geoc相关论文
Post-Orogenic Granites in Pingwu Region, Northwest Sichuan: Evidence for North China Block and Yangt
The Nanyili (南一里), Laohegou (老河沟), and Shaiziyan (筛子岩) granitic intrusions are located in the southern margin o......
1.Accession number:20151200672659 Anomalous high porosity zone and formation mechanism ofs high quality reservoir of Es4......
U-Pb, Rb-Sr isotopic chronology of Jinning granites in the Songpan-Ganze Orogenic Belt and its tecto
A series of Jinning granites are located in the eastern margin of the main part of the Songpan-Ganze Orogenic Belt. The......
Geochemistry on mantle-derived volatiles in natural gases from eastern China oil/gas provinces (I)——
Researches on helium, argon, carbon dioxide and methane are very significant in studies of mantle substance characterist......
~(40)Ar/~(39)Ar DATING OF QUARTZ FROM THE AKTISHKAN GOLD DEPOSIT IN NURT OF NORTHERN ALTAY, XINJIANG
Quartz from the major ore-forming stage of the Aktishkan gold deposit in the Nurt region of Northern Altay, Xinjiang Aut......
The amalgamation of the supercontinent of North China Craton at the end of Neo-Archaean and its brea
The most important geological events in the formation and evolution of the North China Craton concentrate at two stages:......
The Lower Triassic at Majiashan Section, deposited in the deep part of the Lower Yangtze carbonate ramp, is the only ou......
Distribution Characteristics of Effective Source Rocks and Their Control on Hydrocarbon Accumulation
The exploration conducted in the Bohai Bay basin, eastern China has demonstrated that the abundant petroleum resources h......
Ar-Ar and U-Pb geochronol-ogy of Late Paleozoic basalts in western Guangxi and its constraints on th
The Late Paleozoic layered or stratoid-layered basalts in western Guangxi have similar elemental and iso-topic compositi......
A new rock type of granite, approximate 45 km2 in area and located about 10 km south of Xilinhot, Inner Mongolia, was fo......
The carbon isotopes of individual lipids in herbaceous plants and tree leaves in Ruoergai marsh were measured by the GC-......
Geochemical discriminations of sandstones from the Mohe Foreland basin,northeastern China:Tectonic s
Discrimination of sandstone geochemistry to tectonic settings and provenance has become an effective method in the studi......
The effect of different tillage systems on the size distribution of aggregates and organic carbon distribution and stora......
The changes of magnetic susceptibility (κ) are correlated with those of corresponding sedimentological, geochemical, mi......
A suit of lacustrine source rocks are developed in volcanic deposits in the Shangkuli Formation of the Cretaceous. Howev......
Petrology and Geochemistry of Post-Collisional Early Miocene Volcanism in the Karacadag Area(Central
Early Miocene(ca.21-18 Ma) volcanism in the Karacadag area comprises three groups of volcanic rocks:(1) calcalkaline sui......
The Pulan-Xiangquanhe ophiolite in the western Yarlung Tsangpo suture zone of Tibet is investigated for its geochemistry......
Phosphorus is a key element and plays an important role in global biogeochemical cycles. The evolution of sedimentary en......
Deep carbon recycling is an essential part of the global carbon cycle.The carbonates at the bottom of the ocean are brou......
Crustal velocity structure in the Emeishan large igneous province and evidence of the Permian mantle
The Emeishan large igneous province(ELIP) in SW China is interpreted to be associated with an ancient mantle plume. Most......
Anaerobic oxidation of methane and sulfate reduction was studied in the pore waters of four cores at two stations of the......
Sedimentary Conditions of Evaporites in the Late Jurassic Xiali Formation,Qiangtang Basin:Evidence f
The Qiangtang Basin(QB), located in the central Tibetan Plateau, is a Jurassic marine basin and one of the most importan......
Use of portable X-ray fluorescence in the analysis of surficial sediments in the exploration of hydr
Hydrothermal plumes released from the eruption of sea floor hydrothermal fluids contain large amounts of oreforming mate......
Geochemical Features of Sulfides from the Deyin-1 Hydrothermal Field at the Southern Mid-Atlantic Ri
In this study, geochemical compositions of elements in sulfide samples collected from the Deyin-1 hydrothermal field nea......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
Discovery of the copper deposits with features of the Keweenawan type in the border area of Yunnan a
There existed intense Cu anomaly on the northeastern side of the geochemical boundary with NW strike in the border area ......
乌珠日特多金属矿化区位于大兴安岭成矿带的突泉—林西、孟恩套勒盖—布敦花银铜铅锌成矿亚带上,本文通过分析其化探异常特征及矿......
