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| THE OCCURRENCE OF BORON ORE DEPOSITS AND PROSPECTING GUIDE IN EASTERN LIAONING PROVINCE |
| XU Da-di1, JING You-guang1, QIN Jian1, XUE Wei-jiang2, LIU Lai-cheng1, HOU Yue-wu1, CHEN Fu-en1 |
1. Liaoning Institute of Chemical Geological Survey, Jinzhou 121000, China;
2. Liaoning Bureau of Land and Resources, Shenyang 110032, China |
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Abstract The boron ore deposits in Eastern Liaoning region are tectonically controlled by the Dashiqiao-FengchengKuandian paleo-doming structural zone in the northeast part of North China platform. The boron-bearing series, occurred in Lieryu formation, lower Liaohe group, Proterozoic, are distributed in a W-E- and NE-trending belt of 350 km long and 60 km wide. The ore bodies are developed in serpentinized megnisio-peridotite or serpentinized Mg-rich marble of Lieryu formation, with obvious stratabound and lithological controlled characters. The wall rocks are severely altered. The tourmalinization leads a high content of B element in the wall rocks. The ratio of Ca/Mg in the serpentinized megnisio-peridotite or serpentinized Mg-rich marble varies sharply, showing a close relationship between the rocks and mineralization. The thickness of the boron-bearing series is positively correlated to the development of ore bodies. Based on the characteristics of the boron ore bodies in Eastern Liaoning, four prospective areas are predicted.
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Received: 05 July 2004
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2005, Vol. 14 
