摘要
天津蓟县雾迷山组2段沉积位于燕辽裂陷槽中心地带,时代属于中元古代,为华北区雾迷山组沉积研究的典型剖面。岩性主要为层-块状微生物泥-粉晶白云岩,其次为粉砂质泥岩。为碳酸盐岩潮坪沉积(为闭塞的陆表海环境),沉积旋回发育。微生物岩石可划分为两大类型,三个亚类。具体分为叠层状微生物白云岩:层状叠层石白云岩和波状叠层石白云岩;非叠层状微生物白云岩:凝块石白云岩。研究区白云石化严重,微生物具体的种属尚未解决。致使自身结构及有关方面的研究存在一定局限,仍不能满足今后深层油气勘探的需要,需进一步研究。
Tianjin Jixian Wumishan two sedimentary riit trough located ~ anllao heart belongs to lvlesoproterozolc age for the Northern Region Wumishan deposition studies typical profile. Lithology is mainly layer-massive microbial mud--dolomite powder, followed by silty mudstone. Of carbonate tidal flat deposits （occlusion epicontinental sea environments）, sedimentary cycle development. Microbial rocks can be divided into two types, three sub categories. Divided into specific laminar microbial dolomite： wavy layered stromatolite stromatolites dolomite and dolomite; non-laminar microbial dolomite： thrombolite dolomite. Study area dolomitization serious, unresolved attribution of specific microorganisms. Resulting structures concerned with its own research there are certain limitations, can not meet the needs of future deep oil and gas exploration, further research is needed.
出处
《四川有色金属》
2014年第1期18-22,共5页
Sichuan Nonferrous Metals
