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Ordovician
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奥陶纪,奥陶系,奥陶纪的
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详细解释：
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以下为句子列表：
英文: According to observation and study, the paleokarstifications of Ordovician could be classified into 6 periods, i.e. depositional karstification, weathering curst karstification, burial karstification, semi-burial structural karstification, second burial k
中文: 研究表明，皖北奥陶系古岩溶可划分为沉积岩溶作用期、风化壳岩溶作用期、埋藏岩溶作用期、构造岩溶作用期和二次埋藏岩溶作用期；其岩溶类型主要有沉积岩溶、风化壳岩溶、埋藏岩溶或压释水岩溶和构造岩溶或热水岩溶四种类型；其岩溶岩包括岩溶沉积岩和岩溶改造岩两个大类，并可进一步划分出8个亚类和5个子亚类。
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英文: An angular unconformable contact was for the first time found between the Middle Jurassic Bathonian Stage and its underlying pre-Ordovician metamorphosed basement in the Chawola district, in Nyainrong County.
中文: 摘要在聂荣县查吾拉区一带首次发现中侏罗统巴通阶与下伏前奥陶系基底变质岩系之间呈角度不整合接触。
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英文: Compared to poststack time migration, prestack time migration results in clear images of fractures and cavities in the Ordovician carbonate rocks, and definite unconformities at top of the Ordovician.
中文: 叠前时间偏移与叠后时间偏移结果相比，具有丰富的奥陶系碳酸盐岩裂缝－溶孔内幕，清晰的奥陶系顶不整合面。
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英文: From the Cambrian to the early Middle Ordovician, the Cambrian radiolaria and the Early Ordovician conodonts of the Erlangping trough in the northern part of EQM, and the Cambrian trilobites and Early Ordovician conodonts as well as cephalopods of the nor
中文: 在寒武纪至中奥陶世早期，东秦岭北部二郎坪海槽的寒武纪放射虫和早奥陶世牙形石与东秦岭南部浙川陆棚北部的寒武纪三叶虫、早奥陶世牙形石和头足类属华南生物省，而浙川陆棚南部的寒武纪三叶虫和早奥陶世牙形石属于华南生物省，兼有华北生物省分子。
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英文: From the late Middle Ordovician to the end of Ordovician, the cephalopods, gastropods and corals in the Erlangping trough, and the conodonts, coral, brachiopods, cephalopods as well as trilobites in the Xichuan shelf were from the North China Province.
中文: 在中奥陶世晚期至奥陶纪末，二郎坪海槽的腹足类、头足类和珊瑚与浙川陆棚的牙形石、珊瑚、腕足类、头足类和三叶虫均属华北生物省。
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