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| 1 | 鄂尔多斯盆地东北缘侏罗系铀矿化与有机质的某些关联显示文摘许多中—新生代盆地沉积充填中铀矿化显著,有机质丰富,铀矿与有机能源同盆共存,铀矿化与有机质内在关联备受关注。鄂尔多斯盆地东北缘东胜—准格尔旗地区侏罗系直罗组下部铀矿化砂岩平均铀含量(128.4×10-6)高出含铀泥岩2个数量级,铀富集成矿以砂岩为主岩并伴随显著的方解石化、高岭石化等低温热液蚀变;铀矿化岩层富有机质,其氯仿沥青'A'中非烃和沥青质占优势,饱和烃/芳香烃比值多大于1,Ⅱ型有机质为主。铀矿化砂岩的有机碳平均丰度(0.47%)比含铀泥岩低1个数量级,前者铀含量与有机质丰度呈负相关,有机质的氯仿沥青'A'含量0.0056%~0.0341%、A/C比值为0.79%~32.34%,处在成熟阶段;而后者铀含量与有机质丰度呈正相关,有机质的氯仿沥青'A'含量0.0049%~0.4937%、A/C比值为0.12%~17.78%,处在未成熟阶段。砂岩中铀富集成矿明显经历了伴随有机质氧化、成熟和分解的晚成岩—后生期含铀热液过程,而泥岩中的铀主要是同生—早成岩阶段粘土有机吸附沉积的。铀矿化砂岩中热液蚀变方解石的δ13CV-PDB=-2.7‰~-14.0‰,δ18OV-SMOW=18.4‰~20.0‰;热液蚀变高岭石的δ18OV-SMOW=12.6‰~13.8‰,δD(水)V-SMOW=-116‰~-133‰,与高岭石平衡流体的δ18O(水)V-SMOW=1.8‰~6.1‰,指示含铀成矿热液中CO2主要是有机质氧化脱羟基产物,水来自经过富含有机质地层循环演化了的盆地流体。研究区盆地流体中铀元素在砂岩层内流动和沉淀成矿与地层中有机质的氧化分解相伴发生。 | 薛伟 薛春纪 CHI Guoxiang 涂其军 康明 高亚龙 | 2009 | 地质论评2009，55，3： | 20 |
| 2 | 利用H_2O-Nacl-CaCl_2体系水盐化合物和冰的融化温度计算NaCl/(Nacl+CaCl_2)比值和盐度的方程显示文摘The composition of fluid inclusions in the H_2O-NaCl-CaCl_2 system has been generally graphically estimated using the melting temperatures of hydrohalite(T_(m-HH))and ice(T_(m-ice)).Here we present two equations that can be used to calculate the relative proportion of NaCl(i.e.,NaCl/[NaCl+CaCl_2],or X_(NaCl))and the total salinity( i.e.,NaC1 + CaC12,wt% )for fluid inclusions with ice as the last melting phase.X_(NaCl)can be calculated from T_(m-HH)using the following equation: y=(a+bx)^(-1/c) where y is X_(NaCl),x is T_(m-HH),a=0.33124402,b=-0.031518028,and c=0.22932736.In the cases where only T_(m-ice)is measured and T_(m-HH)is not known,T_(m-ice)can be used as the maximum possible TIn.nil to calculate the maximum value of X_(NaCl)using the above equation.In these cases,the following equation can be used to calculate the maximum total salinity: y=(a+bx+cx^2)^(-1) where y is salinity,x is T_(m-HH),a=0.057184817,b=0.00078565757,and c=5.7262766E-6.Because the isothems in the field of ice are sub-parallel to the NaCl-CaCl_2 binary side in the H20-NaC1-CaC12 ternary system,the errors in salinity calculation introduced by the above approximation are small(less than 2 wt% ).A Windows program for calculation of X_(NsCl)and salinity is available at: http://gffzz48c1abc75f37476dhp9ubv0xqqp0o60uk.ffgz.tsg.suse.edu.cn/~chiguox. | GuoXiang CHI~(1*) Pei NI~(2**) 1.Department of Geology,University of Regina,3737 Wascana Parkway,Regina,Saskatchewan,Canada S4S 0A2 2.State Key Laboratory for Mineral Deposit Research,Institute of Geo-fluid Research,Department of Earth Science,Nanjing University,Nanjing 210093,China | 2007 | 岩石学报2007，23，1： | 18 |
| 3 | Effects of hydrocarbon generation on fluid flow in the Ordos Basin and its relationship to uranium mineralization显示文摘诺思中国的 Ordos 盆是不仅一个重要的铀矿化作用省,而且在中国的油,气体和煤的一个主要制片人。在铀矿化作用和烃之间的基因关系被认出了由很多以前的研究,而是它很好没以盆液体的水动力学被理解流动。我们在以前的研究证明了在 Ordos 侏罗记节的上面的部分的白垩纪铀矿化作用的优先的本地化可能与在向上的流动之间的接口有关,减少液体并且向下流动,氧化液体。这个接口可能被在与不平衡沉积压缩有关的液体过压之间的相互影响控制了并且它驾驶了向上的流动,和地志的地势,它开车了向下流动。在这研究,我们执行了为对液体过压的发展的油和煤气的产生的贡献的数字建模,除了沉积压缩并且加热。当烃产生没被考虑时,我们的结果显示当烃产生被考虑时,液体过压非常与模拟比较在白垩纪期间被加倍。而且,在沉积的结束的液体过压驱散相对没有烃产生盒子慢下来。这些结果建议烃产生可能在铀矿化作用,不是仅仅在规定减少为矿化作用要求的代理人,而且在贡献驱动力维持向上的流动起了一个重要作用。 | Chunji Xue Guoxiang Chi Wei Xue | 2011 | Geoscience Frontiers2011，2，3： | 12 |
