| 陕西商南县汪家店地区上泥盆统王冠沟组生物灰岩沉积特征 |
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| 引用本文： | 刘贻军, 叶俭. 陕西商南县汪家店地区上泥盆统王冠沟组生物灰岩沉积特征[J]. 沉积与特提斯地质, 1997, 17(2): 42-46. |
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| 作者姓名： | 刘贻军 叶俭 |
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| 作者单位： | 1 中国地质大学; 2 西安地质学院资源系 |
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| 摘 要： | 汪家店地区上泥盆统王冠沟组(Dsw)发育了两种生物灰岩类型;生物障积灰岩和生物粘结灰岩。根据生物生态特征、造礁方式和岩石产出形态,可以划分为层状礁和生物丘,它们形成在不同的水动力条件下,具有不同的沉积环境。总体上都形成于水体较浑浊、较深的潮下低能环境中。
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| 关 键 词： | 生物灰岩 层状礁 生物丘 沉积特征 王冠沟组 商南汪家店地区 |
SEDIMENTARY CHARACTERISTICS OF BIOGENIC LIMESTONES IN THE UPPER DEVONIAN WANGGUANGOU FORMATION IN THE WANGJIADIAN REGION,SHANGNAN,SHAANXI |
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| Liu Yijun, Ye Jian. SEDIMENTARY CHARACTERISTICS OF BIOGENIC LIMESTONES IN THE UPPER DEVONIAN WANGGUANGOU FORMATION IN THE WANGJIADIAN REGION,SHANGNAN,SHAANXI[J]. Sedimentary Geology and Tethyan Geology, 1997, 17(2): 42-46. |
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| Authors: | Liu Yijun Ye Jian |
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| Affiliation: | 1 China University of Geoscience,Beijing; 2 Xi'an College of Geology |
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| Abstract: | Two types of biogenetic limestones are well developed in the Upper Devonian Wang-guangou Formation in the Wangjiandian region, Shangnan, Shaanxi. They are bafflestoneand bindstone,which may be subdivided,according to ecological characteristics,reef-build-ing modes and occurrences,into bedded reefs and bioherms produced in distinctive environ-ments under different hydrodynamic conditions. Commonly,they were all formed in moreturbid-and deeper-water subtidal low-energy environments, |
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| Keywords: | biogenic limestone bedded reef bioherm sedimentary characteristic Wangguangou Formation Wangjiadian region in Shangnan |
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