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地质科学  1990, Vol. Issue (2): 149-157    DOI:
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震旦纪大塘坡期锰矿的内碎屑结构和重力流沉积
赵东旭
中国科学院地质研究所
INTRACLASTIC STRUCTURES AND GRAVITY FLOW SEDIM-ENTATION OF RHODOCHROSITE ORE IN SINIAN DATANGPO FORMATION
Zhao Dongxu
Institute of Geology, Academia Sinica
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摘要 大塘坡组锰矿石由菱锰矿内碎屑和碳泥质基质组成。菱锰矿内碎屑是浅水沉积环境中的锰质沉积物破碎而成。它们沿着盆地斜坡流入深水地区与碳、粘土和粉砂沉积在一起形成内碎屑菱锰矿。一部分矿石有递变层理,具有浊流沉积特征。
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赵东旭
关键词菱锰矿   内碎屑   递变层理   浊流沉积   震旦纪     
Abstract: The manganese deposits of Sinian Datangpo formation are mainly distributed in the northeastern Guizhou, southeastern Sichuan, western Hunan and northwestern Hubei provinces. The manganese-bearing series consists of lithic sandstone, black carbonaceous mudstone containing manganese ore bed, yellowish-brown mudstone and sandstone in ascending order. The manganese deposits occurred always in the large or small deep-water sedimentary basins.The manganese ore consists of the rhodochrosite intraclasts and carbonaceous pelitic matrix. The intraclasts were formed from the fragments of manganese deposits containing mineralized algae remains in shallow-water sedimentary environments. The matrix or adjoining rocks composed of organic carbon, clay and silt were precipitated in deep-water, reducing sedimentary environments. Therefore, the rhodochrosite intraclasts have probably come from the shallow-water zones on basin slopes. They flowed along the basin slopes into the deep-water area, and deposited together with more or less amount of carbon, clay and silt to form the intraclastic rhodochrosite ores. Some part of the ores show their graded bedding formed from intraclasts, and hence is characterized by turbidity current deposition.
Key wordsSinian Datangpo formation   rhodochrosite   intraclasts   graded bedding   tu-rbidity current deposition   
收稿日期: 1988-01-01;
基金资助:《震旦纪大塘坡期含锰沉积建造》研究报告
引用本文:   
赵东旭. 1990, 震旦纪大塘坡期锰矿的内碎屑结构和重力流沉积. 地质科学, (2): 149-157.
Zhao Dongxu. INTRACLASTIC STRUCTURES AND GRAVITY FLOW SEDIM-ENTATION OF RHODOCHROSITE ORE IN SINIAN DATANGPO FORMATION[J]. Chinese Journal of Geology, 1990, (2): 149-157.
 
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[1] 张宪依, 王炳山, 李元仲, 杨蕊英. 鲁西枣庄—临沂地区新元古界震碛岩的主要特征[J]. 地质科学, 2006, (3): 489-499.
[2] 陈孟莪, 陈其英, 萧宗正. 试论宏体植物的早期演化[J]. 地质科学, 2000, (1): 1-15.
[3] 李文厚, 周立发. 苏红图—银根盆地白垩纪沉积相与构造环境[J]. 地质科学, 1997, (3): 387-396.
[4] 谢国刚, 李均辉, 李武显, 唐红峰, 李惠民, 周新民. 庐山前震旦纪岩石中锆石U—Pb法定年与其地质意义[J]. 地质科学, 1997, (1): 110-115.
[5] 李任伟, 张淑坤, 雷加锦, 沈延安, 陈锦石, 储雪蕾. 震旦纪地层黄铁矿硫同位素组成时-空变化特征及扬子地块与晚元古超大陆关系的论证[J]. 地质科学, 1996, (3): 209-217.
[6] 陈孟莪, 萧宗正, 袁训来. Beltanelloides podolicus 在中国上震旦统首次发现[J]. 地质科学, 1993, (4): 312-316.
 
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