Research Project
Grant-in-Aid for Scientific Research (C)
This is a detailed study of Late Proterozoic intrusion in the Sor Rondane Mountains, Antarctica. The intrusion is classified into three lithologies: strong gneissose metatonalite, weak gneissose metatonalite and metagabbro. The strong gneissose metatonalite is the main lithotype, which is geochemically categorized as low-K tholeiitic granitoid. Petrological studies suggest that the tholeiitic magma was derived from low-K basalt melting at the crustal depth, and the most plausible tectonic setting is a juvenile oceanic arc. The other two rocks are scattered as small intrusions and are geochemically regarded as calc-alkaline adakites related to oceanic slab melting. U-Pb SHRIMP zircon ages of the tholeiitic metatonalite are concentrated at 998-995 Ma, whereas the calc-alkaline adakites are younger and divided between ages 945-920 Ma and 772 Ma. Therefore, the Late Proterozoic intrusion was formed first as a juvenile arc component, followed by adakitic magmatism with oceanic slab melting.
All 2014 2013 2012 2011 Other
All Journal Article (27 results) (of which Peer Reviewed: 27 results, Open Access: 1 results) Presentation (31 results) Book (1 results)
Lithos
Volume: 184 Pages: 105-131
10.1016/j.lithos.2013.10.014
Geochem. Geophys. Geosyst.
Volume: 15 Issue: 3 Pages: 691-739
10.1002/2013gc005132
地質学雑誌(補遺)
Volume: 120
130004756771
地球科学
Volume: 68
110009815505
MAGMA
Volume: 96
The Journal of the Geological Society of Japan
Volume: 119 Issue: 3 Pages: 190-204
10.5575/geosoc.2013.0003
130003363926
Precambrian Research
Volume: 未定 Pages: 47-62
10.1016/j.precamres.2012.09.026
Volume: 未定 Pages: 63-84
10.1016/j.precamres.2013.02.007
Precambrian Res.
Volume: 234 Pages: 257-278
10.1016/j.precamres.2012.10.016
Volume: 未定 Pages: 161-182
10.1016/j.precamres.2012.10.009
Volume: 234 Pages: 8-29
10.1016/j.precamres.2013.05.017
Volume: 未定 Pages: 183-209
10.1016/j.precamres.2012.12.002
Volume: 未定 Pages: 136-160
10.1016/j.precamres.2012.11.011
Volume: 未定 Pages: 210-228
10.1016/j.precamres.2012.10.002
Volume: 234 Pages: 1-7
10.1016/j.precamres.2013.06.010
130005451933
Geological Society of London, Special Publication
Volume: 383 Issue: 1 Pages: 113-133
10.1144/sp383.4
Japanese Magazine of Mineralogical and Petrological Sciences
Volume: 42 Issue: 4 Pages: 159-173
10.2465/gkk.120808
10031191336
Volume: 42 Issue: 4 Pages: 185-189
10.2465/gkk.120924
10031191338
Volume: 227 Pages: 99-119
10.1016/j.precamres.2012.04.006
Volume: 234 Pages: 30-46
10.1016/j.precamres.2013.05.010
Volume: 118 Issue: 1 Pages: 20-38
10.5575/geosoc.2011.0021
130001915360
Applied Geochemistry
Volume: 27 Pages: 796-805
Gondwana Research
Volume: 21 Issue: 4 Pages: 829-837
10.1016/j.gr.2011.08.013
American mineralogist
Volume: 97 Issue: 2-3 Pages: 268-280
10.2138/am.2012.3827
Volume: Vol.200-203 Pages: 104-128
10.1016/j.precamres.2012.01.013
Archean Dharwar Craton, India、Canadian Mineralogist
Volume: 50 Issue: 3 Pages: 705-718
10.3749/canmin.50.3.705
Polar Science
Volume: 5 Issue: 3 Pages: 345-359
10.1016/j.polar.2011.03.005
110008667905