| 浙江长兴地区二叠纪与三叠纪之交牙形石动物群及地层意义 |
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| 引用本文： | 张克信. 浙江长兴地区二叠纪与三叠纪之交牙形石动物群及地层意义[J]. 地球科学, 1987, 0(2) |
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| 作者姓名： | 张克信 |
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| 作者单位： | Wuhan College of Geology，Wuhan 430074 |
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| 摘 要： | 本文把采自华南浙江长兴煤山二叠系与三叠系界线剖面的牙形石动物群从老至新分为三个带:1.Gondolella subcarinata-G·wangi组合带;2.G.changxingensis-G.deflecta组合带;3.Anchignathodus parvus带。将煤山剖面的二叠系与三叠系界线划在2、3组合带之间。并初步探讨了长兴地区长兴期至早格里斯巴赫期的牙形石分异度与沉积环境变迁。
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| 关 键 词： | 二叠纪 三叠纪 牙形石 地层界线 分异度 |
THE PERMO-TRIASSIC CONODONT FAUNA IN CHANGXING AREA,ZHEJIANG PROVINCE AND ITS STRATIGRAPHIC SIGNIFICANCE |
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| Zhang Kexin. THE PERMO-TRIASSIC CONODONT FAUNA IN CHANGXING AREA,ZHEJIANG PROVINCE AND ITS STRATIGRAPHIC SIGNIFICANCE[J]. Earth Science-Journal of China University of Geosciences, 1987, 0(2) |
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| Authors: | Zhang Kexin |
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| Abstract: | The Permo-Triassic conodont fauna reported in this paper contains 15 genera and 30 species. They were collected from the Meishan section of the Changxing area in Zhejiang province.Three conodont zones may be recognized as follows ( in ascending order ) : ( 1 ) Gondolella subcarinata-G. wangi zone, (2)G. changxingensis-G.deflecta zone, (3) Anchignathodus parvus zone.The Permo-Triassic boundary of Meishan section is drawn between the Gondolella changxingensis-G deflecta zone and the Anchignaihodus parvus zone. The changes of the sedimentary facies and the diversity of conodont fauna of Changxingian to Early Griesbachian in Changxing area are also preliminarily discussed here. |
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| Keywords: | Permian Period Triassic Period conodont stratigraphic boundary diversity |
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