Geochemistry of Middle Triassic Radiolarian Cherts from Northern Thailand:Implication for Depositional Environment |
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| Authors: | Hathaithip Thassanapak |
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| Institution: | Hathaithip Thassanapak Department of Biology,Faculty of Science,Mahasarakham University,Mahasarakham 44150,Thailand Mongkol Udchachon* Palaeontological Research and Education Centre,Thailand Chongpan Chonglakmani School of Geotechnology,Institute of Engineering,Suranaree University of Technology,Nakhon Ratchasima 30000,Thailand Qinglai Feng State Key Laboratory of Geological Processes and Mineral Resources,China University of Geosciences,Wuhan 430074,China |
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| Abstract: | Geochemical analysis reveals that Middle Triassic radiolarian cherts from northern Thailand,including Chiang Dao,Lamphun and Den Chai,are of biogenic origin.These cherts present slightly high SiO2 content which was possibly modified by diagenetic alteration and migration processes as indicated by negative correlation between SiO2 and most of the other major elements.The relatively high content of Cr,Zr,Hf,Rb and Th and high positive correlation of these elements with Al and Ti from the majority of cherts su... |
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| Keywords: | Triassic geochemistry radiolarian chert depositional environment northern Thailand |
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