准噶尔盆地吉木萨尔凹陷芦草沟组混合细粒岩沉积微相
李书琴,印森林,高阳,张方,李映艳,彭寿昌

Study on sedimentary microfacies of mixed fine-grained rocks in Lucaogou Formation, Jimsar Sag, Junggar Basin
Shu-qin LI,Sen-lin YIN,Yang GAO,Fang ZHANG,Ying-yan LI,Shou-chang PENG
表1 芦草沟组6类岩性矿物和元素含量
Table 1 Contents of six types of lithological minerals and elements in Lucaogou Formation
黏土/%长石/%石英/%白云石/%K/%Al/%Si/%Ca/%Mg/%
泥岩范围>2020~3510~20<155~715~2060~70<10<5
平均值27.231.120.18.45.417.3662.54.9
长石岩屑砂岩范围5~20>3020~40<103~515~2560~75<10<5
平均值14.543.3285.93.715.96843.7
粉细砂岩范围<1025~35>40<5<310~15>65<5<5
平均值7.930.547.71.92.613753.41.03
云屑砂岩范围0~2010~5020~4010~25<310~1555~655~206~10
平均值113625.917.62.210.862.111.68.3
砂屑云岩范围0~20%10~4010~3020~401~45~1040~6010~3510~15
平均值11.232.521.629.81.77.9852.7619.412.8
泥晶白云岩范围0~15%0~30>20>40<2.5<520~50>20%>15
平均值6.821.616.949.70.974.439.130.619