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Paleomagnetism of western China and ...

Li, Yianping.

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Paleomagnetism of western China and the southern Sierra Nevada.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Paleomagnetism of western China and the southern Sierra Nevada./
作者:	Li, Yianping.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 1988,
面頁冊數:	245 p.
附註:	Source: Dissertation Abstracts International, Volume: 49-11, Section: B, page: 4728.
Contained By:	Dissertation Abstracts International49-11B.
標題:	Geophysics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=8826183

Paleomagnetism of western China and the southern Sierra Nevada.
Li, Yianping.

Paleomagnetism of western China and the southern Sierra Nevada. - Ann Arbor : ProQuest Dissertations & Theses, 1988 - 245 p.

Source: Dissertation Abstracts International, Volume: 49-11, Section: B, page: 4728.

Thesis (Ph.D.)--Stanford University, 1988.

This thesis describes paleomagnetic studies in western China and the southern Sierra Nevada. A review of previous paleomagnetic studies from the Tarim, Sino-Korean and Yangtze cratons is presented. The following conclusions are supported by the results from China: (1) The Yangtze craton was at about the same paleolatitude as the Sino-Korean craton, and probably collided with the Sino-Korean craton obliquely during the Late Permian; (2) The Sino-Korean craton had not collided with the Siberian craton by the Late Permian; (3) The Tarim craton had not collided with the Sino-Korean craton by the Late Permian.Subjects--Topical Terms:

535228
Geophysics.

Paleomagnetism of western China and the southern Sierra Nevada.
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100 1 $a Li, Yianping. $3 3341640
245 1 0 $a Paleomagnetism of western China and the southern Sierra Nevada.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 1988
300 $a 245 p.
500 $a Source: Dissertation Abstracts International, Volume: 49-11, Section: B, page: 4728.
500 $a Adviser: Michael McWilliams.
502 $a Thesis (Ph.D.)--Stanford University, 1988.
520 $a This thesis describes paleomagnetic studies in western China and the southern Sierra Nevada. A review of previous paleomagnetic studies from the Tarim, Sino-Korean and Yangtze cratons is presented. The following conclusions are supported by the results from China: (1) The Yangtze craton was at about the same paleolatitude as the Sino-Korean craton, and probably collided with the Sino-Korean craton obliquely during the Late Permian; (2) The Sino-Korean craton had not collided with the Siberian craton by the Late Permian; (3) The Tarim craton had not collided with the Sino-Korean craton by the Late Permian.
520 $a Paleomagnetic poles from Permian dikes and Devonian redbeds in the Tarim craton are reported. These paleomagnetic data suggest that the Tarim craton had collided with the Khazakstan/Tianshan block by the Late Carboniferous and northward translation of the Tarim craton continued after initial collision. The reconstruction of the Tarim and Yangtze cratons based on paleomagnetic results suggests that the two cratons might have been adjacent to each other before they started to move.
520 $a The paleomagnetic results from the terranes in western China are discussed. The magnetizations of lower Paleozoic rocks suggest that the Hexizhoulang terrane was not a part of the Sino-Korean craton, but was accreted later. The North Qilian terrane was in an equatorial position during the Early Ordovician. The magnetic inclination of Late Carboniferous limestone from the Chaidam terrane is not significantly different from that expected from the Tarim craton. Both normal and reversed polarities are observed in the Sinian Quanji formation in the Chaidam terrane. The low paleolatitude of the Quanji formation suggest that the Sinian tillite was also formed in a low paleolatitude.
520 $a Paleomagnetic results from the southern-most part of the Sierra Nevada are discussed. Directions of magnetization at four localities in the southern Sierra Nevada are progressively deflected; this is consistent with the hypothesis that the region was tectonically rotated in an orocline. No paleomagnetic deflection was observed northwest of the White Wolf-Kern Canyon faults. Oroclinal bending of a block bounded by the San Andreas, Garlock and White Wolf-Kern Canyon faults may have occurred before about 16 m.y. ago. (Abstract shortened with permission of author.).
590 $a School code: 0212.
650 4 $a Geophysics. $3 535228
690 $a 0373
710 2 $a Stanford University. $3 754827
773 0 $t Dissertation Abstracts International $g 49-11B.
790 $a 0212
791 $a Ph.D.
792 $a 1988
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=8826183