A lot of radiolarian cherty is found in the T3-J1 strata in Eastern Heilongjiang Province during recent geological survey, although previous exploration was not targeted at these strata for oi.
在勘探工作中发现黑龙江东部晚三叠世—早侏罗世存在大量的放射虫硅质岩地层。
A lot of radiolarian cherty is found in the T3-J1 strata in Eastern Heilongjiang Province during recent geological survey, although previous exploration was not targeted at these strata for oi.
在勘探工作中发现黑龙江东部晚三叠世—早侏罗世存在大量的放射虫硅质岩地层。
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