rodinian basin-fills: the Lower Dalradian Supergroup Scotland, Precambrian Research, 153, 46, 10.1016/j.precamres.2006.11.004 Barrow, 1893, On an intrusion of muscovite–biotite gneiss in the southeast Highlands of Scotland and its accompanying metamorphism, Quarterly Journal of the Geological Society of London, 19, 330, 10.1144/GSL.JGS.1893.049.01-04.52 Baxter, 2002, Prograde temperature-time evolution in the Barrovian type-locality constrained by Sm/Nd garnet ages from Glen Clova, Scotland, Journal of the Geological Society, 159, 71, 10.1144/0016-76901013 Bowring, 2003, Geochronological constraints on terminal Neoproterozoic events and the rise of metazoans, Geophysical Research Abstracts, 5, 13219 Bowring, 2007, Geochronologic constraints on the chronostratigraphic framework of the Neoproterozoic Huqf Supergroup Sultanate of Oman, American Journal of Science, 307, 1097, 10.2475/10.2007.01 Brasier, 2000, Neoproterozoic chemostratigraphy and correlation of the Port Askaig glaciation, Dalradian Supergroup of Scotland, Journal of the Geological Society, 157, 909, 10.1144/jgs.157.5.909 British Geological Survey, 2005. Aberfoyle. Scotland Sheet 38E. Bedrock and Superficial geology. 1:50000. Geology Series. British Geological Survey, Keyworth, Nottingham. Brindley, 1982, Chemical compositions of berthierines, a review, Clays and Clay Minerals, 30, 153, 10.1346/CCMN.1982.0300211 Canfield, 1996, Late Proterozoic rise in atmospheric oxygen concentration inferred from phylogenetic and sulphur-isotope studies, Nature, 382, 127, 10.1038/382127a0 Canfield, 2007, Late-Neoproterozoic deep-ocean oxygenation and the rise of animal life, Science, 315, 92, 10.1126/science.1135013 Canfield, 2008, Ferruginous conditions dominated later Neoproterozoic deep-water chemistry, Science, 321, 949, 10.1126/science.1154499 Cawood, 2003, Source of the Dalradian Supergroup constrained by U–Pb dating of detrital zircon and implications for the East Laurentian margin, Journal of the Geological Society, 160, 231, 10.1144/0016-764902-039 Cawood, 2007, Sedimentary basin and detrital zircon record along East Laurentia and Baltica during assembly and breakup of Rodinia, Journal of the Geological Society, 164, 257, 10.1144/0016-76492006-115 Cawood, 2004, Laurentian provenance and an intracratonic tectonic setting for the Moine Supergroup, Scotland, constrained by detrital zircons from the Loch Eil and Glen Urquhart successions, Journal of the Geological Society, 161, 861, 10.1144/16-764903-117 Chew, 2010, Basic volcanism contemporaneous with the Sturtian glacial episode in NE Scotland, Transactions of the Royal Society of Edinburgh-Earth Sciences Cohen, 1999, Precise Re–Os ages of organic-rich mudrocks and the Os isotope composition of Jurassic seawater, Earth and Planetary Science Letters, 167, 159, 10.1016/S0012-821X(99)00026-6 Condon, 2000, Two from Donegal: Neoproterozoic glacial episodes on the northeast margin of Laurentia, Geology, 28, 951, 10.1130/0091-7613(2000)28<951:TFDNGE>2.0.CO;2 Condon, 2005, U–Pb Ages from the Neoproterozoic Doushantuo Formation, China, Science, 308, 95, 10.1126/science.1107765 Conliffe, 2010, Re–Os molybdenite dates from the Ballachulish and Kilmelford Igneous Complexes (Scottish Highlands): age constraints for late Caledonian magmatism, Journal of the Geological Society, 167, 297, 10.1144/0016-76492009-077 Corsetti, 2006, On Neoproterozoic