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| THE AGE OF CLASTIC ZIRCONS FROM LATE PERMIAN HONGSHAN FORMATION IN CENTRAL JILIN PROVINCE: The geological implication |
| XIN Yu-lian, NIE Li-jun, ZHOU Kai, DI Xin |
| Jilin Institute of Regional Geology and Mineral Resources Surveying, Changchun 130022, China |
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Abstract During the 1:50000 regional geology survey of Tuituan and other three sheets in Jilin Province, the longdebated pre-Mesozoic strata are re-divided into Xinxing rock formation and Hongshan formation on the basis of detailed field geological survey and previous achievement. Furthermore, with LA-ICPMS, the U-Pb age of clastic zircons in the clastic rock is dated, showing that the deposition of Hongshan formation began in Late Permian, which offers a meaningful reference to further study on the deposition time of orogenic metamorphic rock.
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Received: 13 May 2011
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2011, Vol. 20 
