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A GENERAL REVIEW OF THE LITHOFACIES AND PALEOGEOGRAPHY IN WESTERN LIAONING DURING CHANGZHOUGOU AGE TO TUANSHANZI AGE |
GENG Zhi-hong, QU Ruo-da, WANG Ran, TAN Wen-gang |
Liaoning Institute of Geological Exploration, Dalian 116100, Liaoning Province, China |
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Abstract The deposition during Changzhougou Age to Tuanshanzi Age of Changcheng Period, started from the terrigenous clastic rock foot-plate and ended by the stable carbonate rock platform, forms a complete transgression-regression cycle in Western Liaoning Province. Based on the analysis of rock assemblage, sedimentary structure, index trace elements, paleosalinity and rare earth element ratio, a regular change of sedimentary facies is found. The river delta facies is developed in the early stage; the non-barrier coast facies and shallow sea shelf facies in the middle stage; while the barrier coast facies, open platform facies and restricted platform facies, the late stage.
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Received: 29 May 2013
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