Petrology, geochemistry, and geochronology of plutonic rocks from the present Southwest Indian Ridge: Implications for dropstone distribution in the Indian Ocean

Allibone, 2002, Initiation of magmatism during the cambrian-ordovician Ross orogeny in southern Victoria Land, Antarctica, Bull. Geol. Soc. Am., 114, 1007, 10.1130/0016-7606(2002)114<1007:IOMDTC>2.0.CO;2 Arakawa, 1994, Nd and Sr isotope characteristics of the plutonic rocks in the Sør Rondane Mountains, East Antarctica, Proc. NIPR Symp. Antarct. Geosci., 7, 49 Aries, 2000, A routine method for oxide and hydroxide interference corrections in ICP-MS chemical analysis of environmental and geological samples, Geostand. Newsl., 10.1111/j.1751-908X.2000.tb00583.x Ashwal, 2002, Petrogenesis of neoproterozoic granitoids and related rocks from the Seychelles: the case for an Andean-type Arc origin, J. Petrol., 43, 45, 10.1093/petrology/43.1.45 Awaji, 2006, A simple method for precise determination of 23 trace elements in granitic rocks by ICP-MS after lithium tetraborate fusion, Resour. Geol., 56, 471, 10.1111/j.1751-3928.2006.tb00299.x Baksi, 1999, Reevaluation of plate motion models based on hotspot tracks in the Atlantic and Indian Oceans, J. Geol., 10.1086/314329 Bénard, 2010, The Kerguelen plateau: records from a long-living/composite microcontinent, Mar. Petrol. Geol., 27, 633, 10.1016/j.marpetgeo.2009.08.011 Bennett, 1996, Dropstones: their origin and significance, Palaeogeogr. Palaeoclimatol. Palaeoecol., 121, 331, 10.1016/0031-0182(95)00071-2 Coleman, 1979 DeMets, 1994, Effect of recent revisions to the geomagnetic reversal time scale on estimates of current plate motions, Geophys. Res. Lett., 10.1029/94GL02118 Elburg, 2016, One hundred fifty million years of intrusive activity in the Sør Rondane mountains (East Antarctica): implications for gondwana assembly, J. Geol., 124, 1, 10.1086/684052 Fitzsimons, 2000, Grenville-age basement provinces in East Antarctica: evidence for three separate collisional orogens, Geology, 28, 879, 10.1130/0091-7613(2000)28<879:GBPIEA>2.0.CO;2 Foden, 2006, The timing and duration of the Delamerian orogeny: correlation with the Ross Orogen and implications for Gondwana assembly, J. Geol., 114, 189, 10.1086/499570 Foden, 2002, Granite production in the delamerian orogen, south Australia, J. Geol. Soc. London., 159, 557, 10.1144/0016-764901-099 Goodge, 2007, Metamorphism in the Ross orogen and its bearing on Gondwana margin tectonics, Spec. Pap. Geol. Soc. Am., 419, 185 Goodge, 2004, Siliciclastic record of rapid denudation in response to convergent-margin orogenesis, Ross Orogen, Antarctica, Spec. Pap. Geol. Soc. Am., 378, 105 Grantham, 2011, New SHRIMP, Rb/Sr and Sm/Nd isotope and whole rock chemical data from central Mozambique and western Dronning Maud Land, Antarctica: implications for the nature of the eastern margin of the Kalahari Craton and the amalgamation of Gondwana, J. Afr. Earth Sci., 59, 74, 10.1016/j.jafrearsci.2010.08.005 Hervé, 2008, The metamorphic complexes of the patagonian and fuegian andes, Geol. Acta, 6, 43 Horsburgh, 1830, VII. Remarks on several icebergs which have been met with in unusually low latitudes in the Southern Hemisphere, Phil. Trans. Roy. Soc. Lond., 120, 117, 10.1098/rstl.1830.0009 Hulton, 1994, Glacier modeling and the climate of patagonia during the last glacial maximum, Quat. Res., 10.1006/qres.1994.1049 Hyodo, 2008, Laser Probe 40Ar/39Ar dating: history and development from a technical perspective, Gondwana Res., 14, 609, 10.1016/j.gr.2008.01.008 Hyodo, 1999, Homogeneity of neutron flux during irradiation for 40Ar/39Ar age dating in the research reactor at Kyoto University, Journal of Mineralogy Petrology and Economic Geology of Japan, 94, 329, 10.2465/ganko.94.329 Ingle, 2002, Indian continental crust recovered from Elan Bank, Kerguelen Plateau (ODP leg 183, site 1137), J. Petrol., 43, 1241, 10.1093/petrology/43.7.1241 Jacobs, 2015, Two distinct late mesoproterozoic/early neoproterozoic basement provinces in central/eastern dronning Maud Land, east Antarctica: the missing link, 15-21°E, Precambrian Res., 265, 249, 10.1016/j.precamres.2015.05.003 Kamei, 2013, Late proterozoic juvenile arc metatonalite and adakitic intrusions in the Sør Rondane mountains, eastern dronning Maud Land, Antarctica, Precambrian Res., 234, 47, 10.1016/j.precamres.2012.09.026 Kröner, 2005, AFRICA | pan-african orogeny, 1 Li, 2003, Pan-african alkali granitoids from the Sør Rondane mountains, east Antarctica, Gondwana Res., 6, 595, 10.1016/S1342-937X(05)71010-8 Lu, 2007, Coprecipitation of Ti, Mo, Sn and Sb with fluorides and application to determination of B, Ti, Zr, Nb, Mo, Sn, Sb, Hf and Ta by ICP-MS, Chem. Geol., 236, 13, 10.1016/j.chemgeo.2006.08.007 