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Record of environmental change by α-cellulose δ ~(13)C of sphagnum peat at Shennongjia,4000―1000 aBP
The Dajiuhu Basin at Shennongjia,located within typical East Asian Monsoon region,preserves a sub-alpine sphagnum peat d......
Taking Huanglong Ravine and Kangding, Sichuan, and Xiage, Zhongdian, Yunnan, as examples, the authors summarize the hydr......
The <sup>59</sup>Co-NMR spectra of several cobalt （Ⅲ） complexes have been directly recorded bypulsed Fourier transform nu......
Oxygen and carbon isotopes of carbonate in concretion and bulk samples collected from Xifeng. Luochuan and Weinan loess ......
Lithofacies Features and Mechanism of Formation of “Zihe-type” Time-and Strata-bound Iron Ore Deposi
The Lower Palaeozoic system is a series of iron-bearing rocks consisting mainly of shallowsea-facies carbonates.On the ......
A group of Rb-Sr ages, i.e. plagioclase-whole rock (WR) isochron age of (205±7) Ma,hornblende-WR isochron age of (164......
EPITHERMAL gold (copper) deposits distributed in the middle-south parts of Tancheng-Lujiang deep faultzone and its vici......
Geology, Geochemistry and Origin of the Hongshan Porphyry-Cryptoexplosive Breccia Type Copper Deposi
The Hongshan porphyry-cryptoexplosive breccia type copper deposit occurs in a metamorphic rockseries of the Mesoprotero......
He,Ne and Ar isotope compositions of fluid inclusions in hydrothermal sulfides from the TAG hydrothe
Helium, neon and argon isotope compositions of fluid inclusions have been measured in hydrothermal sulfide samples from ......
A detailed stable isotopic study based on benthic foraminifera from 1165 samples of ODP Site 1148 (18°50.17.3’N, 116°......
SHRIMP Dating and Recrystallization of Metamorphic Zircons from a Granitic Gneiss in the Sulu UHP Te
An unusual zircon SHRIMP dating result of a granitic gneiss from the Qinglongshan eclogite-gneiss roadcut section is pre......
Fluid Inclusions of Orogenic Gold Deposits in the Zhongchuan Area,Western Qinling and Their Geologic
Orogenically-derived gold deposits of the Zhongchuan area in the western Qinling are distributed in the exo-contact ther......
Clay mineral records of East Asian monsoon evolution during late Quaternary in the southern South Ch
High-resolution clay mineral records combined with oxygen isotopic stratigraphy over the past 190 ka during late Quatern......
We demonstrate a scheme for coherently induced grating based on a mixture of two three-level atomic species interacting ......
目的 研制乳粉中非添加二噁英类化合物的标准物质,加强我国二噁英类化合物实验室检测质控能力建设.方法 选择满足侯选物筛选原则和......
目的建立动物源性食品中6种玉米赤霉醇类化合物残留量的同位素稀释-液相色谱-串联质谱的检测方法。方法样品加入同位素内标后,用甲......
Xenotime is an ideal mineral for U-Th-Pb isotopic dating because of its relatively high U and Th contents, but typically......
Large selenium isotopic variations and its implication in the Yutangba Se deposit, Hubei Province, C
The selenium isotopic ratios have been measured in the Yutangba Se deposit, Hubei Province, China. The results show that......
Zircon LA-ICP MS U-Pb dating of six metamorphic rocks and a metagranite (breccia) from southern basement of the Songliao......
Geochemical characteristics and source analysis of inflow of mine water in Wang’ershan Gold Mine, Sh
Through a systematic observation of water level and temperature, and a comprehensive analysis of the data on major/trace......
Emplacement Ages and Petrogenesis of the Molybdenum-bearing Granites in the Jinduicheng Area of East
The Mesozoic porphyry assemblage in the Jinduicheng area is a special molybdenum area in China, the Mo deposits, includi......
Petrology and geochemistry at the Lower zone-Middle zone transition of the Panzhihua intrusion,SW Ch
A sequence of gabbros showing isotropic,layered and fine-grained textures is exposed in the Nalaqing mine at the souther......
The generation kinetics of natural gases in the Kela-2 gas field from the Kuqa Depression, Tarim Bas
The Kela-2 gas field, found in the Kuqa Depression of the Tarim Basin, northwestern China, is a large-sized dry gas fiel......
Skarn-type tungsten mineralization associated with the Caledonian(Silurian) Niutangjie granite, nort
The Niutangjie tungsten deposit is a bedded skarn-type scheelite deposit and is located at the junction between Ziyuan a......
