河北峪耳崖金矿控矿构造分析及深部预测

河北峪耳崖金矿位于冀东NE向构造带中，矿区出露的地层为中元古界的一套沉积岩系，以高于庄组石灰岩为主，产于其中的峪耳崖岩株为主要岩浆岩，构造以断裂为主并较为发育，矿区90％的矿脉受其控制。利用地质力学的观点对其控矿规律进行了深入分析。按照断裂与矿脉的空间关系，可划分出成矿前、成矿期、成矿后3种类型。成矿期断裂一般与矿脉同时生成并对其具有控制作用，主要呈NE、近EW、NNE、NW向。矿脉一般赋存于NE、NNE向断裂中，在其转折处以及倾向上由陡变缓处矿体变富。另外，矿脉还具有等间距、沿倾向斜列排布及复合控矿等规律。利用上述控矿规律对矿区50—150m标高处金矿体的空间位置、赋存状态及富矿部位进行了初步预测。     

河北蔡家营铅锌银多金属矿床简介及找矿体会

蔡家营铅锌银多金属矿床位于河北省张北县。该矿床的发现说明,在华北地台北缘实现铅锌矿找矿的重大突破,是有前提条件的。 一、矿区位于康保—赤峰、张家口—北票两条纬向深大断裂之间的内蒙台背斜中部、沽源台凹的蔡家营隆起部位。 矿区内出露的地层有上太古界红旗营子群,主要岩性为:矽线斜长变粒岩、黑云斜     

金厂峪金矿复合成矿特征解析

<正> 河北省迁西县金厂峪金矿位于华北地洼区河淮地洼系燕山地穹列,地处兴(隆)喜(峰口)——凌源弧形断裂南侧转弯处。矿区为—复式背斜构造。出露地层为八道河群王厂组斜长角闪岩、斜长角闪片麻岩构成的前地槽构造层。矿区以西3公里处出露有地洼期青山口花岗岩体,出露面积约为40平方公里。金矿赋存于斜长角闪岩的剪切带中。该     

河南嵩县前河金矿矿化特征、成矿时代与矿床成因

前河金矿位于华北克拉通南缘熊耳山地区,属于典型的构造蚀变岩型金矿.矿区出露的地层主要为古元古界熊耳群鸡蛋坪组流纹斑岩、英安岩及安山岩和马家河组安山岩、杏仁状安山岩夹凝灰岩.区域构造以近EW向断裂为主,局部有NE和NNE向断裂发育.     

重庆五斗坝铁矿矿床成因及工程地质特征

<正>1区域地质特征重庆市五斗坝铁矿位于七耀山山脉南部,矿区位于四川中生代前陆盆地之万州红色盆地次级褶皱石柱向斜南东翼,区域上主要构造为石柱向斜、方斗山背斜。矿区位于石柱向斜南东翼,无次级褶皱、断裂。区内构造简单,岩层呈单斜产出,走向北东,倾向北西,309°³29°,倾角43°329°,倾角43°⁶1°。矿区内出露地层有第四系全新统(Q),     

山东唐家沟金矿床地质特征及深部预测

唐家沟金矿位于胶东牟平乳山金矿带西南段;历经数次勘查工作,近期获得较大突破,累计金金属资源量规模达到近大型。矿区内出露地层主要为古元古代荆山群变质岩及新生界第四系,构造以古元古代褶皱构造和中生代断裂构造为主,其中含金矿化蚀变带受 NNE 向、NE 向、近 EW 向断裂控制。主要控矿构造呈 NNE 向、近 EW向展布,矿石类型主要为黄铁矿化石英脉、黄铁矿化花岗质碎裂岩和黄铁矿化大理岩,矿化具多期活动特点。研究发现,控矿构造局部引张段与其他构造交会处是储矿的有利部位,矿化蚀变叠加地段预示着深部成矿可能性极大。深部预测 NNE 向金矿化断裂构造与 NE 向硫化物富集带交会部位,残留荆山群地层与侵入岩接触部位、接触带与NE 向硫化物富集带交会部位为成矿的有利地带。     

