XINJIANG GEOLOGY Vol.19, 2001 SUMMARY CONTENTS

COMMENTARY A preliminary discussion on the metallogenesis and the exploration access of the large deposits in Xinjiang………CHEN Zhe-fu (1-6) A preliminary discussion on the metallogenesis and the exploration access of suprelarge deposits in Xinjiang……CHEN Zhe-fu (2-87) Industrial situation of gold and development antidote in China………………………………………………………WANG Qin (2-90) Resource types and development prospect of ornamental stones in Xinjiang……………………LIU …     

2009年阿克苏河枯水年水文特征及其对塔里木河干流生态环境的影响

塔里木河流域2009年4—8月0℃层高度平均为4290 gpm,较12 a平均值偏低52 gpm,偏低幅度位居近19 a(1991—2009年)同期第5位.而夏季(6—8月)4站平均高度偏低129 gpm,偏低幅度位居近19 a(1991—2009年)同期第1位.2009年阿克苏河流域年径流量69.28×108m3为偏枯水年;经两支流灌区后,阿克苏河西大桥站年径流量为52.34×108m3,为枯水年.由于塔里木河阿拉尔站以上阿克苏河、叶尔羌河、和田河三条源流2009年入塔里木河水量仅为12.01×108m3,使阿拉尔站年径流量仅为14.08×108m3,为历史最小值,属特枯水年.新渠满站年径流量仅为8.374×108m3,为历史最小值,属特枯水年,并于6月1日—7月22日河道断流52 d,该站至台特玛湖河道断流长达1 100km,占塔里木河干流总长1 321 km的83%,这在历史上是罕见的.     

南海南部裂离型盆地构造特征

基于前人研究及已钻井、地震、重磁等资料,发现南沙地块与中沙-西沙地块在地壳结构、重力异常及基底岩性等方面具有对称相似性,认为二者以南海扩张脊为轴呈共轭关系。在三大区域构造事件的控制下,盆地发育三大不整合面:初始裂陷不整合面(RU面)、破裂不整合面(BU面)、碰撞不整合面(CU面)。据此可将盆地划分为3套构造层,并建立起统一的构造格架。整体上,以CU面为界,裂离型盆地均呈"下断上坳"的结构特征:下构造层(RU—BU)主要为双断式的地堑结构,主要发育NE、NEE、NW向大型断裂;中构造层(BU—CU)主要为单断式的箕状—双断式的地堑结构,在继承早期大型断裂的基础上发育一系列近EW向次级断裂;上构造层(CU—海底)为稳定的坳陷结构,断裂不发育。     

Science in China Series D: Earth Sciences

Sponsored by: Chinese Academy of Sciences National Natural Science Foundation of China Published by: Science in China Press Chairman: ZHOU Guangzhao (Zhou Guang Zhao) Editor-in-Chief: SUN Shu Executive Editors: CHEN Yong MA Zongjin OUYANG Ziyuan SU Jilan SUN Honglie WANG Pinxian ZHOU Xiuii     

Abstracts of Acta Geologica Simca(Chinese Edition) Vol.80,No.12,2006

Quantitative Determination of Chemical Compositions of Solid Exsolution Lamellae in Apatites from the Chinese Continental Drilling (CCSD) Project: An Application of Energy Dispersive Spectroscopy (EDS) with SEM CHEN Fangyuan, ZENG Lingsen and LIANG Fenghua (Key Laboratory for Continental Dynamics, Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037) Solid exsolution lamellae of various sizes have been reported in rock-formimg process as well as acce…     

Science in China Series D:Earth Sciences

Sponsored by: Chinese Academy of Sciences National Natural Science Foundation of China Published by: Science in China Press Chairman: ZHOU Guangzhao(Zhou Guang Zhao) Editor-in-Chief: SUN Shu Executive Editors: CHEN Yong MA Zongjin OUYANG Ziyuan SU Jilan SUN Honglie WANG Pinxian ZHOU Xiuji     

Ore fluid geochemistry of the Jinlongshan Carlintype gold ore belt in Shaanxi Province, China

THEJINLONGSHANGOLDOREBELTINZHEN’ANCOUN TY,SOUTHERNSHAANXIPROVINCE,ISLOCATEDINTHEWEST ERNQINLINGGOLDPROVINCE(NO.16INFIG.1;CHEN YANJINGETAL.,2004).ITWASDISCOVEREDINTHEDEVO NIANSTRATAINTHELATE1980S).ITSGEOLOGICALSETTING ANDMETALLOGENICEVOLUTIONARESIMILARTOT…     

