共查询到20条相似文献，搜索用时 109 毫秒
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通过对新疆康古尔塔格地区Ⅵ号和Ⅷ号金矿进行的试验研究,结合测区的地质与地貌的实际情况,确立了空中和地面地球物理测量条件,建立了本区寻找金矿的综合地质-地球物理标志;应用综合找矿标志,圈出了该区金矿远景区10个,经地面查证发现了其中含金矿化蚀变带5处,并确认该区石炭系苦水组地层为新的含矿层. 相似文献
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通过对新疆康古尔塔格地区Ⅵ号和Ⅷ号金矿进行的试验研究,结合测区的地质与地貌的情况,确立了空中和地面物理测量条件,建立了本区寻找金矿的综合地质－地球物理标志;应用综合找矿标志,圈出了该区金 远景区１０ 相似文献
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金窝子金矿床动力热液成矿雏议 总被引：5，自引：0，他引：5
用动力成矿观点对金窝子金矿区的矿体形成提出了新的解释,在分析该区成矿地质环境、构造变形特征、动力成矿特点的基础上,较详细地讨论了该区金矿体的成因和找矿标志,该矿床是构造动力对矿源层再造的动力热液矿床。 相似文献
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在综合研究区域地质、控矿因素、物化控、遥感等信息的基础上，总结出该区金矿成矿的空间结构性规律、时间过程性规律和运动因果性规律，确定了找矿标志，指出了找矿方向和成矿有利区。 相似文献
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介绍了美国卡林型金矿的地质特征及分布特点,从赋矿地层及含矿岩性、控矿构造、围岩蚀变、矿物组合、元素共生组合、金的赋存状态和粒度、金银比值及其他方面详细阐述了甘肃省舟曲—文县一带卡林型金矿地质特征,总结了卡林型金矿的找矿标志,通过与美国卡林型金矿的类比指出了该区具有金矿找矿的巨大潜力。 相似文献
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In the eastern part of Chian there had occurred large-scale gold mineralization during the Mesozoic,resulting in a large number of inprotant gold ore-concentrated areas.In this paper we have selected some isotope data(including four gold deposits previously studied and two gold deposis in this work)of Au-bearing quartz veins of the representative gold deposits in six impor-tant gold ore-concentrated areas in the periphery of the North China Platform and calculated their metallogenic ages using the method of Ludwig(2.90 version).The results show that the repre-sentative gold deposits in the six gold ore-concentrated areas were formed during the Mesozoic. 相似文献
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Geochemical data of altered wall rocks are important for the metallogenic prognosis of hydrothermal gold deposits. Indicator elements of altered wall rocks such as K, Al, As, Sb, and Hg have been successfully used to assess gold anomalies in lithogeochemical survey. However, such researches have rarely been done in stream sediment survey for the exploration of gold from various landscapes. On the basis of the geochemical analysis of altered wall rocks of gold deposits in the cold desert areas of Gansu (甘肃) Province in Northwest China, it is found that the combination of Al, K, and Sn could serve as an important indicator of hydrothermal gold deposits and can be used to evaluate the metallogenic prospective of gold anomalies in stream sediments. More studies performed in the cold grassland areas and the moderate-low relief mountainous areas showed that, both weak and strong geochemical anomalies can be extracted, if strictly abiding by the ways of calculation and addition of the binary values of the indicator elements with equal weight, and this provides the sound delineation of metallogenic perspective areas. 相似文献
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赤峰-朝阳金矿化集中区元素分带特征及其应用 总被引：13，自引：0，他引：13
为了研究赤峰-朝阳金矿化集中区内金矿床的元素轴向分带特征,归纳总结了区内9个矿床的分带序列.结果表明,其分带序列为F-(Ba,As,Sb,Hg)-Au-Pb-Ag-Zn-Bi- Cu-W-(Mo,Co,Ni,Ti),与热液矿床典型综合分带序列和金矿床的综合分带序列相似.利用这一分带序列给出的前缘元素组合和尾晕元素组合建立了(As Ba Sb)/(Bi W 1)、(As Sb)/(Bi W) 等累加指数,并以此预测了撰山子金矿26、28号等矿脉的深部含矿性,后经生产验证预测正确. 相似文献
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This paper presents a review of the available information on the significant porphyry, epithermal, and orogenic gold districts in Argentina, including the tectonic, geological, and structural settings of large deposits or deposits that have been exploited in the past. Based on this review of the geology and mineralization, targeting models are developed for epithermal and orogenic gold systems, in order to produce GIS-based prospectivity models. Using publically available digital geoscience data, weights of evidence and fuzzy logic prospectivity maps were generated for epithermal and orogenic gold mineralization in Argentina. The results of the prospectivity mapping highlight existing gold deposits within known mineralized districts throughout Argentina, as well as other highly prospective areas with no known deposits within these districts. Additionally, areas within Argentina that have no known gold mineralization (based on publically available information) were highlighted as being highly prospective based on the models used. 相似文献
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广宁-罗定金矿带金矿成矿条件及预测 总被引：3，自引：0，他引：3
广宁-罗定断裂带隶属于粤西地区云开加里东褶皱系云开隆起,是广宁-罗定金矿带的控矿断裂带,前人曾把它称为断裂带、断褶带、断裂变质带、推覆构造带.目前,该矿带内已发现金矿床（点）120余处.自1983年以来,发现了河台等一系列大中型金矿,引起了对此矿带基础地质和成矿条件研究工作的重视.从目前的研究看,广宁-罗定金矿带内的一系列金矿床（点）均赋存于广宁-罗定韧性剪切带内,严格受剪切带内强变形糜棱岩-初糜棱岩带控制.河台金矿床、塔岗金矿点均为河台型金矿床,产于含炭细碎屑岩系中的韧性剪切带内.金矿床形成于韧性剪切构造活动的晚期构造扩容阶段,与印支期伍村单元花岗质岩石的侵入有明显的成因联系.通过对金矿带内金矿成矿条件研究及河台金矿典型矿床研究,成功地圈定出塔岗地区为广宁-罗定金矿带内的又一个最具找矿远景的预测靶区.进一步的工程验证,求得F级金矿储量8234kg. 相似文献
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无模型迭代预测是特征分析的延深，这一预测方法不需要典型矿床或矿点作训练样本。遥感做为先期重要的找矿手段，可以提供大量的金矿找矿信息，在湘赣交界区和新疆东天山地区，以感为基础，结合其它地学信息，先模型迭代预测模型进行金矿预测取得了较好的效果。 相似文献
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辽西建平—宝国老太古宙变质岩建造金矿化带成矿潜力巨大,目前已发现金矿床(点)127处,但随着金矿开发力度及难度增大,急需寻求新的找矿突破。利用前人的地质、矿产、物探及化探等资料,建立了建平—宝国老太古宙变质岩建造金矿化带的空间数据库。重新建立了研究区金矿区域找矿模型,其中主要找矿标志包括新太古代变质深成岩、中生代中-酸性侵入岩、EW-NE-NNE-NW向断裂、Au-Ag-Cu-Pb-Zn-Mo化探异常、金重砂异常、已发现金矿床(点)。采用MRAS中的矿床综合预测模型,对研究区首次进行了基于GIS下的金矿产资源评价工作。据此圈定并优选出12处找矿靶区;并根据成矿有力度的不同由高到低划分为A、B、C 3级,其中A级找矿靶区7处,B级找矿靶区4处,C级找矿靶区1处。 相似文献
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