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| 1 | 新疆望峰金矿成矿流体研究及其成因意义显示文摘新疆望峰金矿,产于中天山结晶基底中的韧性剪切带内。围岩蚀变和流体包裹体研究表明,成矿过程包括了3个阶段,从早到晚有石英黄铁矿阶段、多金属硫化物阶段和石英碳酸盐阶段,温度分别集中在360~520℃、240~360℃和120~240℃;矿化以第Ⅱ阶段为主。成矿流体的δ18O值变化于1.15‰~2.70‰之间,属于变质热液与大气降水热液的混合流体。包裹体成分表明成矿流体来源较浅,但有利于金矿化;CO2/H2O比值多大于0.026,也有利于成矿。而包裹体捕获压力表明成矿作用发生在5.6~1.2km深度范围,主要发生在1.9km左右;矿化过程与地壳抬升伸展的过程一致,自然亦与碰撞造山体制的矿化规律一致。因此,古生代末期的碰撞造山作用导致了望峰金矿的形成,冰达坂断裂两侧是寻找望峰式金矿的有利地带。石英红外光谱分析表明,CO2光密度(D2)及其与H2O光密度(D1)的比值(D2/D1)普遍较高,指示矿化较强;D2>0.55和D2/D10.26是该区富金样品的标志。 | Chen Yanjing 1) Li Xin 1) Jing Jun 2) Gao Xiuli 1) Chen Huayong 1) Wu Xidan 2) Wu Dehua 2) ( 1) Department of Geology, Peking University 2)Team 15 of Gold Headquarters, MMIC, Urumqi ) | 1998 | 地球学报(中国地质科学院院报)1998,19,2: | 18 |
| 2 | A founder COL17A1 splice site mutation leading to generalized atrophic benign epidermolysis bullosa in an extended inbred Palestinian family from Israel 显示文摘 | Whittock NV Sher C Gold 1 | 2003 | Genet Med2003,5,6: | 1 |
| 3 | Hypertension and Hypothalamo-Pituitary-Adrenal Axis Hyperaetivity Affect Frontal Lobe Integrity显示文摘 | Gold SM Ihiobek 1 Rogeis K | 2005 | J Clin Endoerinol Metab2005,90,6: | 1 |
| 4 | Identification of bottlenecks in Escherichia coli engineered for the production of CoQ10显示文摘 | Cluis CP Ekins A Narcross 1 Jiang H Gold ND Burja AM Martin VJJ | | 0,,13: | 1 |
| 5 | Auriferous karst breccias in East Hebei Province, China显示文摘RECENTLY, a new type of gold deposits was discovered along the Great Wall in East Hebei Province, thatis the so-called ’Great Wall Type gold deposit’, a-kind of carbonate breccias with micro-disseminated(invisible) gold hosted in Middle-Proterozoic carbonate rocks. In the 30th IGC in August 1996 in Beijing, it was reported as the largest belt of Carlin-type gold deposits in China, and over 1 000 tons of goldreserves were estimated (oral report). Up to now, very little is known about its genesis. Our researchshows large differences between Great Wall type and Carlin-type gold. Most remarkable is that gold ishosted in carbonate breccias, to be precise, in cements (matrix) of breccias. Because of this, we consider the breccias as a key to understanding the genesis. In some unpublished reports, breccias were regarded as hydrothermal eruptive breccias, fractured breccias, sedimentary breccias, etc. The present | LIU Jianming~1, LIU Yanxuan~2, TAN Jun~1, CHEN Xurui~1 and HUO Weiguo~1 1. Research Center for Mineral Resources Exploration, Chinese Academy of Sciences, Beijing 100101, China 2. Qingheyan Gold Mine, Qinglong County, Hebei 066500, China | 1999 | Chinese Science Bulletin1999,44,S2: | 1 |
| 6 | The role of stress-response systems for the pathogenesis and progression of MS 显示文摘 | Gold SM Mohr DC Huitinga 1 | 2005 | Trends Immunol2005,26,12: | 1 |
| 7 | A New Network Planning Method Based on the Connection Number a+bi of SPA | HUANG De\|cai\+1,\ ZHAO Ke\|qin\+2,\ ZHANG Ping\+1 1.College of Information Engineering , Zhejiang University of Technology Hangzhou 310014, China 2.Zhejiang Gold Machine Works, Zhuji 311811, China | 2000 | Systems Science and Systems Engineering2000,10,3: | 0 |
| 8 | Mercury consumption and contamination of environment in gold mining in China显示文摘Amalgamation (sluice methods) used in the extraction of golds from ores and concentrates causes mercury contamination of the environment, which is increasingly concerned in China. The mercury specific consumption in the technical procedures has been evaluated based on the investigation of 33 mines. The average consumption of Hg is 14.6 g/ton raw ores, the ratio of Hg to gold is 6.35 g(Hg)/g(Au), total consumption of Hg in 1995 was 80 tons. The mercury amount entering into environment was 20 tons/a. Up to now 13.26% total gold produced in China is still using amalgamation, although prohibition of amalgamation since 1985 was officially proclaimed. At present, the amalgamation usage tendds to go up in some companies becasue of the benefic promotion. The irreversible mercury consumption was dispersed in the air(50%), tailing (23%) and partly(27%) entered into the downward products in the production, such as ore concentrates which was refined in the plants and caused pollution of environment near the smelter. | HE Yong\|liang\+1, LIN Yu\|huan\+\{2*\}, LI Wen\|cheng\+3 (1. China National Gold Management Bureau, Beijing, China 2. Research Center for Eco Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China 3. Institute of Geography in | 2000 | Journal of Environmental Sciences2000,12,S1: | 0 |