【作者】 黄春鹏；

【导师】 石准立； 石礼炎；

【作者基本信息】 中国地质大学（北京） ， 矿产普查与勘探， 2003， 博士

【摘要】 作者在攻读博士学位期间，针对福建省以往金矿研究中存在的主要问题，选择“福建省金矿成矿特征和成矿预测研究”作为博士论文研究课题。研究工作中，以国内外最新的金矿成矿理论和预测理论为学术指导思想，采用野外调研和室内综合研究相结合，宏观地质观察和微观测试相结合的研究方法。 在认真收集和消化吸收前人资料的基础上，研究和分析了福建省金矿产出的区域地质背景和构造岩浆演化特征，并对福建省区域地球物理和地球化学特征进行了总结，为研究金矿的控矿地质条件、成矿规律和成矿预测提供了翔实的基础资料。采用以容矿岩系为主体兼顾成矿环境和成矿作用的分类原则，把福建省金矿划分为变质岩型、火山岩型、沉积碎屑岩型和侵入岩内外接触带型四类。系统总结了福建省各类型金矿的成矿地质特征，建立了双旗山金矿和紫金山铜金矿等典型矿床的成矿模式，提出了变质岩型金矿和火山岩型金矿是福建省金矿找矿的主攻类型，卡林型金矿和穆龙套式金矿为潜在找矿类型。根据福建省金矿成矿机理和成矿特征把省内主要金矿划归前泥盆纪区域变质—后生热液叠加改造金矿成矿系统和燕山期构造岩浆-热液金矿成矿系统。详细研究了福建省金矿的金矿的控矿因素，提出省内金矿的形成是沉积作用、变质作用、构造作用和岩浆作用(包括火山作用)的综合结果。金矿空间分布受一定的区域深部构造单元所制约，前寒武系富含炭质的火山复理石建造是福建省金矿的主要矿源岩，金的富集成矿与燕山期花岗岩类岩浆侵入作用密切相关。总结了金矿的时空分布规律，采用同位素测年和地质分析相结合的方法研究福建省金矿的成矿年代。提出福建省内自晚太古代至第四纪的各个地质历史发展的主要阶段均有金的富集作用，但不同阶段所形成的金富集规模及特征明显有别，燕山期为福建省金矿最重要的成矿期。系统总结了省内变质岩型金矿、火山岩型金矿和侵入岩型金矿的找矿标志。在上述研究基础上，充分利用地、物、化、遥等资料进行金矿成矿远景区划，共圈出Ⅳ级成矿远景区9个，Ⅴ级成矿远景区17个。对省内四处重要的金矿Ⅳ级成矿远景区(建宁—泰宁、尤溪—德化—永泰、政和—建瓯、建阳长坪—大金山)的成矿特征及找矿方向进行了探索，对Ⅴ级成矿远景区进行分类，并概述了各成矿远景区的特征和找矿主攻类型。选择尤溪—德化—永泰、政和、泰宁和上杭四处成矿远景较佳、资料水平较高的成矿远景区(总面积2516Km~2)，利用特征分析和信息量法进行找矿靶区优选，建立了变质岩型金矿和火山岩型金矿的预测模型，优选出有利成矿单元86处。对上杭、泰宁、政和、德化—尤溪—永泰和建阳Ⅴ级成矿远景区的金资源量进行了估算，为省内下一步金矿的找矿工作提供了重要的参考依据。更多还原

【Abstract】 In this paper, the author deals with the metallogenic characteristics and forecast of gold deposits in Fujian Province. On the basis of the geologic scientific achievements yielded by forefathers, the author discusses the geologic background of Fujian Province in great detail, which provides the basic data for studying the ore control factors, the metallogenic law and the forecast of gold deposits. Mainly thinking over ore-bearing rock series and giving consideration to ore-forming process, the author divides the gold deposits in Fujian into four categories which include metamorphic rock category, volcanic rock category, sedimentary clastic rock category and igneous rock intrusive contact category. By the study of metallogenic geologic characteristics of the various gold deposits, the author sets up the ore-forming model of some typical deposits such as Shuangqishan deposit and Zhijinshan deposit etc.. It is considered that the gold deposits of metamorphic rock category and the volcanic rock category are the main gold-prospecting categories and Carlin gold deposit and Mulongtao gold deposit are the potential categories in Fujian Province. The majority of Fujian gold deposits can be put under Predevonian regional metamorphism-epigenetic thermal fluid telescoped and regenerated gold metallogenic system and Yanshan tectonic-magmatic thermal fluid gold metallogenic system. After making detailed research on ore-controlling factors, the author points out that gold deposits in Fujian resulted from the various geologic processes such as sedimentation, metamorphism, tectonism and magmatism. It is believed that the distribution of gold deposits in Fujian is controlled by regional deep-seated structure and Precambrian volcanic flysch formation containing charcoal is main gold source rock. The accumulation of gold is closely related with Yanshan granitic magma intrusion. The author summarizes the distribution law of gold depositsof Fujian in space and time and studies the metallogenic epoch using the method of isotopic geochronology and geologic analysis. It suggests that gold accumulation occurred in the every main stage of geologic history of Fujian from Late-Archaean era to Quaternary period but the scale and the feature of the gold accumulation are different in different stage and Yanshan metallogenic epoch is the most important period of mineralization of Fujian gold deposits. The ore-finding indexes of gold deposits of metamorphic rock category, volcanic rock category and intrusive igneous rock contact category have been summarized. Basing on the above research and fully using geologic, geophysical, geochemical and remote-sensing etc. data, the author determines seven order IV metallogenic provinces and seventeen order V metallogenic provinces in Fujian and discusses the minerogenetic geologic characteristics and gold-finding direction of the four important order IV metallogenic provinces(Jianning-Taining, Youxi-Dehua, Zhenghe-Jianou and Jianyang Changping-Dajinshan). All the order V metallogenic provinces are classified and the their geologic features and main gold-prospecting categories are briefly introduced. Selecting Youxi-Dehua-Yongtai , Zhenghe , Taining and Shanghang prospecting metallogenic provinces (total area 2516 km2), which have good gold-finding prospective and relatively rich data, and using the method of characteristic analysis and information extraction to seek gold prospecting target , the author builds the gold deposit forecast models of metamorphic rock category and the volcanic rock category, determines 86 good gold-finding units in Fujian and assesses the gold resource extent of the order V prospecting metallogenic provinces in Shanghang, Taining, Zhenghe, and Youxi-Dehua-yongtai and Jianyan, .which provides important reference basis for seeking gold deposits in next survey.更多还原