Research Project
Grant-in-Aid for Scientific Research (C)
In this paper we clarify the history of deformation in the Sor Rondane Mountains (SRMs) and the Lutzow-Holm Complex (LHC), East Antarctica, and construct their form-line contour maps and cross sections of the metamorphic and plutonic rocks in order to comprehend their structural features and provide constraints on the collisional tectonics of East and West Gondwana.Geological features of the SRMs resulted from collisional metamorphism and deformation (640-600 Ma), through crustal thinning, horizontal extension or compression after 600 Ma, sinistral transpression (600-560 Ma), to horizontal extension related to dextral shearing (560-550 Ma) in the East African and Antarctic Orogen (EAAO).The LHC is not uniform and includes several types of metamorphic units or fragments of the Latest Proterozoic to Early Paleozoic crust that were formed through distinct P-T-t evolutionary processes and divided by several faults. The LHC may have been situated in a different orogen from the EAAO.
All 2015 2014 2013
All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (9 results)
Atlas of Structural Geology
Volume: 1 Pages: 1-1
10.1016/b978-0-12-420152-1.00001-6
Volume: 1 Pages: 146-146
10.1016/b978-0-12-420152-1.00006-5
Precambrian Res.
Volume: 234 Pages: 30-46
10.1016/j.precamres.2013.05.010
Precambrian Research
Volume: 234 Pages: 8-29
10.1016/j.precamres.2013.05.017
