middle silurian 中文意思是什麼
middle silurian
解釋
中志留世-
2. tazhong ancient uplift originated from normal fault in paleozoic, hydrocarbon formed in ordovician period, structure reverse made tazhong uplift form from the middle ordovician period to the late ordovician period, and it provided geologic background for the deposit of silurian - devonian stratum. tazhong uplift formed at the end devonian, ancient reservoir was destroyed and asphaltum sandstone formed, structure deformation more destroyed ancient reservoir in early permian, after then the major of structure deformation is regulation
塔中隆起源於早古生代拉張背景下的正斷層，寒武-奧陶紀為其烴源巖形成的重要時期；早奧陶世末-晚奧陶世末的構造反轉是塔中隆起的主要形成期，同時也為志留系形成地層及復合圈閉提供了古地理背景；志留?泥盆紀塔里木盆地南北緣均轉為活動大陸邊緣，形成了大量的斷裂和不整合；泥盆紀末塔中鼻狀隆起基本定型，古油藏遭受破壞，形成了瀝青砂巖；早二疊世晚期的構造變形使古油藏遭受進一步的破壞；二疊紀后構造變動主要以調節為主。 -
From the middle silurian to the early devonian, no fossils were found in the eqm, which probably indicates that the eqm was a land and was connected with the north china block
在中志留世至早泥盆世，東秦嶺未發現古生物化石，很可能為陸地，並與華北陸塊聯為一體。 -
The results show that the ore - bearing strata occur in variegated strata of middle silurian quannaogoushan formation, that the metallogenic materials might have been derived from the land area, and the metallogenic epoch is middle silurian
結果表明，天鹿銅礦床賦存於中志留統泉腦溝山組雜色巖層中，其成礦物質來自陸源，主成礦期為中志留世，屬沉積砂巖型銅礦床。
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