| 兴神磷矿含磷岩系地球化学特征与沉积环境分析 |
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| 引用本文： | 郑文忠,东野脉兴. 兴神磷矿含磷岩系地球化学特征与沉积环境分析[J]. 化工矿产地质, 1994, 0(2) |
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| 作者姓名： | 郑文忠 东野脉兴 |
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| 作者单位： | 化学工业部化学矿产地质研究院 |
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| 摘 要： | 兴神磷矿含磷岩系各类岩（矿）石Ｓｒ／Ｂａ，Ｍｎ／Ｆｅ，Ｃｏ／Ｎｉ，Ａｓ，Ｃｅ／Ｃｅ“，Ｅｕ／Ｅｌｌ刮，异常Ｃｅ，６“Ｃ，６１‘Ｏ等地球化学特点表明，含磷岩系沉积早期受冰）Ｉ淡水影响形成合锰白云岩；中期海馒规模扩大，水体加深，在半封闭的低能还原一弱氧化环境中．生物大量繁殖形成磷块岩堆积；晚期出现海退，在大气淡水影响下形成混合岩化白云岩结束整个成磷历史。
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| 关 键 词： | 含磷岩系，微量元素，REE，氧碳稳定同位素，沉积环境 |
ANALYZE ON GEOCHEMICAL CHARACTER AND SEDIMENTARY ENVIROMENT FOR P-BEARING ROCK SERIES IN XINGSHEN PHOSPHATE DEPOSIT |
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| Abstract: | Abstract The geochemical character of every kind of rocks(ores):Sr/Ba, Mn/Fe, Co/Ni,As,Ce/Ce,Eu/Eu,anomalous Ce,δi3C and δ18O in P- bearing rock sereis in Xingshen phosphate deposit show that:In the early sedimentary stage of the p-bearing rock series,manganiferous dolomite was formed by the effection of glacier fresh water;in the middle sedimentary stage,since the developing of marine invasion and the deepening of water body,phosphorite had been accumulated due to bred a great deal of organism in the semi-enclosed low reduction-blightly oxidation enviroment; in the late sedimentary stage,migmatized dolomite was formed result from the air fresh water effection and the marine regression,and then,the p-forming history ended. |
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