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| CHARACTERISTICS AND GENESIS OF THE LIPARITIC MORTAR-LAVA IN SIMUKE AREA OF NORTHERN DAXINGANLING |
| ZHAO Huan-li, HAN Yan-dong, LI Yang-chun, LIU Zhen, YU Rong-wen |
| Qiqihar Branch, Heilongjiang Institute of Regional Geological Survey, Qiqihar 161005, China |
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Abstract A special kind of liparitic mortar-lava with the texture of both lava and ignimbrite is developed in Simuke area, Northern Daxinganling.The rock is characterized by enriched Si, alkaline and LREE, Na20/K20=0.61-0.82, with relatively great negative Eu anomaly, high Rb and Th content and low Ba and K.It geochemically resembles the liparite of the same period, but with significant different in their lithofacies.They were probably both originated in post-orogenic extension environment, and might be the polymorphs formed in different emplacement of magma.
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Received: 29 April 2003
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CHEN Hui-jun, CUI Tian-ri, QIAN Cheng, LI Lin-chuan, CHEN Jing-sheng, LI Wei, WU Xin-wei, JIANG Bin, SI Qiu-liang, QIN Tao, TANG Zhen, ZHANG Yu-jin, GUO Wei. ZIRCON U-Pb GEOCHRONOLOGY OF BASHENGHE PLUTON IN NORTHERN DAXINGANLING MOUNTAINS: Geological Implications[J]. GEOLOGY AND RESOURCES, 2019, 28(5): 405-412. |
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2004, Vol. 13 
