2008•Geology and Mineral Resources of South ChinaRequires access
Structure and Facies of the Volcanic Rocks in the Shangtianti Area of the Northern Dabie Mountains
Feng Yao-dong
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Abstract
According to the systematic study of the distribution,stratigraphic sequence,structure and facies,and structural deformation of the volcanic rocks in the northern Dabie Mountains,it is suggested that the pyroclastic rock in the Shangtianti-Huangchengshan area is the cognate ejecta of the secondary ignimbrite.Started with the eruptive facies of the volcanic rocks,the structure and facies of the volcanic rocks in the Shangtianti-Huangchengshan area is constructed;Based on the volcanic facies,it is proposed that the division of the Chenpeng formation of the upper Cretaceous corresponds to the volcanic rhythm and the division of the volcanic layers corresponds to the facies sequence.The above study results are emphasized in the paper.