cap carbonates as chronostratigraphic markers, 273 Creaser, 2002, Further evaluation of the Re–Os geochronometer in organic-rich sedimentary rocks: a test of hydrocarbon maturation effects in the Exshaw Formation Western Canada Sedimentary Basin, Geochimica et Cosmochimica Acta, 66, 3441, 10.1016/S0016-7037(02)00939-0 Dalziel, 1994, Precambrian Scotland as a Laurentia-Gondwana link – origin and significance of Cratonic Promontories, Geology, 22, 589, 10.1130/0091-7613(1994)022<0589:PSAALG>2.3.CO;2 Dalziel, 2001, Neoproterozoic extension on the Scottish Promontory of Laurentia: Paleogeographic and tectonic implications, The Journal of Geology, 109, 299, 10.1086/319974 Dempster, 1992, Zoning and recrystallization of phengitic micas: implications for metamorphic equilibration, Contributions to Mineralogy and Petrology, 109, 526, 10.1007/BF00306554 Dempster, 2002, Timing of deposition, orogenesis and glaciation within the Dalradian rocks of Scotland: constraints from U–Pb zircon ages, Journal of the Geological Society, 159, 83, 10.1144/0016-764901061 Dewey, 1999, Petrography of Ordovician and Silurian sediments in the western Irish Caledonides: tracers of a short-lived Ordovician continent-arc collision orogeny and the evolution of the Laurentian Appalachian-Caledonian margin, Geological Society, London, Special Publications, 164, 55, 10.1144/GSL.SP.1999.164.01.05 Esser, 1993, The osmium isotopic composition of the continental crust, Geochimica et Cosmochimica Acta, 57, 3093, 10.1016/0016-7037(93)90296-9 Evans, 1996, Dating the transition of smectite to illite in Palaeozoic mudrocks using the Rb–Sr whole-rock technique, Journal of the Geological Society, 153, 101, 10.1144/gsjgs.153.1.0101 Evans, 2000, Stratigraphic, geochronological, and paleomagnetic constraints upon the Neoproterozoic climatic paradox, American Journal of Science, 300, 347, 10.2475/ajs.300.5.347 Eyles, 1988, Glacially-influenced and tidally-influenced shallow marine sedimentation of the late Precambrian Port Askaig Formation Scotland, Palaeogeography Palaeoclimatology Palaeoecology, 68, 1, 10.1016/0031-0182(88)90013-2 Fairchild, 1995, Vendian basin evolution in East Greenland and NE Svalbard, Precambrian Research, 73, 217, 10.1016/0301-9268(94)00079-7 Fairchild, 2007, Neoproterozoic glaciation in the Earth System, Journal of the Geological Society, 164, 895, 10.1144/0016-76492006-191 Fanning, 2004, U–Pb SHRIMP ages of Neoproterozoic (Sturtian) glaciogenic Pocatello Formation, southeastern Idaho, Geology, 32, 881, 10.1130/G20609.1 Fike, 2006, Oxidation of the Ediacaran Ocean, Nature, 444, 744, 10.1038/nature05345 Fletcher, 2007, The Cambrian Fauna of the Leny Limestone, Perthshire Scotland, Earth and Environmental Science: Transactions of the Royal Society of Edinburgh, 98, 199 Friedrich, 1999, Geochronological constraints on the magmatic, metamorphic and thermal evolution of the Connemara Caledonides, western Ireland, Journal of the Geological Society, 156, 1217, 10.1144/gsjgs.156.6.1217 Frimmel, 2010, On the reliability of stable carbon isotopes for Neoproterozoic chemostratigraphic correlation, Precambrian Research, 182, 239, 10.1016/j.precamres.2010.01.003 Giddings, 2009, Facies-dependent [delta]13C variation from a Cryogenian platform margin, South Australia: evidence for stratified Neoproterozoic oceans?, Palaeogeography, Palaeoclimatology Palaeoecology, 