| 4 | An overview of hydrodynamic studies of mineralization显示文摘液体流动是热水的矿化作用的不可分的部分,并且它的分析和描述组成一个矿化作用模型的重要部分。矿化作用的水动力学学习处理分析驱动力,液体压力政体,液体流动率和方向,并且他们与矿化作用的本地化的关系。这份报纸考察矿化作用的水动力学研究的原则和方法,并且为矿石沉积物研究和矿物质探索讨论他们的意义和限制。流动可能与液体过压,地志的消除,构造变丑,和液体密度有关的液体的驱动力由于加热或咸度变化变化,取决于特定的地质的环境和矿化作用过程。学习方法可以被分类进三种类型,放大了(领域) 观察,显微镜的分析,并且数字建模。放大了的特征陈述语气显著地 overpressured (特别 lithostatic 或 supralithostatic ) 液体系统包括水平静脉,沙注射堤,和水力的角砾岩。显微镜的研究,特别液体包括的 microthermometry 和液体包括飞机(联邦信息处理标准) 的 microthermometry 能关于液体温度,压力,和液体结构的关系提供重要信息,因此抑制液体流动模型。数字建模能被执行解决管理液体流动,热转移,岩石变丑和化学反应的部分微分方程,以便模仿液体的分发在 2D 或 3D 空间并且整个时间的压力,温度,液体流动率和方向,和矿物质降水或溶解。矿化作用的水动力学研究的结果能提高我们热水的沉积物的形成过程的理解,并且能在矿物质探索直接或间接地被使用。 | Guoxiang Chi Chunji Xue | 2011 | Geoscience Frontiers2011，2，3： | 11 |
| 5 | A New Method for Determining Fluid Compositions in the H_2O-NaClCaCl_2 System with Cryogenic Raman Spectroscopy显示文摘Raman peaks of various hydrates in the H2O-NaCl-CaCl2 system have been previously identified,but a quantitative relationship between the Raman peaks and XNaCl(i.e.,NaCl/(NaCl+CaCl2)) has not been established,mainly due to the difficulty to freeze the solutions.This problem was solved by adding alumina powder to the solutions to facilitate nucleation of crystals.Cryogenic(-185oC) Raman spectroscopic studies of alumina-spiced solutions indicate that XNaCl is linearly correlated with the total peak area fraction of hydrohalite.Capsules of solutions made from silica capillary were prepared to simulate fluid inclusions.Most of these artificial fluid inclusions could not be totally frozen even at temperatures as low as-185 oC,and the total peak area fraction of hydrohalite is not correlated linearly with XNaCl.However,the degree of deviation(?XNaCl) from the linear correlation established earlier is related to the amount of residual solution,which is reflected by the ratio(r) of the baseline 'bump' area,resulting from the interstitial unfrozen brine near 3435 cm-1,and the total hydrate peak area between 3350 and 3600 cm-1.A linear correlation between ?XNaCl and r is established to estimate XNaCl from cryogenic Raman spectroscopic analysis for fluid inclusions. | CHI Guoxiang CHU Haixia Ryan SCOTT CHOU I-Ming | 2014 | Acta Geologica Sinica(English Edition)2014，88，4： | 7 |
| 6 | Hydrodynamic regime as a major control on localization of uranium mineralization in sedimentary basins显示文摘Uranium deposits in sedimentary basins can be formed at various depths,from near surface to the basement.While many factors may have played a role in controlling the location of mineralization,examination of various examples in the world,coupled with numerical modeling of fluid flow,indicates that the hydrodynamic regime of a basin may have exerted a major control on the localization of uranium deposits.If a basin is strongly overpressured,due to rapid sedimentation,abundance of low-permeability sediments or generation of hydrocarbons,fluid flow is dominantly upward and uranium mineralization is likely limited at shallow depths.If a basin is moderately overpressured,upward moving fluids carrying reducing agents may meet downward moving,oxidizing,uranium-bearing fluids in the middle of the basin,forming uranium deposits at moderate depths.If a basin is weakly or not overpressured,either due to slow sedimentation or dominance of high-permeability lithologies,minor topographic disturbance or density variation may drive oxidizing fluids to the bottom of the basin,leaching uranium either from the basin or the basement,forming unconformity-type uranium deposits.It is therefore important to analyze the hydrodynamic regime of a basin in order to predict the most likely type and location of uranium deposits in the basin. | CHI GuoXiang XUE ChunJi | 2014 | Science China Earth Sciences2014，57，12： | 6 |
