地球化学异常

• These two methods have been widely investigated for their usefulness and suitability for strategic reconnaissance surveys with wide - spaced sampling for delineation of broad geochemical patterns generating from concealed giant ore deposits
  其结果表明： ( 1 )隐伏大型特大型矿床四周巨大的地球化学模式可以被各种营力搬运至地表，地气对超微量金属的搬运是厚覆盖区隐伏矿床在地表形成叠加含量地球化学异常的主要原因。
• With hefei basin as an example , this paper has analyzed the variation regularity of geochemical anomalies in different backgrounds and its significance in exploration , put forward the principle for dividing regional blocks and pointed out the great importance of detailed background investigation in geochemical exploration
  摘要以合肥盆地为例，分析不同背景下的地球化学异常的变化规律及其勘探意义，提出划分区块的原则，指出化探工作者不可忽略对背景的深入研究。
• Based on characteristic analysis of geophysical field , geochemical anomaly and remote sensing image reflected by the ore - controlling factors , this paper has generalized the regional geophysical , geochemical and remote - sensing information closely related to mineralization , summed up the relationship between them , and put forward the major controlling factors , thus providing the basis for the utilization of integrated information to ore prospecting and prediction
  摘要通过对控矿因素反映的地球物理场、地球化学异常及遥感影像的特徵分析，归纳出与成矿关系密切的区域物、化、遥信息，并采用数理统计方法总结了它们之间的相关关系，提出了主控因素，为进一步利用综合信息进行成矿预测提供了依据。
• Based on geological and geochemical data of different levels from more than 40 copper deposits , geologists of this project have studied geochemical characteristics of ore belts , ore fields and ore deposits of porphyry , skarn , composite , marine volcanic , metagenetic - hydrothermal reformation and hydrothermal veinlike types of copper mineralization , summed up geochemical anomaly models of various copper deposits , and established exploration geochemical pattern - model systems for various types of copper deposits
  该项目以我国40多个铜矿床不同级次的地质、地球化学资料为基础，研究了斑岩型、夕卡岩型、复合型、岩浆型、海相火山岩型、沉积变质热液改造型和热液脉型铜矿的矿带、矿田、矿床地球化学特徵，总结了各矿床的地球化学异常模式，建立了各铜矿类型的勘查地球化学模式模型系统。
• In this article , model of geological conception in panzhihua - xichang area is established , and then the authors used gis as the tool to analyze the pge ore - forming geological conditions , including geological structure , emeishan basalt , basic - ultrabasic rock and pge geochemical abnormal
  本文在建立攀西地区铂族元素矿床地质概念模型的基础上，用地理信息系统( gis )分析了该地区的铂族元素成矿地质条件，包括地质构造、峨眉山玄武岩、基性一超基性岩和铂族元素地球化学异常特徵。
• By applying the theory and method of geological anomaly , it is focused on the analysis of the characters of major geological anomalies and their effect of mineralization in daye - jiurui region . the analysis result shows that the basement fault anomalies control a few major large hidden batholiths and their associated orefields ; that the anomalies of cover structure confine most cu - au deposits and fe - cu deposits within their scope ; that the geochemical anomalies and lithofacies - paleogeographical anomalies are major geological factors leading to trataboundness of some cu - au deposits ; that the anomalies of rock operties provide the favorable chemical and physical conditions for the ore - forming process , including the seepage , circulation , convergence and deposit of ore - bearing hydrothermal solution ; that the anomalous ctive stage of mesozoic magmatite is almost consistent with the major mineralization epoch of the fe , cu deposits , and the structure of multi - levels , and the zoning in magmatic system determine the spatial distribution of the mineralization system . then , based on the above analysis , a comprehensive variate , geological combination entropy , is brought forward for reflecting the complex degree of the combination of geological ore - controlling factors . after circumscribing the anomalies of geological combination entropy , the relations between the anomalies and ore deposits are determined
  从地质异常的角度，重点分析了大冶九瑞地区主要地质异常的特征及其对成矿的影响.由分析可知：基底断裂异常控制了本区若干重要规模较大的隐伏岩基及伴生矿田，而盖层构造异常控制铜金矿床和铁铜矿床的空间位置；地层的地球化学异常和岩相古地理异常是造成一些铜金矿床层控性的主要地质因素；盖层的岩性异常为含矿热液的渗流、循环、聚集和矿质沉淀等一系列成矿作用提供了有利的物理和化学条件；中生代岩浆岩的异常活动期也是本区主要的铁铜成矿期，岩浆岩系统的多层分枝和分带性结构控制了本区成矿系统的三维空间分布.在上述分析的基础上，构置了地质组合熵作为反映控矿地质因素组合系统结构复杂程度的综合变量，并圈定出组合熵异常，由此确定了综合地质异常与矿床的关系
• According to distribution regularity of elements in strata , intrusive rocks , ores and orebodies of the zhongqiuyang volcanogene hydrothermal copper deposit , this paper has elucidated characteristics of geochemical primary anomalies , determined indicator elements related to the ore deposit and their sequence of zoning , established indices for evaluating denudation extent of ore deposit , and formulated geochemical anomaly pattern of the ore deposit
  摘要据钟丘洋火山热液型铜矿床的地层、侵入岩、矿石和矿体中元素的分布规律，阐明了该矿床的地球化学原生异常特徵；确定了与矿床有关的指示元素及其分带序列；建立了矿床剥蚀程度的评价指标及该矿床的地球化学异常模式。
• In north of whole three rivers tectonic belt include jiangda tectonic belt , regional geochemical research indicate that its geochemical anomaly present the character of belt in nw direction and trip in ne direction , too . this is the geochemical response in earth ' s surface of deep - action . in nature , it is the consequence resulted by the terranes inserted as strips and blocks , regional transversal structure develope
  区域地球化学研究表明，包括江达构造带在内的三江构造带北段，区域地球化学异常亦表现出北西成带、北东成条特征，这是深部作用的地表地球化学响应，实质上是地体条块镶嵌、区域横向构造发育以及与此相关的壳幔长期作用的结果。
• Based on such characteristics of the xiaonangou gold deposit as trace element associations , horizontal zoning , vertical zoning , element contrast values , orebody lateral plunging , and attitudes and sizes of orebodies , this paper deals tentatively with the geochemical anomaly pattern of tectonic altered rock type gold deposits , with the purpose of establishing ore - prospecting criteria for ore exploration work of this area
  以小南沟金矿床中微量元素组合关系、水平分带、垂直分带、元素对比值、矿体侧伏、矿体产状和规模等特征为例，探讨构造蚀变岩型金矿床的地球化学异常模式，以期建立地质找矿标志，指导本地区的找矿工作。
• The thesis introduces regional basic geology and mineral geology of the area at first , then builds full gis database of northern three - river area , and singles out geochemical anomalies by development on mapgis , and finally studies intensively the metallogenic regularity using gis spatial analysis , fractal theory , etc . the result shows : 1 . obscure information can be revealed in studying on metallogenic regularity by applying apporiate mathematic models
  在全面了解区域基础地质、矿产地质后，以mapgis为平台，建立了完整的西南三江北段地质矿产数据库，并对mapgis进行二次开发，实现了地球化学异常的圈定，最后运用gis空间分析、分形理论等手段对数据库进行信息提取，详细研究了区域成矿规律。