detrital

1.The sediments are detrital and largely of greywacke facies.

沉积为碎屑质，大部属于杂质砂。

2.Glauconite, detrital carbonate skeletal debris, marine fossils, and collophane are commonly present.

绿石、碳酸盐骨骸碎屑、化石和胶磷矿普遍现。

3.The albite component increases while anorthic component decreases in detrital plagioclase.The plagioclase turned into an end - member component of albite.

斜长石碎屑中钠长石渐增多，钙长石渐减少，最终形成纯钠端元的钠长石。

4.5) The upper subphase of flood eruption phase and the hot detrital flow subphase of the explosive phase are proposed as the most favorable reservoir phase trends;

(5)提了喷溢上部亚、爆发热碎屑流亚是最有利的火山储层发育带。