Volcanogenic-sedimentary origin of magnetite ores of the Urals
Volcanogenic-sedimentary origin of magnetite ores of the Urals
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DOI：
10.1080/00206818209467200
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发表时间：
1982-12
影响因子：
2.6
通讯作者：
Ya. N. Belevtsev
中科院分区：
文献类型：
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作者：
Ya. N. Belevtsev
从1975年到1978年，我们进行了一系列调查，以确定乌拉尔中部和南部火山成因-沉积组合的找矿前景。研究了夕卡岩-磁铁矿类型铁矿田和矿床的构造特征，矿体围岩序列的组合、相和岩性分析，以及岩石和矿石的岩石化学和地球化学研究。这些研究使我们能够确定乌拉尔地区著名的夕卡岩-磁铁矿矿床与火山成因沉积过程及其后续变质作用之间存在成因联系的一些特征。下面，我们将批判性地讨论乌拉尔地区夕卡岩-磁铁矿矿床定位的主要因素，作为矿石接触交代成因的证据。然后，我们将尝试证明这些矿床的火山成因-沉积成因。
We conducted a series of investigations from 1975 to 1978 to determine the ore prospects of the volcanogenic-sedimentary associations of the Central and South Urals. We studied the characteristics of the structures of the ore fields and deposits of skarn-magnetite type of iron; associational, facies, and lithologic analyses of the ore-surrounding sequences; and petrochemical and geochemical studies of the rocks and ores. These studies enabled us to identify a number of features indicating a genetic association between the well-known skarn-magnetite deposits of the Urals and the processes of volcanogenic sedimentation and their subsequent metamorphism.Below, we shall critically discuss the principal factors in the localization of the skarn-magnetite deposits of the Urals, advanced as proofs of the contact-metasomatic origin of the ores. We will then follow with an attempt to justify a volcanogenic-sedimentary origin for these deposits.