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《Journal of Jiling University (Earth Science Edition)》 1992-02
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CHARACTERISTICS OF SINIAN AND CAMBRIAN DIAMONDIFEROUS IN JIANGSU, SHANDONG, ANHUEI PROVINCE

Zhu Lianxing(Department of Geologyg)  
The first diamendiferous conglomerates of bottom was found at Sinian (Z) and early Cambrian e-poch, east China. Conglomerates belong to Shandong Tumen formation underlain by Taishan formation. Conglomerates of Wushan , Jinshanzhai belong to early Cambrian series underlain by Tumen formation.The diamondiferous conglomerates lie on erosion surfaces and invariably occupy depressions of unconformities. Their bottoms are less regular than their tops . But it may be bedded, as in Tumen formation which attained thicknesses of a few-80m. They are formed along seathores by the concentrating effects of wave and shore action. Diamonds and gravels probably come orginally from weathered kimberlites.
【CateGory Index】: P619. 2
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