**二叠纪地层及标志化石图集

Discovery of Permian tuff from the northern margin of the Qaidam Basin and its geological implications

LIU Jia, Q Tao - 地质力学学报, 2023 - journal.geomech.ac.cn
Whether the Permian sedimentary records are still preserved in the northern Qaidam Basin
is an open issue with various viewpoints. Most regional geological correlations imply that …
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[PDF][PDF] **二叠纪岩石地层划分和对比 ①

申博恒， 沈树忠， 侯章帅， 吴琼， 张水昌， 张斌… - 地层学杂志, 2021 - researchgate.net
二叠系是古生界最后一个系, 自下而上包括乌拉尔统, 瓜德鲁普统和乐**统, 进一步划分为9 个阶.
**各块体都发育有很好的二叠纪地层, 本文依据最新研究成果与已有地层资料 …
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[HTML][HTML] 柴达木盆地北缘早二叠世凝灰岩的发现及其地质意义

刘佳， 钱涛 - 地质力学学报, 2023 - journal.geomech.ac.cn
柴达木盆地北缘地区是否存在早二叠世沉积记录依旧是一个悬而未决的问题.
现有区域地质资料普遍认为二叠系并未沉积或已完全被剥蚀. 这分歧起源于对现有的古生物化石 …
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