radiolarian

10.basement and unmetamorphosed terrigenous shallow carbonate rock in the Austria Alps -South Alps obduc-tion nappe and radiolarian silicalite in fault basins.

奥利阿卑斯—南阿卑斯仰冲叠覆体中基底变南大陆边缘浅水碳酸盐岩及断陷盆内较深水放射虫硅岩。

Study shows that the T3-J1 radiolarian cherty strata will be made such a potential target in the not too distant future.

过去将此类层列入勘探目标，研究认为此类层将会成为一个潜在油气勘探目标。