鄂东鸡冠嘴铜（铁）金矿床的地质特征及成因

本文通过对鸡冠嘴铜（铁）金矿床的地质特征及成矿机制的研究，认为该矿床明显受构造、地层和岩浆活动控制，在时空及成因上具有“一体多矿”、“一体多带”的成矿特点，为高、中温热液－接触交代矽卡岩型铜（铁）金矿床     

陕西九子沟铜矿成矿要素及成矿模式研究

九子沟铜矿位于铅硐山—铜牌沟铜铅锌成矿带中部。矿区赋矿部位为星红铺地层内灰岩与千枚岩接触面及其附近,此界面两侧岩性能干性相差大。一方面在北东向应力作用下,在二者接触部位容易形成滑脱,为成矿热液向上运移提供通道。另一方面,二者构成"硅钙面",引发流体物理化学条件变化,导致矿质沉淀。矿床矿体主要呈层状、似层状,局部为透镜状。根据矿区成矿地质环境、矿体特征、成矿物质组分、矿石组构、成矿物质来源等特征,初步确定了九子沟铜矿床的成矿要素及成矿模式。     

试论广西泥盆系层控铅锌矿

根据成矿作用、矿体产状及矿物组合等特征，可把广西泥盆系铅锌矿床划分为沉积－改造型，沉积－再造型，热液叠加型三种层控铅、锌矿矿床类型。成矿作用为多期、多阶段、多成因的。     

Mercury contamination in fish from gold mining areas in Indonesia and human health risk assessment

This study investigates the effects on fish and assesses human health hazards from mercury released in two gold mining areas in Indonesia: Tatelu (North Sulawesi Province) and Galangan (Katingan District, Central Kalimatan Province). In Tatelu, 154 fish specimens of 10 freshwater species were collected, as well as five marine species from the fish market. The mean concentration of total mercury in muscles of freshwater fish from this area was 0.58+/-0.44 microg/g, with more than 45% of fish having Hg levels above the WHO guideline for human consumption of 0.5 microg/g. In Galangan, where 263 fish specimens of 25 species were collected, the total mercury in muscles averaged 0.25+/-0.69 microg/g. Excluding data from flooded open pits in sub-area P4, mean Hg levels in fish from Galangan were 2 to 4 times lower than 0.5 microg/g, while fewer than 10% of fish from Galangan exceeded WHO guidelines. The Hazard Quotient (HQ) was applied to both areas to determine the threat of MeHg exposure for communities in both areas. The HQ is a risk assessment indicator which defines the ratio of exposure level to a single substance in relation to a reference dose. Samples from Tatelu (excluding marine species) had an HQ above one, while those from Galangan resulted in values of 2.4 for the whole area and 9.9 for sub-area P4, pointing to potentially harmful fish consumption for the local population. By using the single-compartment model to estimate mercury levels in blood and hair from daily intake dose, sub-area P4 showed the highest levels, higher than the upper limit guideline for pregnant women, but still lower than threshold levels associated with observed clinical effects.     

我国宝玉石矿带划分及矿床分类

宝玉石矿产与大宗矿产的地质成矿存在密切的关系，我国宝玉石矿产成矿可划分为六个成矿带、八种矿床类型。     

胶东乳山金矿金青顶矿区黄铁矿热电性研究

金青顶金矿黄铁矿α值离散性较大。Ｐ型黄铁矿出现率为８１．３％。导型组合在早成矿期Ⅰ－ｌ→Ⅰ－４阶段的变化是：Ｐ＞Ｎ→Ｐ》Ｎ→Ｐ》Ｎ→Ｐ＞Ｎ；在晚成矿期Ⅱ－２→Ⅱ－３阶段的变化为Ｐ＜Ｎ→Ｐ》Ｎ。在矿化地段，由上而下，αｐ减小，αＮ增大；Ｐ％减小，Ｎ％增大。其影响因素主要为黄铁矿中Ｃｏ，Ｎｉ，Ａｓ，Ｓｂ，Ｔｅ的含量，其次为结晶温度。用黄铁矿导型和αｐ均值所作矿物学填图反映的结果基本一致，从中可以取得有关黄铁矿形成温度，矿床剥蚀程度，矿体特征，深部远景和控矿构造等标型信息。     

水泉沟碱性杂岩体特征与东坪金矿成矿规律

金矿床的形成与碱性杂岩体密切相关。本文通过对杂岩体的成因、成岩时代、岩石类型以及岩体的含金性和部分同位素的特征分析，探讨了岩体与矿床的成岩关系。同时根据矿床地质特征和大量成矿信息，总结了成矿规律，提出了找矿方向。     

音频大地电磁法在新疆阿依拉苏铀矿勘查中的应用

阿依拉苏铀矿点具构造控矿的特征,但地表断层产状较陡,无法判断深部断层延伸情况。文章在综合地质调查的基础上,通过音频大地电磁测深,初步了解地下地质体的空间展布及断层的延伸情况。经钻探工程验证,深部存在铀矿体,最终认为地表矿点为深部含矿体错动地表所致。     

李坝金矿地质-地球物理找矿模型及远景评价

通过对李坝金矿控矿因素和岩、矿石地球物理参数的研究以及对地球物理异常的分析和推断，建立起矿田地质－地球物理找矿模型，并应用于找矿预测，已获得很好的找矿效果。     

大兴安岭南段红山子铀矿床地球物理特征及找矿预测

红山子铀矿床位于沽源-红山子铀成矿带的北东段,浅部矿点和规模较大的铀矿带大部分已得到揭露。为了扩大基地外围铀资源潜力,同时对矿区铀矿床深部第二富集带进行探寻,在红山子铀矿床地区开展音频大地电磁测量和地面高精度磁法测量等综合物探方法。共推断通过L10和L12线的断裂3条,其地表位置和深部延伸情况与钻探揭露情况吻合;地面高精度磁测共推断出断裂35条,并能圈定与铀成矿有密切关系的粗面岩的分布范围。根据区内已知铀异常点、带的分布,结合钻孔资料,总结了铀矿成矿有利地段的地球物理找矿模式,经后期钻探验证,取得了较好的找矿效果。在铀矿床外围进行"攻深找盲"时,利用综合物探方法及地球物理模式综合找矿,可以起到事半功倍的效果,为新一轮铀矿勘查提供有力手段。