Naquite,FeSi, a New Mineral Species from Luobusha,Tibet, Western China

A new mineral species, named naquite(FeSi), is found in the podiform chromitites of the Luobusha ophiolite in Qusong County, Tibet, China. The detailed composition is Fe 65.65, Si 32.57 and Al 1.78 wt%. The mineral is cubic, space group P213. The irregular crystals range from 15 to 50 μm in diameter and form an intergrowth with luobusaite. Naquite is steel grey in color, opaque, with a metallic lustre and gives a grayish-black streak. The mineral is brittle, has a conchoidal fracture and no apparent cleavage. The estimated Mohs hardness is 6.5, and the calculated density is 6.128 g/cm3. Unit-cell parameters are a 4.486 (4) ?, V 90.28 (6) ?3, Z=4. The five strongest powder diffraction lines [d in ? (hkl) (I/I0)] are: 3.1742 (110) (40), 2.5917(111) (43), 2.0076 (210) (100), 1.8307 (211) (65), and 1.1990 (321) (36). Originally called ‘fersilicite’, the species and new name have now been approved by the CNMNC (IMA 2010–010).     

Cu在TaN(111)表面团聚行为的分子动力学模拟

原子层沉积(ALD) 是下一代超大规模集成电路的首选工艺, 但是Cu籽晶层在阻挡层上的团聚限制了ALD工艺在半导体工业中的应用.目前对Cu在阻挡层TaN表面的团聚机理和行为还缺乏足够的理论认识, 为此利用第一性原理密度泛函理论(DFT) 对不同覆盖度下Cu原子在TaN (111) 表面的吸附能和电荷转移进行了研究, 结果显示, Cu在TaN (111) 表面的吸附强度随着Cu覆盖度的增加而减弱.利用从头算分子动力学模拟了500K温度下Cu单分子层在TaN (111) 表面的吸附动力学行为, 结果表明, 在这一典型的ALD温度下, Cu层在TaN (111) 表面发生团聚, 与实验中的观察结果相符.      

Condolences to Academician CHEN Guoda

Mr. CHEN Guoda, founder and editor-in-chief of two intemational journals GEOTECTONICA et METALLOGENIA (Chinese edition) and GEOTECTONICA et METALLOGENIA (English edition) passed away on April 8, 2004 at the age of 93, after failing to respond to meticulous medical treatment. He was a distinguished academician of Chinese Academy of Sciences, a state first class professor, the founder and the first president of Changsha Institute of Geotectonics, Chinese Academy of Sciences (CIGCAS), member of the academic steering     

第三届《地学前缘》编辑委员会及编辑部成员

名誉主编Honorary Editors-in-Chief:王鸿祯WANG Hong-zhen涂光炽TU Guang-chi董申保DONG Shen-bao主编Editor-in-Chief:翟裕生ZHAI Yu-sheng副主编Deputy Editors-in-Chief:马宗晋MA Zong-jin潘懋PAN Mao王成善WANG Cheng-shan马鸿文MA Hong-wen张立飞ZHANG Li-fei邓军DENGJun王小龙(常务副主编Standing)WANG Xiao-long国内编委Members of Editorial Board(按汉语拼音字母为序in order of the Chinese phonetic alphabet):安芷生AN Zhi-sheng常印佛CHANG Yin-fo陈骏CHENJun陈永顺CHEN Yong-shun戴金星DA…     

第三届《地学前缘》编辑委员会

名誉主编Honorary Editors-in-Chief:王鸿祯WANG Hong-zhen涂光炽TU Guang-chi董申保DONG Shen-bao主编Editor-in-Chief:翟裕生ZHAI Yu-sheng副主编Deputy Editors-in-Chief:马宗晋MA Zong-jin潘懋PAN Mao王成善WANG Cheng-shan马鸿文MA Hong-wen张立飞ZHANG Li-fei邓军DENGJun王小龙(常务副主编Standing)WANG Xiao-long国内编委Members of Editorial Board(按汉语拼音字母为序in order of the Chinese phonetic alphabet):安芷生AN Zhi-sheng常印佛CHANG Yin-fo陈骏CHENJun陈永顺CHEN Yong-shun戴金星DA…     

第三届《地学前缘》编辑委员会及编辑部成员

名誉主编Honorary Editors-in-Chief:王鸿祯WANG Hong-zhen涂光炽TU Guang-chi董申保DONG Shen-bao主编Editor-in-Chief:翟裕生ZHAI Yu-sheng副主编Deputy Editors-in-Chief:马宗晋MA Zong-jin潘懋PAN Mao王成善WANG Cheng-shan马鸿文MA Hong-wen张立飞ZHANG Li-fei邓军DENGJun王小龙(常务副主编Standing)WANG Xiao-long国内编委Members of Editorial Board(按汉语拼音字母为序in order of the Chinese phonetic alphabet):安芷生AN Zhi-sheng常印佛CHANG Yin-fo陈骏CHENJun陈永顺CHEN Yong-shun戴金星DA…     