胶东唐家沟金矿床矿化富集规律探析

唐家沟金矿为胶东牟平乳山金矿带西南段的一个中型金矿床。矿区内出露地层主要为古元古代荆山群变质岩及新生代第四系,构造以古元古代褶皱构造和中生代断裂构造为主,其中含金矿化蚀变带受NNE 向断裂控制。主要矿体呈NNE向展布,矿石类型主要为黄铁矿化石英脉和黄铁矿化碎裂岩,主要矿体厚度与品位呈正相关关系,矿化具多期活动特点。研究发现控矿构造与其他构造交会处以及控矿构造的拐弯处是储矿的有利部位,矿化蚀变叠加地段,预示着深部成矿可能性极大。找矿预测NNE向金矿化断裂构造与硫化物富集带及隐伏断层交会部位、残留荆山群地层与侵入岩接触部位为成矿的有利地带。     

辽宁二道沟—排山楼金成矿带金矿床矿点研究及找矿方向

研究区位于辽宁朝阳-阜新交接地区,本地区古生代尤其中生代构造活动剧烈.地表主要出露NE、NNE和NW向三组断裂,并沿着三组断裂充填了多期次中酸性脉岩.金成矿作用明显呈现出受断裂构造控制、跟脉岩相关的特点.     

~(210)Po法找矿在湖北某地的试验效果

一、概况工作区位于江南古陆北缘、扬子江准地槽以南,幕阜山花岗岩体的北缘,具体属方山背斜的南东翼,位于白路冲断裂带上。区内出露地层有震旦系、寒武系和白垩第三系。地层呈NE30°至40°走向,倾角25°至45°,有 NNE 及 NE 向断裂和层间破碎带,以及少量 EW 向的构造     

会泽铅锌矿床1031中段构造地球化学特征浅析

<正>会泽铅锌矿床位于川—滇—黔铅锌多金属成矿域的中南部,处于小江深断裂带和昭通—曲靖隐伏深断裂带间的北东构造带、南北构造带及北西向紫云—垭堵构造带的构造复合部位。是我国重要的铅锌锗产地之一。矿区构造主要发育北东向褶皱、断裂组成的大型逆冲推覆构造,包括矿山厂、麒麟厂、银厂坡断裂,同时与近乎垂直于北东向断裂的北西向断裂伴生。矿区出露从震旦系灯影组至二叠系栖霞—茅口组碳酸盐岩石,但矿体均赋存于下石炭统摆佐组(C1b)白云岩中。矿区发育大量峨眉山玄武     

Définition d'une limite multicritère ; stratigraphie du passage Campanien–Maastrichtien du site géologique de Tercis (Landes,SW France)Definition of a multi-criteria boundary; stratigraphy of the Campanian–Maastrichtian interval of the geological site at Tercis (Landes,SW France)

Lithostratigraphy, physicochemical stratigraphy, biostratigraphy, and geochronology of the 77–70 Ma old series bracketing the Campanian–Maastrichtian boundary have been investigated by 70 experts. For the first time, direct relationships between macro- and microfossils have been established, as well as direct and indirect relationships between chemo-physical and biostratigraphical tools. A combination of criteria for selecting the boundary level, duration estimates, uncertainties on durations and on the location of biohorizons have been considered; new chronostratigraphic units are proposed. The geological site at Tercis is accepted by the Commission on Stratigraphy as the international reference for the stratigraphy of the studied interval. To cite this article: G.S. Odin, C. R. Geoscience 334 (2002) 409–414.     