下扬子区二叠系为一套碳酸盐岩、硅质岩和陆源碎屑岩的混合沉积。对灰岩、白云岩、硅质岩和泥质岩进行系统的稀土元素、微量元素分......
地层的岩石地球化学特征是判断其形成环境氧化还原条件的重要手段之一.笔者对广西来宾铁桥剖面栖霞组中层纹状灰岩和含泥质灰岩进......
马元铅锌矿床位于扬子板块北缘碑坝穹窿构造的南缘,是区域上重要的碳酸岩型铅锌矿,矿体赋存于震旦系灯影组白云岩中。通过对马元铅......
通过对多研究区的页岩气碳同位素倒转现象及成因进行总结,发现目前对页岩气碳同位素倒转成因的主流认识有扩散和吸附/解吸过程中的......
Geochemical Features of Sulfides from the Deyin-1 Hydrothermal Field at the Southern Mid-Atlantic Ri
In this study, geochemical compositions of elements in sulfide samples collected from the Deyin-1 hydrothermal field nea......
采用等离子体光谱分析技术研究了珠江广州江段水体沉积物与悬浮物中２７种元素的含量和赋存形态特征．在沉积物中，强烈迁移型元素（Ｎａ、Ｃａ、Ｍｇ、Ｓｒ等......
运用电感耦合等离子质谱、XRD、XRF等技术手段测试了大同煤田太原组8号原煤及风化煤中常量元素和稀土元素含量,分析了常量元素和稀......
本文选择赣南亚热带典型地球化学景观区,较系统地研究了稀土元素在景观中的分布,分异特征.结果表明,该区地球化学景观中稀土元素含......
甲烷泄露背景下形成的碳酸盐岩,特征上明显区别于正常海相碳酸盐岩。冷泉碳酸盐岩、震旦纪的盖帽碳酸盐岩均被认为是甲烷泄露背景......
根据中国东南部地质、地热背景及与地下热水、铀矿化的关系,用热源、水源、矿源三源成矿的观点,提出并论证了中国东南部中新生代火......
在计算机代数系统基础上,将正常重力公式进行级数展开,推导出正常重力平均值处地心纬度关于椭球第一偏心率的函数式,并考虑将公式......
在湘东北岳阳-平江-带分布有许多新元古代花岗岩体，对其中的张邦源岩体进行锆石SHRIMP U—Pb年龄测定，获得（816±4．6）Ma的年龄。花......
新疆维宝铅锌矿床位于东昆仑祁漫塔格地区西段，铅锌矿体受地层及岩性控制，多呈层状、似层状赋存于蓟县纪狼牙山组中下部条带状绿帘石......
分散元素在地壳中常以分散和稀痕状态存在,对轻微地质作用并不敏感;一旦出现分散元素异常时则多具超常富集,其异常衬度均可达到几......
对龙门店Ag-Pb-Zn矿床的成矿地质背景、微量元素特征、稀土元素特征以及C-O,S和Pb同位素特征进行研究,结合矿床地质特征、成矿作用......
沿甘孜-理塘断裂带广泛发育有三叠纪玄武岩,该断裂带北段的玄武岩多为SiO<sub>2</sub>大部分不饱和蚀变较强的基性岩,根据TiO<sub>......
西昌金地是攀西地区中，新生代陆相断陷坳陷盆地。盆地内断裂褶皱发育，岩浆活动频繁，对于盆地内油气保存条件的好坏一直无法定论。通过......
地球化学异常评价的主要任务是区分矿致异常和非矿致异常以及就此提出远景预测区.文章就地球化学异常评价时对异常元素组合、规模......
文章采用PHREEQC模式程序，对研究区地下水的水文地球化学环境进行了模拟，确定水中铀的存在形式、水中沥青铀矿饱和指数（SI）和反应条件......
大西沟－ 银硐子银多金属矿床由同生断裂－ 热水流体－ 地球化学动力学的多重耦合作用形成。矿床在区域上处于柞山镇Ｐｂ、Ａｓ、Ｃｕ 地球化学省，ＮＷＷ 向......
通过依托项目“青海省杂多县阿涌地区1：5万水系沉积物测量”的实施和综合研究，获得了较丰富的化探资料。对18种元素进行了统计分析，基......
位于北祁连造山带东段甘肃省景泰正路一带的下志留统肮脏沟组为一套巨厚的浊流相陆源辞屑岩，以杂砂岩为主，夹有板岩，属典型的浊流沉积......
大别造山带中广泛分布经历不同程度变质的变质岩，这些变质岩的形成时代、变质年龄的研究对反演大别造山带形成演化历史有重要意义。......