Ludwig, 2012, User's manual for Isoplot version 3.75–4.15: a geochronological toolkit for microsoft excel, Berkeley Geochronological Center Special Publication, 5 Machida, 2009, Evidence for recycled plate material in Pacific upper mantle unrelated to plumes, Geochem. Cosmochim. Acta, 73, 3028, 10.1016/j.gca.2009.01.026 Machida, 2015, Petit-spot geology reveals melts in upper-most asthenosphere dragged by lithosphere, Earth Planet Sci. Lett., 10.1016/j.epsl.2015.06.018 Machida, 2008, Petrology and geochemistry of cross-chains in the Izu-Bonin back arc: three mantle components with contributions of hydrous liquids from a deeply subducted slab, G-cubed Makishima, 2002, Determination of chromium, nickel, copper and zinc in milligram samples of geological materials using isotope dilution high resolution inductively coupled plasma-mass spectrometry, Geostand. Newsl., 10.1111/j.1751-908X.2002.tb00622.x Makishima, 2006, Determination of major/minor and trace elements in silicate samples by ICP-QMS and ICP-SFMS applying isotope dilution-internal standardisation (ID-IS) and multi-stage internal standardisation, Geostand. Geoanal. Res., 30, 245, 10.1111/j.1751-908X.2006.tb01066.x Manoj, 2013, Provenance and temporal variability of ice rafted debris in the Indian sector of the Southern Ocean during the last 22,000 years, J. Earth Syst. Sci., 122, 491, 10.1007/s12040-013-0271-5 Nielsen, 2007, Origin and significance of ice-rafted detritus in the Atlantic sector of the Southern Ocean, G-cubed, 8 Orsi, 1995, On the meridional extent and fronts of the Antarctic Circumpolar Current, Deep. Res. Part I, 42, 641, 10.1016/0967-0637(95)00021-W Osanai, 2013, Geologic evolution of the Sør Rondane Mountains, East Antarctica: collision tectonics proposed based on metamorphic processes and magnetic anomalies, Precambrian Res., 234, 8, 10.1016/j.precamres.2013.05.017 Owada, 2013, Magmatic history and evolution of continental lithosphere of the Sør Rondane Mountains, eastern Dronning Maud Land, East Antarctica, Precambrian Res., 234, 63, 10.1016/j.precamres.2013.02.007 Owada, 2006, Pan-african adakitic rocks from the Sør Rondane mountains, east Antarctica, Polar Geosci., 173 Palmer, 1987 Pankhurst, 2014, The Gondwana connections of northern Patagonia, J. Geol. Soc. London., 171, 313, 10.1144/jgs2013-081 Pankhurst, 2003, Chronological study of the pre-Permian basement rocks of southern Patagonia, J. South Am. Earth Sci., 16, 27, 10.1016/S0895-9811(03)00017-8 Paulsson, 2003, A geochronological and geochemical study of rocks from Gjelsvikfjella, dronning Maud Land, Antarctica - implications for mesoproterozoic correlations and assembly of gondwana, Precambrian Res., 125, 113, 10.1016/S0301-9268(03)00109-8 Ramos, 2014, Patagonia: where does it come from?, J. Iber. Geol., 40, 367 Rocchi, 2009, Granite-lamprophyre connection in the latest stages of the early paleozoic Ross orogeny (Victoria Land, Antarctica), Bull. Geol. Soc. Am., 121, 801, 10.1130/B26342.1 Roddick, 1983, High precision intercalibration of 40Ar-39Ar standards, Geochem. Cosmochim. Acta, 10.1016/0016-7037(83)90154-0 Romanov, 2017, Geographical distribution and volume of Antarctic icebergs derived from ship observation data, Ann. Glaciol., 58, 28, 10.1017/aog.2017.2 Ruppel, 2021, Protracted late neoproterozic - early palaeozoic deformation and cooling history of Sør Rondane, east Antarctica, from 40Ar/39Ar and U-Pb geochronology, Geol. Mag., 158, 635, 10.1017/S0016756820000746 Sato, 2010, Quantitative analyses with X-ray fluorescence analyzer of major elements for rock samples, Bull. Inst. Nat. Sci. Senshu Univ., 41, 15 Sato, 2013, Magmatic activities on the Southwest Indian Ridge between 35°E and 40°E, the closest segment to the Marion hotspot, G-cubed, 14, 5286 Steiger, 1977, Subcommission on geochronology: convention on the use of decay constants in geo- and cosmochronology, Earth Planet Sci. Lett., 10.1016/0012-821X(77)90060-7 Sun, 1989, Chemical and isotopic systematics of oceanic basalts: implications for mantle composition and processes, Geol. Soc. Spec. Publ., 42, 313, 10.1144/GSL.SP.1989.042.01.19 Tainosho, 1992, Petrochemical character and Rb–Sr isotopic investigation of the granitic rocks from the Sør Rondane Mountains, East Antarctica, 45 Teitler, 2010, Determination of Antarctic Ice Sheet stability over the last ~500 ka through a study of iceberg-rafted debris, Paleoceanography, 25, 1, 10.1029/2008PA001691 Torsvik, 2013, A precambrian microcontinent in the Indian ocean, Nat. Geosci., 6, 223, 10.1038/ngeo1736 Weber, 2014, Millennial-scale variability in Antarctic ice-sheet discharge during the last deglaciation, Nature, 510, 134, 10.1038/nature13397 Wessel, 2019, The generic mapping tools version 6, G-cubed