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前言 福建马坑式铁矿系指闽西南海西拗陷区内一系列产于中石炭—下二迭统灰岩底部的层状、似层状铁矿。其以龙岩县马坑矿床规模最大,且具代表性,故名。 由于区内该含矿层位中不同程度地发育有矽卡岩,以往曾被统称为矽卡岩型矿床。七六年以来,随着寻找富铁矿地质、科研工作的深入,积累了大量资料,并提出了多种不同的成因认识,其主要有:海相火山热液沉积—变质改造、沉积—改造(再造)、复合迭生层状矿床、层控矽卡岩型等。尽管各家对矿床成因的提法不同,但对客观地质体
Foreword The Fujian-Mukeng-type iron mine refers to a series of stratified and stratiform iron mines produced at the bottom of the Carboniferous-Lower Permian limestone in the western depression of the southwestern Fujian province. Its Longyan Ma Hang deposit the largest and representative, hence the name. Since the ore-bearing strata in the area are developed to varying degrees with skarn, they have been collectively referred to as skarn-type deposits in the past. Since 1976, with the deepening of searching for iron ore rich in geology and scientific research, a great deal of information has been accumulated and many different genesis understandings have been put forward. The main causes are as follows: marine volcanic hydrothermal sedimentation-metamorphism alteration, sedimentation-reformation (Reconstructed), composite laminated bedded deposit, stratified skarn type and so on. Although different from each deposit on the origin of the formulation, but the objective geology