西北地质2011，Vol.44Issue(2)：1-7,7.
蓟县中元古界高于庄组沉积岩系及地质意义
Sedimentary Rocks of Gaoyuzhuang Formation of Mesoproterozoic in Jixian County and Its Geological Significance
摘要
Abstract
The Proterczoic section in Jixian, Tianjin, is highly worthy of an integrated research.The Gaoyuzhuang formation plays a the key role of linking the old and new strata · Gaoyuzhuang formation is rather thick compared with the whole Proterczoic section, and it has multiple types of rocks with special origins.The main kinds of rocks include carbonate rocks, mudstone, silicalite, and quartz sandstone.The carbonate rocks are predominantly composed of pelsparite, nodular limestone, calcarenite, Molar-tooth carbonates, and other fine-grained dolomite.Silicalite includes chert and depositional quartz with textures of oolite and pebble.The quartz sandstone appears at the bottom of Gaoyuzhuang formation.The petrology shows that the depositional environment of the study area is carbonate tide-flat and shallow sea,which is also strongly affected by the volcanic materials and wind brought clastics from Gaoyuzhuang formation.Molar-tooth carbonates are expected to propel the study of the Proterczoic chronology and tectono-sedimentary evolution of North China.关键词
蓟县/中元古界/高于庄组/沉积岩系/地质意义Key words
Jixian/ Mesoproterozoic/ Gaoyuzhuang Formation/ sedimentary rocks/ geological significance分类
天文与地球科学引用本文复制引用
杨云祥,郭峰,杨友运..蓟县中元古界高于庄组沉积岩系及地质意义[J].西北地质,2011,44(2):1-7,7.基金项目
国家青年自然科学基金项目"古海洋环境与生物礁发育及兴衰的响应"(41002043)、西安石油大学科技基金项目 （41002043）
