稀有金属经济地质的研究进展

近年来国际市场上铜,金等主要金属价格狂跌不止,但稀有金属由于在电子,航空,陶瓷,冶金等领域中的应用越来越广而形势看好,并推动了矿床学界对稀有金属矿床的研究,稀有金属矿床类型除了微晶岩型外,还包括火山岩容矿型,花岗岩容矿型,碱性－超镁铁质及碳酸岩杂岩体型,地幔流体交代型,细晶岩型等多种类型。在找矿方法上,除了常规地质方法外,物探方法和成因矿物学方法也被广泛应用,在成因研究方面提出了一些新模式,如非平     

Regional Environmental Differentiation in China Sincethe Mid-Pleistocene Inferred from Lake Recordsand Its Relation with East Asian Monsoons

Comparative study of long lake records in different regions in China can provide some significant information about the regional differentiation of the environment and Asian monsoon activities. However, intensively studied lacustrine cores with a span of a few hundred thousand years are very rare in China. The available examples are only three long cores from the Zoige basin in the eastern Qinghai-Tibet plateau, the Qaidam basin in the northern Qinghai-Tibet plateau and the Dianchi basin in the Yunnan plateau respectively. The results show that the regional environmental differentiation since the Mid-Pleistocene involved three stages, i.e. 780-480, 480-160, 160-0 ka B.P. In each of the three stages different regions of China had their own distinctive environmental characteristics, indicating that the uplift of the Qinghai-Tibet plateau played a major role in the environmental differentiation process.     

壳幔化学不均一性与块体地球化学边界研究

壳幔派生岩石的多元同位素体系研究表明,地球存在块体的化学不均一性,可划分出地球化学省,并以地球化学急变带作为边界。全球总体上分成东冈瓦纳（如华夏与青藏—印支）、西冈瓦纳、太平洋（如佳木斯、中蒙古、辽胶渤、北疆—南戈壁）与劳亚（如华北、中朝、兴安、塔里木等）四种类型的地球化学省。地球化学急变带与地球物理场变化存在密切关系。在构造上,地球化学急变带可分成构造显性与构造隐性两种类型。应用深、浅构造立交模型及其相互转化可对两种类型地球化学急变带的出现作出较合理的解释。地球化学急变带,特别是急变带的转折端对超大型矿床和成矿密集区的分布有密切控制作用;显性急变带主要表现为与动力变质和岩浆活动有关的改造成矿作用,隐性急变带主要表现为火山与热水沉积成矿作用。具有工业意义的油气田均位于构造隐性急变带与中新生代盆地的立交地段。     

中国辽吉地区早元古代大型—超大型硼矿床的形成条件

超大型矿床的出现、形成与其所在的地质背景有关。在全新构造观的指导下论证了大型－超大型硼矿床形成时的构造环境及其它基本特点,把矿床的成生与地壳演化结合起来,并重视了深断裂对成矿的控制作用。通过幔壳长期作用,使深部巨量成矿物质以三种方式带入成矿热卤水盆地,在一定的自然地理与物理化学条件下矿质沉淀、富集形成大型与超大型硼矿床。在上述成矿条件研究的基础上,建立了矿床的地质成因模式。     

冀东长城式金矿赋金角砾状岩石成因初探

冀东地区新发现一批产在中元古代碳酸盐岩层中的金矿床（点）,文中对该类矿床的容矿围岩特征及其成因、产出的区域构造背景进行了讨论,提出容矿角砾岩是液压致裂角砾岩,是一种矿控构造岩。     

浅谈寻找隐伏矿床的理论和方法

本文从地质勘查找矿角度,将未出露现代侵蚀面或被沉积物覆盖的矿床统称为隐伏矿床。寻找隐伏矿的理论和方法可分为：①地质分析（构造体系、地质建造、矿田构造、隐伏侵入体等）;②矿床学理论（成因模式、找矿模型等）;③数学地质（统计预测、综合信息、地质异常等）;④地球化学找矿（构造地球化学、原生矿晕、次生矿晕、离子态分布模式）;⑤地球物理找矿（层析成像、地电提取、物探填图等）;⑥矿物学方法（矿物标型、蚀变矿物等）;⑦遥感地质找矿;⑧其他方法（生物找矿、计算机技术等）。     

Geologic anomaly analysis for space-time distribution of mineral deposits in the middle-lower Yangtze area, southeastern China

A geologic anomaly is a geologic feature or structure that departs markedly from its surrounding environment with respect to composition, texture, or genesis. The analysis of geologic anomalies related to mineralization is based upon specific geologic factors and a combination of features, such as structural, temporal, and spatial, and draws upon special effects that are due to ore-forming processes. An analysis of the geologic anomalies in the, middle-lower Yangtze area in southeastern China has led to an interpretation of the relation between anomaly subtypes and the occurrence and spatial distribution of ore deposits. Consequently, the following conclusions have been reached: the type of anomaly reflects the controlling factors that led to the formation of iron, copper, and gold deposits in the area; sedimentary geologic anomalies are most closely associated with stratiform deposits; structral complexity anomalies are most closely associated with Cu−Fe−Au deposits; magmatic anomalies reflect geologic processes in which Fe and Cu elements were separated from magma and enriched into ores; and the geologic combination entropy anomaly is proposed as a comprehensive variable that is related to favorable ore-forming environments and that can serve as a quantitative index that can be used in mineral exploration.     

浙江非金属矿产地质研究的若干问题

浙江是环太平洋带最著名的非金属成矿区之一。本文在回顾浙江非金属矿床研究的基础上,论述了当前非金属成矿学、矿床地球化学、矿物学等领域中一些值得关注的问题或课题。     

中国绿岩带型金矿床类型和地质特征

绿岩带型金矿床是世界和我国重要的金矿床类型。中国绿岩带型金矿床可分为同构造晚期初生型金矿床和构造期后再生型金矿床二类。这二类金矿床的成矿地质环境、矿床地质地球化学均具有明显的不同。同构造晚期初生型金矿床不仅产出在中低变质绿岩带中，而且在高级变质绿岩带中分布很普遍和发育。构造期后再生型热液金矿床分布广泛、储量极大，是具有中国地质特色的金矿床类型。     

与火山—次火山—侵入—热液作用有关的金矿床分类探讨

讨论近年来在陆相火山－次火山－侵入－热液作用有关的金矿床分类中的一些争论问题。从具体资料出发，认为扩大浅成代温热注作用的范围，摒弃中温热液和高温热液矿床，以及经它们与斑岩矿床的关系是不妥当的；认为斑岩和系列是建立成矿模式，划分有产矿床的基础。