Mathematics – Logic
Scientific paper
Mar 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999georl..26..787h&link_type=abstract
Geophysical Research Letters, Volume 26, Issue 6, p. 787-790
Mathematics
Logic
3
Geomagnetism And Paleomagnetism: Paleomagnetism Applied To Tectonics (Regional, Global), Information Related To Geographic Region: Asia, Information Related To Geologic Time: Paleozoic
Scientific paper
We report paleomagnetic results for Early-Middle Ordovician limestone rocks from the eastern part of the Hexi Corridor, northwest China. The characteristic high temperature component B isolated from 74 out of 114 samples exhibited dual polarity and passed the fold and reversal tests at the 95% confidence level. The corresponding paleopole, at 326.5°E, 31.8°N with A95=9.5°, is in agreement with the coeval poles from the stable North China Block (NCB). It implies that the Alashan/Hexi Corridor (AHC) terrane was part of the NCB since the Early-Middle Ordovician, which is consistent with geological evidence. The Silurian and Devonian paleomagnetic results from the AHC terrane may therefore be used to discuss the middle Paleozoic tectonic displacement and paleogeographic reconstruction of the NCB.
Huang B. C.
Otofuji Y.
Yang Zhan-Ying
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