摘要
作者根据古生物、指相元素、沉积物的颜色、沉积序列、岩石结构、沉积构造等特征,对苏锡地区泥盆系茅山群的沉积环境进行了分析,提出茅山群形成于河控三角洲沉积环境。
In the Devonian Maoshan Group in Suzhou-wuxi,there is very little fossils except a little fragments of Pisces and microflora.After correlation with the same elements in the different salinity ocean with different salinity,the facies elements such as Sr,Ba,Ga,V,Ni,B etc.ind- icates that the salinity of sedimentary water is 4-7 per cent.Additionally,there are two suits of reversed sedimentary sequences in the Group with middle psephicity and sorting index The results of sizing shows that saltation is the main transport type.The discrete analysis sh- ows that it has 73 per cent possability to be the sediments of estuarine.There also develops ripple marks,flaser bedding and lenticular bedding and wedge-shaped cross bedding.Therefo- re,the Devonian Maoshan Group is deposited in the river-controlling delta environment.
出处
《江苏地质》
1990年第1期25-28,共4页
Jiangsu Geology
