By Peter Clift, Wolfgang Kuhnt, Pinxian Wang, Dennis E. Hayes
Published by way of the yank Geophysical Union as a part of the Geophysical Monograph Series.
The examine of the advanced interactions among continents and oceans has turn into a number one sector for twenty first century earth cience. during this quantity, continent?ocean interactions in tectonics, arc-continent collision, sedimentology, and climatic volution in the East Asian Marginal Seas take priority. hyperlinks among oceanic and continental weather, the sedimentology of coastal and shelf components, and the hyperlinks among deformation of continental and oceanic lithosphere also are discussed.
As an creation to the technological know-how offered during the quantity, Wang discusses some of the attainable interactions among the tectonic evolution of Asia and either neighborhood and worldwide weather. He speculates that uplift of primary Asia within the Pliocene can have brought on the formation of the various significant rivers that drain north via Siberia into the Arctic Ocean. He additionally argues that it's the supply of this clean water that enables the formation of sea ice in that sector and prompted the beginning of Northern Hemispheric glaciation. this can be essentially the most dramatic ways that Asia has formed the Earth's weather and represents a substitute for the opposite competing types that experience formerly emphasised the function of oceanic gateway closure in important the US. in addition, his thought for significant uplift of a minimum of a part of Tibet and Mongolia as past due because the Pliocene, in line with the historical past of drainage evolution in Siberia, helps fresh information from the southern Tarim Basin and from the Qilian Shan and Qaidam and Jiuxi Basins in northeast Tibet that point out floor uplift at the moment. Constraining the timing and styles of Tibetan floor uplift is essential to trying out competing types for pressure lodging in Asia following India?Asia collision.
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Extra info for Continent-Ocean Interactions Within East Asian Marginal Seas
For example ini tiation of the Red River Fault). , Central Japan, Taiwan, New Guinea and Timor). parallels the ambient geomagnetic field, which when aver aged over about 10 years has the geometry of a simple geo centric axial dipole. From the two directional components of magnetization, inclination and declination, it is possible to deduce the latitude at which a rock unit formed, and how much it may have subsequently rotated. , Van der Voo ) are converted into an apparent paleomagnetic pole.
F. Butler, and C. Jia, Discordant palaeomagnetic direction in Miocene rocks from the central Tarim Basin: evidence for local deformation and inclination shallowing, Earth Planet. Sci. , 199, 4 7 3 ^ 8 2 , 2002. Enkin, R. , Z. Yang, Y. Chen, a n d Y Courtillot. Paleomagnetic con straints on the geodynamic history of the major blocks of China from the P e r m i a n to the present, J. Geophys. , 97B, 13953-13989, 1992. , and P. Bogl, Ar/Ar data from the Shergol-Baltikar blueschists, Indus suture zone, Ladakh: record of mid-Cretaceous subduction to Tertiary collision, J.
For Asia, convergence/colli sion tectonism has largely involved Gondwana-derived blocks from the south/southeast colliding with a rigid "backstop". , Audley-Charles, 1996, 1999]. , Besse and Courtillot, 1991, 2002; Torsvik et al, 2001]. However, a large body of paleo magnetic datafromUpper Cretaceous and Cenozoic rocks in central, eastern and southern Asia are in conflict with this model. The essence of the problem is that the observed incli nations are shallower than expected based on the available reference poles from western Eurasia.
Continent-Ocean Interactions Within East Asian Marginal Seas by Peter Clift, Wolfgang Kuhnt, Pinxian Wang, Dennis E. Hayes