NEW GEOLOGICAL EVIDENCES FOR THE FORMING AGE OF WUSINIHEI OPHIOLITIC MÉLANGE IN INNER MONGOLIA
BAO Qing-zhong1, ZHANG Chang-jie1, WU Zhi-li2
1. Shenyang Institute of Geology and Mineral Resources, Shenyang 110032, China; 2. Inner Mongolia Institute of Geology and Mineral Resources Exploration, Hohhot 010010, China
Abstract：Arguments remain on the structure environment and forming age of the Hegenshan-Wusinihei ophiolitic mélange. It used to be considered the ultramafic intrusive rock into the Permian Gegenaobao formation, covered unconformably by Zhesi formation. Since 1980s, with the discovery of radiolarian fossils in associated silicalite, the ophiolitic mélange was dated Early-Middle Devonian or earlier. During field survey, the authors found paleo-weathering crust on the top of the rock series and disconformity between the ophiolitic mélanges and Gegenaobao formation of Late Carboniferous-Early Permian. Therefore the ophiolitic mélange should be formed before Late Carboniferous.
鲍庆中, 张长捷, 吴之理. 内蒙古乌斯尼黑蛇绿混杂岩带形成时代的地质新证据[J]. 地质与资源, 2011, 20(1): 16-20.
BAO Qing-zhong, ZHANG Chang-jie, WU Zhi-li. NEW GEOLOGICAL EVIDENCES FOR THE FORMING AGE OF WUSINIHEI OPHIOLITIC MÉLANGE IN INNER MONGOLIA. GEOLOGY AND RESOURCES, 2011, 20(1): 16-20.
2011, Vol. 20 
辽公网安备 21010502000112号