271, 196, 10.1016/j.palaeo.2008.10.011 Glover, 1995, A Neoproterozoic multi-phase rift sequence: the Grampian and Appin groups of the southwestern Monadhliath Mountains of Scotland, Journal of the Geological Society, 152, 391, 10.1144/gsjgs.152.2.0391 Glover, 1996, A sequence stratigraphical approach to the understanding of basin history in orogenic Neoproterozoic successions: an example from the central Highlands of Scotland, Geological Society, London Special Publications, 103, 257, 10.1144/GSL.SP.1996.103.01.15 Glover, 1989, The Grampian Group: a major Late Proterozoic clastic sequence in the Central Highlands of Scotland, Journal of the Geological Society, 146, 85, 10.1144/gsjgs.146.1.0085 Gorokhov, 2001, Rb–Sr geochronology of middle Riphean shales, the Yusmastakh Formation of the Anabar Massif, northern Siberia, Stratigraphy and Geological Correlation, 9, 213 Halliday, 1989, The depositional age of the Dalradian Supergroup – U–Pb and Sm–Nd isotopic studies of the Tayvallich Volcanics, Scotland, Journal of the Geological Society, 146, 3, 10.1144/gsjgs.146.1.0003 Halverson, 2005, Toward a Neoproterozoic composite carbon-isotope record, Geological Society of America Bulletin, 117, 1181, 10.1130/B25630.1 Halverson, 2007, Ediacaran growth of the marine sulfate reservoir, Earth and Planetary Science Letters, 263, 32, 10.1016/j.epsl.2007.08.022 Halverson, 2007, Evolution of the 87Sr/86Sr composition of Neoproterozoic seawater, Palaeogeography, Palaeoclimatology, Palaeoecology, 256, 103, 10.1016/j.palaeo.2007.02.028 Halverson, 2007, Stratigraphy and geochemistry of a ca 800Ma negative carbon isotope interval in northeastern Svalbard, Chemical Geology, 237, 5, 10.1016/j.chemgeo.2006.06.013 Hambrey, 1983, Correlation of Late Proterozoic tillites in the North Atlantic region and Europe, Geological Magazine, 120, 209, 10.1017/S0016756800025425 Harris, 1994, The Dalradian Supergroup in Scotland and Ireland Harte, 1991, Evidence of fluid phase behaviour and controls in the intrusive complex and its aureole Hattori, 2003, Re–Os isotope systematics of the Taklimakan Desert sands, moraines and river sediments around the taklimakan desert, and of Tibetan soils, Geochimica et Cosmochimica Acta, 67, 1203, 10.1016/S0016-7037(02)01206-1 Highton, 1999, U–Pb zircon geochronology of migmatization in the northern Central Highlands: evidence for pre-Caledonian (Neoproterozoic) tectonometamorphism in the Grampian block, Scotland, Journal of the Geological Society, 156, 1195, 10.1144/gsjgs.156.6.1195 Hill, 2000, Mid-Neoproterozoic (∼830–750Ma) isotope stratigraphy of Australia and global correlation, Precambrian Research, 100, 181, 10.1016/S0301-9268(99)00074-1 Hoffman, 1991, Did the breakout of Laurentia Turn Gondwanaland inside-out?, Science, 252, 1409, 10.1126/science.252.5011.1409 Hoffman, 1998, A Neoproterozoic snowball earth, Science, 281, 1342, 10.1126/science.281.5381.1342 Hoffman, 2002, The snowball Earth hypothesis: testing the limits of global change, Terra Nova, 14, 129, 10.1046/j.1365-3121.2002.00408.x Hoffmann, 2004, U–Pb zircon date from the Neoproterozoic Ghaub Formation Namibia Constraints on Marinoan glaciation, Geology, 32, 817, 10.1130/G20519.1 Hutton, 2004, Evidence for a major Neoproterozoic orogenic unconformity within the Dalradian Supergroup of NW Ireland, Journal of the Geological Society, 161, 629, 10.1144/0016-764903-094 