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dc.contributor.authorKazuyoshi Aiharaen_US
dc.contributor.authorKazuhiro Takemotoen_US
dc.contributor.authorHaider Zamanen_US
dc.contributor.authorHiroo Inokuchien_US
dc.contributor.authorDaisuke Miuraen_US
dc.contributor.authorAdichat Surinkumen_US
dc.contributor.authorApichat Paiyaromen_US
dc.contributor.authorBurapha Phajuyen_US
dc.contributor.authorSarawute Chantrapraserten_US
dc.contributor.authorYuenyong Panjasawatwongen_US
dc.contributor.authorPisanu Wongpornchaien_US
dc.contributor.authorYo ichiro Otofujien_US
dc.date.accessioned2018-09-10T04:02:55Z-
dc.date.available2018-09-10T04:02:55Z-
dc.date.issued2007-05-15en_US
dc.identifier.issn13679120en_US
dc.identifier.other2-s2.0-34247397474en_US
dc.identifier.other10.1016/j.jseaes.2007.01.002en_US
dc.identifier.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=34247397474&origin=inwarden_US
dc.identifier.urihttp://cmuir.cmu.ac.th/jspui/handle/6653943832/61021-
dc.description.abstractPaleomagnetic samples of red sandstones were collected at 16 sites from the Lower to Upper Jurassic Phu Kradung formation and the Upper Jurassic Phra Wihan formation around Nan City (19.2°N, 101.0°E) in the southern region of the Shan-Thai block. After stepwise thermal demagnetization, a high-temperature component with an unblocking temperature of about 680 °C is isolated from 11 sites. We interpret this to be a prefold characteristic remanent magnetization because of a positive fold test at the 95% confidence level. The tilt-corrected mean paleomagnetic direction from 11 sites is D = 32.3°, I = 33.3°, α95= 12.2°, k = 15.0, which gives a paleomagnetic pole for this area of 60.1°N, 186.5°E with A95= 11.7°. Compared with a Jurassic paleopole for the stable part of the Yangtze block, we observe a clockwise tectonic rotation of 12.8°, which is similar to the observed rotation (18-28°) of the northern region of the Shan-Thai block. This amount contrasts with a large rotation of more than 45° that is estimated from the narrow zone extending from Luxi to Mengla in the central region of this block. This declination aspect suggests that a coherent whole block rotation by about 20° of the Shan-Thai block took place in an earlier phase during indentation of India into Asia and that an internal deformation with additional local rotation between 25° and 77° followed within a limited zone in the central part. The internal deformation of the Shan-Thai block absorbed the stress on the Asian continent induced by indentation of India as well as its coherent whole block motions of clockwise rotation and southward displacement. © 2007 Elsevier Ltd. All rights reserved.en_US
dc.subjectEarth and Planetary Sciencesen_US
dc.titleInternal deformation of the Shan-Thai block inferred from paleomagnetism of Jurassic sedimentary rocks in Northern Thailanden_US
dc.typeJournalen_US
article.title.sourcetitleJournal of Asian Earth Sciencesen_US
article.volume30en_US
article.stream.affiliationsKobe Universityen_US
article.stream.affiliationsUniversity of Hyogo, Kobeen_US
article.stream.affiliationsCentral Research Institute of Electric Power Industryen_US
article.stream.affiliationsEconomic Geology Divisionen_US
article.stream.affiliationsChiang Mai Universityen_US
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