A comparative review of petrogenetic processes beneath the Cameroon Volcanic Line: Geochemical const
The origin and petrogenesis of the Cameroon Volcanic Line(CVL),composed of volcanoes that form on both the ocean floor a......
1 Methods of individual dose monitoring 1.1 Methods of individual monitoring of external exposure It takes the OSL(Al2O3......
Attention has been focused on verification of fission materials in arms control and non-proliferation fields. Some of th......
Radiogenic Neodymium (Nd) isotopes in the central North Pacific deep water have been generally interpreted as reflecting......
In the northern South China Sea,the accumulation of enormous quantities of terrigenous sediment during Cenozoic rendered......
Distribution and quantification of Pb in an evergreen broadleaved forest in three hydrological years
The distribution,quantification and fluxes of Pb were examined in an evergreen broadleaved forest in western Greece for ......
Little is known about the stable carbon isotopes of methane(CH4) emitted(δ~(13)CH_(4emitted)) from permanently flooded ......
目的 应用国产多功能18F标记模块制备4-[18F]氟-3-三氟甲基苯甲酰基-谷氨酸-(RGD -苯丙氨酸-赖氨酸)环肽二聚体(4-18 F-TFMB-E[c(R......
本文主要从测定时间、样品带的电流强度、观测到的目标离子流强度和得到结果的精度等几个方面出发,比较了使用几种不同的碳纳米材......
The isotopic analysis of 232Pu plutonium in 5×10-12 g/g samples using a multi-collector inductively coupled plasma ......
目的观察体外培养半月板纤维软骨细胞的生长特点及生物学特性,研究中分子量透明质酸(hyaluronic acid, HA)对体外培养半月板纤维软......
基于国际原子能机构和世界气象组织在全球范围内降水中同位素观测计划提供的2000~2010年地区数据,分析研究区数年内稳定同位素与季......
使用放射性同位素3H标记的化合物3H-TdR、3H-Urd、3H-Leu作为培养中的动物细胞生物合成的前体,定时对培养细胞做放射性检测,表明生......
40Ar/39Ar同位素体系大体经历了3个技术阶段:常规 40Ar/39Ar定年技术、40Ar/39Ar分步加热定年技术和40Ar/39Ar激光显微探针定年技......
蓬莱坝剖面位于塔里木盆地北缘巴楚地区,发育有中上寒武统-下奥陶统的白云岩.其中上寒武统白云岩局部可见由易于溶蚀白云岩和难于......
地外天体的探测目标主要是太阳系中离地球较近的行星和天体,例如水星、金星、月球、火星、木星、小行星67P和近地小行星25143糸川......
作者按照涂光炽教授的分类将福建省层控铅锌矿床划分为4种类型。本文对它们的地质特征、微量元素和硫、铅同位素组成的特征作了较......
2008年1月同时采集了北京市市区/交通干道（中国地质大学（北京）东门及测试楼顶）、工业区（首钢集团焦化厂、高井热电厂）和背景点（十三陵）大气......
卡塔克隆起北坡的上奥陶统良里塔格组台缘带的礁滩相孔洞缝储集体是油气的重点勘探领域。中2井是卡塔克隆起南坡的第一口以查清卡......
探讨了塔里木盆地东部英南2凝析气藏的非常规盖层--致密钙质胶结砂岩的形成机理.这种致密砂岩孔隙中钙质胶结物共有两期,早期方解......
【正】 By using the method of double ratios of isotope yields,the nuclear temperature isextracted in the reactions of 30......
川东地区上二叠统长兴组生物礁滩相带具有巨大的油气勘探潜力,分析层序地层与同位素组成的响应特征及礁滩发育模式,可为该区礁滩勘......
利用增量方法和同位素交换技术，对角闪石族矿物的氧同位素分馏进行了理论计算和实验测定。理论结果表明，不同化学成分的角闪石之间存......
根据铀、钍同位素地球化学基本原理，对新疆伊梨盆地５１２矿床含矿砂岩的Ｕ、Ｔｈ含量及其＾２３４Ｕ／＾２３８Ｕ、＾２３０Ｔｈ／＾２３２Ｔｈ进行了测试，并在此基础上对含矿砂岩的氧化带、还原带......
在淮北新元古代倪园组和九顶山组海相碳酸盐岩地层中,保存着许多燧石相微生物化石.通过对其形态结构、群落组合特征及埋藏保存状态......