马斯京根法的矩阵方程求解法

众所周知,马斯京根法是一个应用非常广泛的线性汇流方法,但在实时预报中却难以应用。其原因在于:马斯京根法(包括分段演算方法)的数学形式不适合于实时预报的要求。实时预报一般要求一个线性系统的动态方程能够写成如下的向量形式: X(t 1)=ΦX(t) BU (1) 式中:Φ、B为状态转移矩阵和输入分配矩阵;X为状态向量;U为输入向量。     

从高铁淋洗合格液中回收铀

某铀矿水冶厂淋洗合格液中含有大量的铁，沉淀的“111”产品中杂质高。产品(干基)铀品位只有20％～30％，达不到国家规定的收购标准，生产面临停产危险。利用本试验，通过碳酸盐沉淀法分离铀与铁等杂质后，生产的“111”产品(干基)铀品位超过50％，达到国家一级品标准。目前，该水冶厂正在按此法生产“111”产品。     

金刚石中分子氢的赋存状态研究

金刚石中分子氢的定向红外光谱研究表明在垂直于(100),(110)和(111)三个方向上所测得分子氢的浓度是不相同的,且不同样品中的变化趋势也不同,即分子氢在金刚石中的定向性不明显;MNDO法计算结果显示分子氢在金刚石中的稳定程度大小关系依次为沿〈111〉定向的键心与反键心组合(a.b+b.c)〉六角体空隙(H)〉四面体空隙(T1)〉菱形中心(C1＝C2)〉四面体空隙(T2).     

GPS观测结果反映的南迦巴瓦地区地壳形变特征

正本文将南迦巴瓦构造结地区(经度:88～104°E、纬度:20～34°N)共400多个GPS站点的速度资料通过球面相似变换,归化到"印度板块整体固定"参考框架下,整合后的GPS站点速度矢量通过选用印度板块上相对稳定的21个IGS站点(BELP、ISRR、MABU、DHAR、IITB、UDAI、DELH、BHOP、KODI、BAN2、PLNI、IISC、CHEN、MANP、HYDE、IITK、LUCK、BHUP、BHUB、DHAN、DURG)     

太平洋海山钴结壳资源量估算

为合理地估算出太平洋海山钴结壳资源量, 基于我国西太平洋海山钴结壳拖网采样调查资料以及对太平洋海山钴结壳资源分布规律和钴结壳矿区圈定参数指标的深入研究, 创造性地按海山不同高度、不同洋壳年龄赋予不同结壳厚度, 进而首次计算出太平洋海山干结壳资源量为(507.06~1 014.11)×108 t, 锰为(111.15~222.29)×108 t, 钴为(3.04~6.08)×108 t, 镍为(2.23~4.46)×108 t, 铜为(0.66~1.32)×108 t, 结壳分布面积为2 062 862 km2.通过Co通量与结壳Co沉积量、结壳厚度的相关分析表明, 赋予不同洋壳年龄段的结壳厚度是理论厚度的6.10%~12.20%, 这与Ku et al.得出"结壳生长时间只占其整个生命史4%"的认识非常相近, 说明所赋结壳厚度基本合理, 得出的结壳资源量基本正确.为整个大洋海盆内海山钴结壳资源量的估算提供了新方法.      

Abstracts of Acta Geologica Sinica (Chinese Edition) Vol. 75, No. 4,2001

Branching Macroalgal Fossils of the Early-Middle Cambrian Kaili Formation from Taijiang, Guizhou Province, China YANG Ruidong~(1, 2), MAO Jiaren~2, ZHAO Yuanlong~2, CHEN Xiaoyuan~2 and YANG Xinglian~2 (1. Guizhou Institute of Geochemistry, CAS, Guiyang 550002; 2. Guizhou University of Technology, Guiyang 550003) In this paper, 5 genera and 7 species of the branching macroalgal fossils of the Early-Middle Cambrian Kaili Formation from Taijiang County, Guizhou Province are described, they are: Marpolia spissa Walcott, Marpolia aequalis Walcott, Doushantuophyton lineare Chen, Guizhouella ramulosa Yang     

环渤海地区地下水库开发利用前景

本文从补给水源、水文地质、环境地质、生态环境效应以及经济效益等方面,分析了环渤海地区建设地下水库的可行性。划分了滨海河谷型、山间盆地(河谷)型、山前冲洪积平原(扇)型、冲积平原埋藏古河道型等四种地下水库类型,并对地下水库的调蓄能力和新增地下水开采量进行了评价。其中,在辽宁、山东沿海地区尚有宜建滨海河谷型地下水库库址35处,总库容28.85×108m3,可新增地下水开采资源2.60×108m3;有宜建山间盆地(河谷)型4处,总库容1.22×108m3,可新增地下水开采资源0.24×108m3。目前,区内已建滨海河谷型地下水库8处,新增地下水开采资源2.89×108m3,取得显著的经济、社会和环境效益。因此,在滨海河谷等地区选择适宜地段,建设地下水库,对于缓解环渤海地区缺水、改善水质、防止海水入侵等均有重要现实意义。