Hyde, 2000, Neoproterozoic/snowball Earth/simulations with a coupled climate/ice-sheet model, Nature, 405, 425, 10.1038/35013005 Jacobsen, 1999, The Sr, C and O isotopic evolution of Neoproterozoic seawater, Chemical Geology, 161, 37, 10.1016/S0009-2541(99)00080-7 Jaffe, 2002, Mobility of rhenium, platinum group elements and organic carbon during black shale weathering, Earth and Planetary Science Letters, 198, 339, 10.1016/S0012-821X(02)00526-5 Jensen, 2000, Complex trace fossils from the terminal Proterozoic of Namibia, Geology, 28, 143, 10.1130/0091-7613(2000)28<143:CTFFTT>2.0.CO;2 Jiang, 2007, Carbon isotope variability across the Ediacaran Yangtze platform in South China: implications for a large surface-to-deep ocean [delta]13C gradient, Earth and Planetary Science Letters, 261, 303, 10.1016/j.epsl.2007.07.009 Kendall, 2009, Correlation of Sturtian diamictite successions in southern Australia and northwestern Tasmania by Re–Os black shale geochronology and the ambiguity of “Sturtian”-type diamictite-cap carbonate pairs as chronostratigraphic marker horizons, Precambrian Research, 172, 301, 10.1016/j.precamres.2009.05.001 Kendall, 2009, 187Re–187Os geochronology of Precambrian organic-rich sedimentary rocks, Geological Society, London, Special Publications, 326, 85, 10.1144/SP326.5 Kendall, 2009, Re–Os and Mo isotope systematics of black shales from the Middle Proterozoic Velkerri and Wollogorang Formations McArthur Basin, northern Australia, Geochimica et Cosmochimica Acta, 73, 2534, 10.1016/j.gca.2009.02.013 Kendall, 2006, Re–Os geochronology of postglacial black shales in Australia: constraints on the timing of “Sturtian” glaciation, Geology, 34, 729, 10.1130/G22775.1 Kendall, 2004, Constraints on the timing of Marinoan ‘Snowball Earth’ glaciation by 187Re–187Os dating of a Neoproterozoic post-glacial black shale in Western Canada, Earth and Planetary Science Letters, 222, 729, 10.1016/j.epsl.2004.04.004 Kennedy, 1998, Two or four Neoproterozoic glaciations?, Geology, 26, 1059, 10.1130/0091-7613(1998)026<1059:TOFNG>2.3.CO;2 Kilburn, 1965, The stratigraphy and origin of the Port Askaig boulder bed series (Dalradian), Geological Journal, 4, 343, 10.1002/gj.3350040210 Kirschvink, 1992, Late Proterozoic low-latitude global glaciation: the snow ball earth Knoll, 2003, The geological consequences of evolution, Geobiology, 1, 3, 10.1046/j.1472-4669.2003.00002.x Knoll, 2006, Eukaryotic organisms in Proterozoic oceans, Philosophical Transactions of the Royal Society B: Biological Sciences, 361, 1023, 10.1098/rstb.2006.1843 Levasseur, 1999, The osmium riverine flux and oceanic mass balance of osmium, Earth and Planetary Science Letters, 174, 7, 10.1016/S0012-821X(99)00259-9 Li, 2008, Assembly, configuration, and break-up history of Rodinia: a synthesis, Precambrian Research, 160, 179, 10.1016/j.precamres.2007.04.021 Li, 2010, Late Neoproterozoic 40° intraplate rotation within Australia allows for a tighter-fitting and longer-lasting Rodinia, Geology, 39, 39, 10.1130/G31461.1 Litherland, 1980, The stratigraphy of the Dalradian rocks around Loch Creran, Argyll, Scottish Journal of Geology, 16, 105, 10.1144/sjg16020105 Logan, 1995, Terminal Proterozoic reorganization of biogeochemical cycles, Nature, 376, 53, 10.1038/376053a0 Logan, 1997, An isotopic biogeochemical study of Neoproterozoic and Early Cambrian sediments from the Centralian