跑马铅锌矿为产于下寒武统麦地坪白云岩中的层控矿床,主要受层间破碎带控制, 有两个含矿层,多呈层状产出.
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Development Pattern and Distribution Rule of Source Rock of Cambrian-Ordovician in Tarim Basin
塔里木盆地寒武系&奥陶系烃源岩发育模式及分布规律
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The Middle Cambrian noncalcareous algse are common fossils in the Burgess Shale of British Columbia.
贵州台江凯里组的非钙质藻类化石在我国中寒武统尚属首次发现,国外主要见于北美.
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It occurs in the lime dolomite and dolomite lime of Cambrian Zhushadong Formation.
该类金矿赋存于寒武纪朱砂洞组灰质白云岩和白云质灰岩中.
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This is the first time in the study and mapping of the Cambrian in South China.
这种定量的岩相古地理图在中国南方寒武纪还是首次出现.
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湖南石门地区中上寒武统为一套浅海碳酸盐岩沉积,以局限台地潮坪沉积力主, 其次为浅滩沉积.
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