| 浙江江山砚瓦山组瘤状灰岩的成因 |
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| 引用本文： | 郭福生,梁鼎新.浙江江山砚瓦山组瘤状灰岩的成因[J].矿物岩石,1993,13(3):74-80. |
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| 作者姓名： | 郭福生 梁鼎新 |
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| 作者单位： | 华东地质学院，华东地质学院 抚州 344000，抚州 344000 |
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| 摘 要： | 浙江江山地区砚瓦山组瘤状灰岩的结构构造及其形成机理复杂多样,一般可划分出五种岩石类型,即压扁瘤状泥灰岩、揉皱角砾状泥灰岩、压溶瘤状灰岩、干裂角砾状灰岩和粗砾屑灰岩。瘤状灰岩形成于碳酸盐台地浅水部位,水体为半浑浊。其发育程度及其层位的区域变化规律表明,泥质浑水系来自海盆东侧的华夏古陆。
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| 关 键 词： | 瘤状灰岩 沈积构造 成因 砚瓦山组 |
ON THE ORIGIN OF NODULAR LIMESTONE IN YANWASHAN FORMATION IN JIANGSHAN,ZHEJIANG |
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| Guo Fusheng Liang Dingxin.ON THE ORIGIN OF NODULAR LIMESTONE IN YANWASHAN FORMATION IN JIANGSHAN,ZHEJIANG[J].Journal of Mineralogy and Petrology,1993,13(3):74-80. |
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| Authors: | Guo Fusheng Liang Dingxin |
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| Abstract: | The nodular limestone of Yanwashan Formation in Jiangshan, Zhejiang has many different kinds of textures and structures which shows different mechanisms of formation. The authors divide it into five kinds of rocks:flatted-nodular marl,slumped-breccia marl, pressure solution-nodular limestone,drying crack-breccia limestone and wormkalk. Nodular limestone was formed in the shallow-water zone in the carbonate platform,and the water was turbid with mud. The regional variety of development degree and horizon shows that the turbid-water with mud is from Cathysia on the east of Zhejiang-Anhui Sea Basin. |
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| Keywords: | nodular limestone sedimentary structure |
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