Superbasin Australia, Geochimica et Cosmochimica Acta, 61, 5391, 10.1016/S0016-7037(97)00290-1 Ludwig, 2003 Ludwig, 1980, Calculation of uncertainties of U–Pb isotope data, Earth and Planetary Science Letters, 46, 212, 10.1016/0012-821X(80)90007-2 Macdonald, 2010, Calibrating the Cryogenian, Science, 327, 1241, 10.1126/science.1183325 Macdonald, 2010, Early Neoproterozoic scale microfossils in the Lower Tindir Group of Alaska and the Yukon Territory, Geology, 38, 143, 10.1130/G25637.1 Mao, 2002, Re–Os dating of polymetallic Ni–Mo–PGE–Au mineralization in lower Cambrian Black Shales of South China and its geological significance, Economic Geology, 97, 1051, 10.2113/gsecongeo.97.5.1051 Martin, 2000, Age of Neoproterozoic Bilatarian body and trace fossils, White Sea, Russia: implications for Metazoan Evolution, Science, 288, 841, 10.1126/science.288.5467.841 McCay, 2006, Glacial trinity: Neoproterozoic Earth history within the British-Irish Caledonides, Geology, 34, 909, 10.1130/G22694A.1 Meert, 2007, Testing the Neoproterozoic glacial models, Gondwana Research, 11, 573, 10.1016/j.gr.2006.11.002 Melezhik, 2001, Chemostratigraphy of Neoproterozoic carbonates: implications for ‘blind dating’, Terra Nova, 13, 1, 10.1046/j.1365-3121.2001.00318.x Melezhik, 2008, The Shuram-Wonoka event recorded in a high-grade metamorphic terrane: insight from the Scandinavian Caledonides, Geological Magazine, 145, 161, 10.1017/S0016756807004189 Morton, 1982, Rb–Sr ages of Precambrian sedimentary-rocks in the USA, Precambrian Research, 18, 133, 10.1016/0301-9268(82)90041-9 Narbonne, 2003, Life after snowball: the oldest complex Ediacaran fossils, Geology, 31, 27, 10.1130/0091-7613(2003)031<0027:LASTOC>2.0.CO;2 Neilson, 2009, Timing, relations and cause of plutonic and volcanic activity of the Siluro-Devonian post-collision magmatic episode in the Grampian Terrane, Scotland, Journal of the Geological Society, 166, 545, 10.1144/0016-76492008-069 Noble, 1996, High precision U–Pb monazite geochronology of the c. 806Ma Grampian Shear Zone and the implications for the evolution of the Central Highlands of Scotland, Journal of the Geological Society, 153, 511, 10.1144/gsjgs.153.4.0511 Ogg, 2008 Ohr, 1991, Sr and Nd isotopic evidence for punctuated clay diagenesis, Texas Gulf-Coast, Earth and Planetary Science Letters, 105, 110, 10.1016/0012-821X(91)90124-Z Oliver, 2001, Reconstruction of the Grampian episode in Scotland: its place in the Caledonian Orogeny, Tectonophysics, 332, 23, 10.1016/S0040-1951(00)00248-1 Pattison, 2006, The fate of graphite in prograde metamorphism of pelites: an example from the Ballachulish aureole, Scotland, Lithos, 88, 85, 10.1016/j.lithos.2005.08.006 Pattison, 1991, Regional geology of the Ballachulish area, 19 Pattison, 1997, The geology and evolution of the Ballachulish Igneous Complex and Aureole, Scottish Journal of Geology, 33, 1, 10.1144/sjg33010001 Peucker-Ehrenbrink, 2001, Rhenium–osmium isotope systematics and platinum group element concentrations: Loess and the upper continental crust, Geochemistry Geophysics Geosystems, 2 Peucker-Ehrenbrink, 2000, The marine osmium isotope record, Terra Nova, 12, 205, 10.1046/j.1365-3121.2000.00295.x Prave, 1999, The Neoproterozoic Dalradian Supergroup of Scotland: an alternative hypothesis, Geological Magazine, 136, 609, 10.1017/S0016756899003155 Prave, 2009, A composite C-isotope profile