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青海南部治多—杂多地区二叠系阳新统上部层位的发现和尕日扎仁组、索加组的建立 被引量:4
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作者 牛志军 段其发 +3 位作者 王建雄 白云山 涂兵 卜建军 《地质通报》 CAS CSCD 北大核心 2006年第1期176-182,共7页
在青海南部治多—杂多一带1∶25万地质填图中,发现二叠系阳新统上部层位的类动物群,新建尕日扎仁组和索加组。尕日扎仁组以泥质岩、细粒石英砂岩为主,夹粉砂岩、灰岩、玄武岩,属陆棚相,产少量非有孔虫、腕足类、双壳类化石,地质时代为... 在青海南部治多—杂多一带1∶25万地质填图中,发现二叠系阳新统上部层位的类动物群,新建尕日扎仁组和索加组。尕日扎仁组以泥质岩、细粒石英砂岩为主,夹粉砂岩、灰岩、玄武岩,属陆棚相,产少量非有孔虫、腕足类、双壳类化石,地质时代为阳新世孤峰期晚期,与下伏九十道班组整合接触。索加组分为2个段,下段以透镜状滨岸相底砾岩为特征,上段以含燧石条带及结核的台地相灰岩为特征,产类、非有孔虫、腕足类等,地质时代为阳新世冷坞期,与下伏尕日扎仁组平行不整合接触。 展开更多
关键词 尕日扎仁组 索加组 二叠纪 阳新统 青海南部
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Chronostratigraphic Subdivision and Correlation of the Permian in China 被引量:15
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作者 JIN Yugan SHANG Qinghau +2 位作者 WANG Xiangdong WANG Yue SHENG Jinzhang 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 1999年第2期127-138,共12页
Since the principle of multiple stratigraphic classification has been widely accepted by Chinese stratigraphers, various new Permian chronostratigraphic units have been proposed in China, and they need to be redefined... Since the principle of multiple stratigraphic classification has been widely accepted by Chinese stratigraphers, various new Permian chronostratigraphic units have been proposed in China, and they need to be redefined. The establishment of a new global chronostratigraphic scheme of the Permian, compilation of Permian lithostratigraphic units and updating of Permian biostratigraphic sequences of China makes it possible to present a revised regional chronostratigraphic succession for the Permian System in China. This succession consists of three series and eight stages. The Chuanshanian Series includes two stages, the Zisongian and the Longlinian; the Yanghsinian (Yangxinian) Series is subdivided into the Chihsian (Qixiaan) and the Maokouan Subseries, of which the former comprises the Luodianian and the Xiangboan Stage, and the latter the Kufengian (Gufengian) and the Lengwuan Stage; the Lopingian (Lepingian) Series includes the Wuchiapingian (Wujiapingian) and the Changhsingian (Changxingian) Stage. 展开更多
关键词 CHRONOSTRATIGRAPHY PERMIAN Chuanshanian yanghsinian LOPINGIAN China
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