河北地质大学学报2023，Vol.46Issue(6)：14-19,6.DOI:10.13937/j.cnki.hbdzdxxb.2023.06.002
河北良岗阜平岩群岩性特征及原岩恢复探讨
Discussion on Lithological Characteristics and Protolith Restoration of the Fuping Group in Lianggang Area,Hebei Province
侯建军 1董立帅1
作者信息
- 1. 河北省地质矿产勘查开发局第九地质大队, 河北 邢台 054000
- 折叠
摘要
Abstract
The metamorphic supracrustal rocks in Lianggang area of Hebei Province are mainly Yuanfangyan formation and Songjiakou formation of Fuping group.Based on the characteristics of lithology association in the field and the petrochemistry,geochemistry,the protolith restoration was discussed.The Yuanfangyan formation in Lianggang area of Hebei Province is a suite of gneisses with plagioclase-hornblende rocks,and magnetite quartzite is also found in some places.The protolith formation belongs to the intermediate volcanic rocks with basic volcanic rocks and terrestrial clastic sedimentary formation.The formation environment belongs to the subduction tectonic environment of island arc-foreland basin.The Songjiakou formation can be divided into three rock sections,one of which is composed of leucoleptite with a small amount of calc silicate,the other of which is composed mainly of calc silicate,and the third of which is composed mainly of marble with a small amount of metamorphic rock at the top.The protolith should be a suite of terrigenous clastic rock-carbonate rock formation,and are probably formed in the tectonic environment of island arc-foreland basin.关键词
良岗/片麻岩/原岩恢复/构造环境Key words
Lianggang/gneiss/protolith restoration/tectonic environment分类
天文与地球科学引用本文复制引用
侯建军,董立帅..河北良岗阜平岩群岩性特征及原岩恢复探讨[J].河北地质大学学报,2023,46(6):14-19,6.
