Title Geosciences research in East Antarctica (0E-60E); present status and future perspectives
Author Satish-Kumar, M.; Hokada, T.; Kawakami, T.; Dunkley, D.J.
Author Affil Satish-Kumar, M., Shizuoka University, Institute of Geosciences, Shizuoka, Japan. Other: National Institute of Polar Research, Japan; Kyushu University, Japan; Chiba University, Japan; Kyoto University, Japan
Source Geodynamic evolution of East Antarctica; a key to the east-west Gondwana connection, edited by M. Satish-Kumar, Y. Motoyoshi, Y. Osanai, Y. Hiroi and K. Shiraishi. Geological Society Special Publications, Vol.308, p.1-20, . Publisher: Geological Society of London, London, United Kingdom. ISSN: 0305-8719. ISBN: 978-1-86239- 268-7
Publication Date 2008
Notes In English. 117 refs. Ant. Acc. No: 85812
Index Terms Antarctica--East Antarctica; Antarctica; Archean; basement; Cambrian; crust; East Antarctica; geodynamics; Gondwana; igneous rocks; International Polar Year 2007-08; IPY 2007-08 Research Publications; Lutzow-Holm Complex; metamorphic rocks; metamorphism; Napier Complex; P-T conditions; paleogeography; Paleozoic; Precambrian; Proterozoic; Rayner Complex; supercontinents; tectonics; terranes; upper Precambrian; Yamato-Belgica Complex
Abstract In both palaeoenvironmental and palaeogeographical studies, Antarctica plays a unique role in our understanding of the history of the Earth. It has maintained a unique geographical position at the South Pole for long periods. As the only unpopulated continent, the absence of political barriers or short-term economic interests has allowed international collaborative science to flourish. Although 98% of its area is covered by ice, the coastal Antarctic region is one of the well- studied regions in the world. The integrity and success of geological studies lies in the fact that exposed outcrops are well preserved in the low-latitude climate. The continuing programme of the Japanese Antarctic Research Expedition focuses on the geology of East Antarctica, especially in the Dronning Maud Land and Enderby Land regions. Enderby Land preserves some of the oldest Archaean rocks on Earth, and the Mesoproterozoic to Palaeozoic history of Dronning Maud Land is extremely important in understanding the formation and dispersion of Rodinia and subsequent assembly of Gondwana. The geological features in this region have great significance in defining the temporal and spatial extension of orogenic belts formed by the collision of proto-continents. Present understanding of the evolution of East Antarctica in terms of global tectonics allows us to visualize how continents have evolved through time and space, and how far back in time the present-day plate-tectonic regime may have operated. Although several fundamental research problems still need to be resolved, the future direction of geoscience research in Antarctica will focus on how the formation and evolution of continents and supercontinents have affected the Earth's environment, a question that has been addressed only in recent years.
URL http://hdl.handle.net/10.1144/SP308.1
Publication Type journal article
Record ID 290795