Late Wuchiapingian (Late Dzhulfian,early Late Permian) limestone olistolites within the Tertiary flysch of Glypia Unit (Mount Parnon,central–eastern Peloponnesus,Greece)

Some olistolites reworked in a Tertiary flysch of Mount Parnon (Peloponnesus, Greece) exhibit a Late Permian assemblage, dominated by Paradunbarula (Shindella) shindensis, Hemigordiopsis cf. luquensis and Colaniella aff. minima. This association corresponds to the Late Wuchiapingian (=Late Dzhulfian), a substage whose algae and foraminifera are generally little known. Contemporaneous limestones crop out in the middle part of the Episkopi Formation in Hydra, but they are rather commonly reworked in Mesozoic and Cainozoic sequences. The palaeobiogeographical affinities shared by the foraminiferal markers of Greece, southeastern Pamir, and southern China, are very strong (up to the specific level), and are congruent with the Pangea B reconstructions. To cite this article: E. Skourtsos et al., C. R. Geoscience 334 (2002) 925–931.     

PALEONTOLOGY

正20141596 Liu Yunhuan(School of Earth Sciences and Resources,Chang’an University,Xi’an 710054,China);Shao Tiequan Early Cambrian Quadrapyrgites Fossils of Xixiang Boita in Southern Shaanxi Province(Journal of Earth Sciences and Environment,ISSN1672-6561,CN61-1423/P,35(3),2013,p.39-43,3 illus.,20 refs.)     

GEOCHEMICAL EXPLORATION

正20141719 Chen Zhijun(State Key Laboratory of Geological Processes and Mineral Resources,China University of Geosciences,Wuhan 430074,China);Chen Jianguo Automated Batch Mapping Solution for Serial Maps:A Case Study of Exploration Geochemistry Maps(Journal of Geology,ISSN1674-3636,CN32-1796/P,37(3),2013,p.456-464,2 illus.,2 tables,10 refs.)     

MICROPALAEONTOLOGY

正20140962 Chen Fenning(Xi’an Institute of Geology and Mineral Resources,Xi’an710054,China);Chen Ruiming Late Miocene-Early Pleistocene Ostracoda Fauna of Gyirong Basin,Southern Tibet(Acta Geologica Sinica,ISSN0001-5717,CN11-1951/P,87(6),2013,p.872-886,6illus.,56refs.)     

PETROLOGY

正1.IGNEOUS PETROLOGY20142008Cai Jinhui(Wuhan Center,China Geological Survey,Wuhan 430205,China);Liu Wei Zircon U-Pb Geochronology and Mineralization Significance of Granodiorites from Fuzichong Pb-Zn Deposit,Guangxi,South China(Geology and Mineral Resources of South China,ISSN1007-3701,CN42-1417/P,29(4),2013,p.271-281,7illus.,     

ENVIRONMENTAL GEOLOGY

正20141205Cheng Weiming(State Key Laboratory of Resources and Environmental Information System,Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing 100101,China);Xia Yao Regional Hazard Assessment of Disaster Environment for Debris Flows:Taking Jundu Mountain,Beijing as an     

PROSPECTING EXPLORATION

正20141266Fan Chaoyan(Guangdong Provincial Key Laboratory of Mineral Resources and Geological Processes,Guangzhou 510275,China);Wang Zhenghai On Error Analysis and Correction Method of Measured Strata Section with Wire Projection Method(Journal of     

OCEANOGRAPHY & MARINE GEOLOGY

正20140582 Fang Xisheng(Key Lab.of Marine Sedimentology and Environmental Geology,First Institute of Oceanography,State Oceanic Administration,Qingdao 266061,China);Shi Xuefa Mineralogy of Surface Sediment in the Eastern Area off the Ryukyu Islands and Its Geological Significance(Marine Geology Quaternary Geology,ISSN0256-1492,CN37     

ENVIRONMENTAL GEOLOGY

正20141810 Bian Yumei(Geological Environmental Monitoring Center of Liaoning Province,Shenyang 110032,China);Zhang Jing Zoning Haicheng,Liaoning Province,by GeoHazard Risk and Geo-Hazard Assessment(Journal of Geological Hazards and Environment Preservation,ISSN1006-4362,CN51-1467/P,24(3),2013,p.5-9,2 illus.,tables,refs.)