| 川西北地区早志留世瘤状灰岩的类型,成因及意义 |
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| 引用本文： | 蓝光志,张廷山.川西北地区早志留世瘤状灰岩的类型,成因及意义[J].西南石油学院学报,1994,16(3):1-5. |
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| 作者姓名： | 蓝光志 张廷山 |
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| 摘 要： | 根据本区“瘤状灰岩”的分布、成分及特征，作者将其划分为Ａ、Ｅ、Ｃ三种类型。Ａ、Ｂ型的成因与蓝绿藻的活动有密切关系，与生物礁、丘一起，沉积于浅缓坡位置．Ｃ型瘤状灰岩的成因与压溶作用有关，处于深缓坡位置。本区瘤状灰岩具有一定的含油气性．
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| 关 键 词： | 碳酸盐岩 瘤状灰岩，分类 早志留世 川西北地区 |
Classification, Genesis and Significance of Nodular Limestone of Early Silurian in NW Sichuan |
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| Lan Guangzhi.Classification, Genesis and Significance of Nodular Limestone of Early Silurian in NW Sichuan[J].Journal of Southwest Petroleum Institute,1994,16(3):1-5. |
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| Authors: | Lan Guangzhi |
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| Affiliation: | Lan Guangzhi (Department of Scientific Research)Zhang Tingshan (Department of Petroleum Exploration) Gao Weidong (Office of SW Petroleum Institute) |
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| Abstract: | According to the distribution, components and characteristics of the nodular limestoneof early Silurian in NW Sichuan, the authors have divided it into three patterns A,B,C. Thenodular limestone of patterns A and B, the formation of which has much to do with the action of blue-green algae, deposited on shallow ramp ith reefs and bioherms while the nodular limestone of pattern C deposited of deep ramp, the formation of which has close relationwith the effect of pressure-dissolution.The nodular limestone of these three patterns in this area has oil-gas bearing quality toa certain degree. |
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| Keywords: | Carbonate rock Nodular limestone Classification Early Silurian NWSichuan |
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