for the Neoproterozoic Dalradian Supergroup of Scotland and Ireland, Journal of the Geological Society, 166, 845, 10.1144/0016-76492008-131 Prave, 2009, Global C cycle perturbations recorded in marbles: a record of Neoproterozoic Earth history within the Dalradian succession of the Shetland Islands, Scotland, Journal of the Geological Society, 166, 129, 10.1144/0016-76492007-126 Preiss, 2000, The Adelaide Geosyncline of South Australia and its significance in Neoproterozoic continental reconstruction, Precambrian Research, 100, 21, 10.1016/S0301-9268(99)00068-6 Pringle, J., 1939. The Discovery of Cambrian Trilobites in the Highland Border Rocks Near Callander Perthshire. Report of the British Association for the Advancement of Science, p. 252. Rainbird, 2001, Detrital zircon geochronology and provenance of the Torridonian, NW, Scotland, Journal of the Geological Society, 158, 15, 10.1144/jgs.158.1.15 Ravizza, 1989, Application of the 187Re–187Os system to black shale geochronometry, Geochimica et Cosmochimica Acta, 53, 3257, 10.1016/0016-7037(89)90105-1 Ravizza, 1991, The geochemistry of rhenium and osmium in recent sediments from the Black Sea, Geochimica et Cosmochimica Acta, 55, 3741, 10.1016/0016-7037(91)90072-D Rogers, 1991, Geochronology of appinitic and related granitic magmatism in the W Highlands of Scotland: constraints on the timing of transcurrent fault movement, Journal of the Geological Society, 148, 17, 10.1144/gsjgs.148.1.0017 Rooney, 2010, Re–Os geochronology of a Mesoproterozoic sedimentary succession, Taoudeni basin Mauritania: implications for basin-wide correlations and Re–Os organic-rich sediments systematics, Earth and Planetary Science Letters, 289, 486, 10.1016/j.epsl.2009.11.039 Sawaki, 2010, 87Sr/86Sr chemostratigraphy of Neoproterozoic Dalradian carbonates below the Port Askaig Glaciogenic Formation, Scotland, Precambrian Research, 179, 150, 10.1016/j.precamres.2010.02.021 Scott, 2008, Tracing the stepwise oxygenation of the Proterozoic ocean, Nature, 452, 456, 10.1038/nature06811 Selby, 2007, Direct rhenium–osmium age of the Oxfordian-Kimmeridgian boundary, Staffin bay, Isle of Skye, U. K., and the Late Jurassic time scale, Norwegian Journal of Geology, 87, 9 Selby, 2009, U–Pb zircon geochronology of the Aptian/Albian boundary implies that the GL-O international glauconite standard is anomalously young, Cretaceous Research, 30, 1263, 10.1016/j.cretres.2009.07.001 Selby, 2003, Re–Os geochronology of organic rich sediments: an evaluation of organic matter analysis methods, Chemical Geology, 200, 225, 10.1016/S0009-2541(03)00199-2 Selby, 2005, Direct radiometric dating of the Devonian-Mississippian time-scale boundary using the Re–Os black shale geochronometer, Geology, 33, 545, 10.1130/G21324.1 Selby, 2007, Assessment of the Re-187 decay constant by cross calibration of Re–Os molybdenite and U–Pb zircon chronometers in magmatic ore systems, Geochimica et Cosmochimica Acta, 71, 1999, 10.1016/j.gca.2007.01.008 Slack, 1992, Hydrothermal and metamorphic berthierine from the Kidd Creek Volcanogenic Massive Sulfide Deposit, Timmins, Ontario, Canadian Mineralogist, 30, 1127 Smith, 1999, Rift basin architecture and stratigraphical implications for basement-cover relationships in the Neoproterozoic Grampian Group of the Scottish Caledonides, Journal of the Geological Society, 156, 1163, 10.1144/gsjgs.156.6.1163 