| 陕西岚皋地区早志留世滔河口组的厘定及其意义 |
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| 引用本文： | 周小康,张月树.陕西岚皋地区早志留世滔河口组的厘定及其意义[J].陕西地质,1996(1). |
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| 作者姓名： | 周小康 张月树 |
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| 作者单位： | 陕西地质矿产勘查开发局第七地质队!长安县，710100 |
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| 摘 要： | 陕西南部北大巴山地区早志留世滔河口组碱基性火山岩，分布层位稳定，岩性标志特征。根据火山岩岩石类型和地层学以及古生物组合特征对其岩石地层单位重新进行了厘定，研究了火山岩的成因，探讨了火山岩形成的机制和构造环境。
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| 关 键 词： | 早志留世 拉张裂陷 滔河口组 厘定 意义 陕西岚皋 |
DETERMINATION OF THE EARLY SILURLAN TAOHE FORMATION IN THE LANGAO REGION, SHAANXI PROVINCE AND ITS SIGNIFICANCE |
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| Zhou Xiaokang and Zhang Yueshu.DETERMINATION OF THE EARLY SILURLAN TAOHE FORMATION IN THE LANGAO REGION, SHAANXI PROVINCE AND ITS SIGNIFICANCE[J].Geology of Shaanxi,1996(1). |
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| Authors: | Zhou Xiaokang and Zhang Yueshu |
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| Abstract: | Alkalic volcanic rocks of the Early Silurian Taohekou Formation are distributed in the northern Dabashan area of the southern Shaanxi, with a stable horizon and evidently lithological indicators. Ascording to characteristic assemblages of the volcanic rock type, stratigraphy and paleobiofogy, the determination of the lithostratigraphic unit has been made again. The origin, diagenesis and the tectonic environment of the volcanic rocks are also discussed in this paper. |
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| Keywords: | Early Silurian epoch Tensional rift Taohekou Formation Determination Significance Langao of Shaanxi |
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