Smoliar, 1996, Re–Os isotope constraints on the age of Group IIA, IIIA, IVA, and IVB iron meteorites, Science, 271, 1099, 10.1126/science.271.5252.1099 Soper, 1994, Was Scotland a Vendian RRR junction?, Journal of the Geological Society, 151, 579, 10.1144/gsjgs.151.4.0579 Soper, 1995, Vendian and Riphean rifting in NW Scotland, Journal of the Geological Society, 152, 11, 10.1144/gsjgs.152.1.0011 Soper, 1999, Age of the Grampian orogeny in Scotland and Ireland, Journal of the Geological Society, 156, 1231, 10.1144/gsjgs.156.6.1231 Spencer, 1971, Late Precambrian glaciation in Scotland, Memoirs of the Geological Society of London, 6, 1 Strachan, 2002, The Northern Highland and Grampian terranes Sun, 2003, Evidence for rhenium enrichment in the mantle wedge from submarine arc-like volcanic glasses (Papua New Guinea), Geology, 31, 845, 10.1130/G19832.1 Tanner, 2005, Discussion on evidence for a major Neoproterozoic orogenic unconformity within the Dalradian Supergroup of NW Ireland, Journal of the Geological Society, 162, 221, 10.1144/0016-764904-105 Tanner, 1999, Testing for the presence of a terrane boundary within Neoproterozoic (Dalradian) to Cambrian siliceous turbidites at Callander, Perthshire, Scotland, Journal of the Geological Society, 156, 1205, 10.1144/gsjgs.156.6.1205 Tanner, 2007, The Highland Border Complex, Scotland: a paradox resolved, Journal of the Geological Society, 164, 111, 10.1144/0016-76492005-188 Thomas, 2004, 87Sr/86Sr chemostratigraphy of Neoproterozoic Dalradian limestones of Scotland and Ireland: constraints on depositional ages and time scales, Journal of the Geological Society, 161, 229, 10.1144/0016-764903-001 Thomson, J., 1871. On the occurrence of pebbles and boulders of granite in schistose rocks on Islay, Scotland. Report of the 40th Meeting of the British Association for the Advancement of Science, Liverpool. Thomson, 1877, On the geology of the island of Islay, Transactions of the Geological Society of Glasgow, 5, 200, 10.1144/transglas.5.2.200 Tilley, 1925, A preliminary survey of metamorphic zones in the southern Highlands of Scotland, Quarterly Journal of the Geological Society of London, 81 Trindade, 2007, Palaeolatitude of glacial deposits and palaeogeography of Neoproterozoic ice ages, Comptes Rendus Geosciences, 339, 200, 10.1016/j.crte.2007.02.006 Vidal, 1997, Biodiversity, speciation, and extinction trends of Proterozoic and Cambrian Phytoplankton, Paleobiology, 23, 230, 10.1017/S0094837300016808 Voll, 1991 Walker, 2002, Comparative 187Re–187Os systematics of chondrites: implications regarding early solar system processes, Geochimica et Cosmochimica Acta, 66, 4187, 10.1016/S0016-7037(02)01003-7 Walker, 2002, The osmium isotopic composition of convecting upper mantle deduced from ophiolite chromites, Geochimica et Cosmochimica Acta, 66, 329, 10.1016/S0016-7037(01)00767-0 Walsh, 2007, The use of the scanning electron microscope in the determination of the mineral composition of Ballachulish slate, Materials Characterization, 58, 1095, 10.1016/j.matchar.2007.04.013 Yang, 2009, Re–Os depositional age for Archean carbonaceous slates from the southwestern Superior Province: challenges and insights, Earth and Planetary Science Letters, 280, 83, 10.1016/j.epsl.2009.01.019 Zhou, 2004, New constraints on the ages of Neoproterozoic glaciations in south China, Geology, 32, 437, 10.1130/G20286.1