| 7 | Hydrodynamic analysis of clastic injection and hydraulic fracturing structures in the Jinding Zn-Pb deposit,Yunnan,China显示文摘Jinding Zn-Pb 存款通常被考虑了以一个相对被动的方法从传播 basinal 液体形成了,与液体流动被结构和沉积外形正在控制,类似于许多另外的招待沉积的底金属存款。然而,几最近的研究在 Jinding 存款的开的坑揭示了沙注射结构,恼人的角砾岩,和水力的破裂的存在并且建议存款从 overpressured 液体的爆炸版本被形成。这研究报导液体的新观察过压相关从地下的活动方式(Paomaping 和 Fengzishan ) 组织,它比在开的坑显示出更清楚的横切的关系。观察结构包括:1 ) 沙(楳湧晩捩湡汴 ? 潣瑮楲畢整琠? 桴 ? 潴慴? 票牤 ' 夷典? | Guoxiang Chi Chunji Xue Hairuo Qing Wei Xue Jiangwei Zhang Yunqiang Sun | 2012 | Geoscience Frontiers2012，3，1： | 5 |
| 8 | 安徽铜陵凤凰山铜(金)矿床矽卡岩型与斑岩型复合成矿作用流体研究显示文摘凤凰山铜(金)矿床产于燕山晚期花岗闪长岩及石英二长闪长斑岩与三叠系碳酸盐岩的接触带,先后包括矽卡岩型和斑岩型两期矿化,并可细分为9个成矿阶段。矿石中广泛出现角砾状和细脉状、网脉状构造。流体包裹体特征及显微冷热台测温资料表明,成矿流体存在过沸腾和局部超高压等现象。两个成矿期都经历了从高温高盐度向低温低盐度的转变,成矿溶液的主要成分也由钾钠型变成了钠钙型。来源于岩浆热液的早期含矿流体与来自围岩的地下水热液的混合可以解释成矿流体的这种演化。 | 赖健清 Guoxiang Chi 彭省临 杨斌 邵拥军 | 2006 | 矿床地质2006，25，S1： | 5 |
| 9 | Hydrodynamic Links between Shallow and Deep Mineralization Systems and Implications for Deep Mineral Exploration显示文摘Deep mineral exploration is increasingly important for finding new mineral resources but there are many uncertainties.Understanding the factors controlling the localization of mineralization at depth can reduce the risk in deep mineral exploration.One of the relatively poorly constrained but important factors is the hydrodynamics of mineralization.This paper reviews the principles of hydrodynamics of mineralization,especially the nature of relationships between mineralization and structures,and their applications to various types of mineralization systems in the context of hydrodynamic linkage between shallow and deep parts of the systems.Three categories of mineralization systems were examined,i.e.,magmatic-hydrothermal systems,structurally controlled hydrothermal systems with uncertain fluid sources,and hydrothermal systems associated with sedimentary basins.The implications for deep mineral exploration,including potentials for new mineral resources at depth,favorable locations for mineralization,as well as uncertainties,are discussed. | CHI Guoxiang XU Deru XUE Chunji LI Zenghua Patrick LEDRU DENG Teng WANG Yumeng SONG Hao | 2022 | Acta Geologica Sinica(English Edition)2022，96，1： | 5 |
| 10 | Geochemical Characteristics and Sources of Ore-forming Fluids of the Mayuan Pb-Zn Deposit,Nanzheng,Shaanxi,China显示文摘The Mayuan stratabound Pb-Zn deposit in Nanzheng,Shaanxi Province,is located in the northern margin of the Yangtze Plate,in the southern margin of the Beiba Arch.The orebodies are stratiform and hosted in breciated dolostone of the Sinian Dengying Formation.The ore minerals are primarily sphalerite and galena,and the gangue minerals comprise of dolomite,quartz,barite,calcite and solid bitumen.Fluid inclusions from ore-stage quartz and calcite have homogenization tempreatures from 98 to 337℃ and salinities from 7.7 wt%to 22.2 wt%(NaCl equiv.).The vapor phase of the inclusions is mainly composed of CH_4 with minor CO_2 and H_2S.The δD_(fluid) values of fluid inclusions in quartz and calcite display a range from-68‰ to-113‰(SMOW),and the δ^(18)O_(fluid)values calculated from δ^(18)O_(quartz) and δ^(18)O_(calcite) values range from 4.5‰ to 16.7‰(SMOW).These data suggest that the ore-forming fluids may have been derived from evaporitic sea water that had reacted with organic matter.The δ^(13)C_(CH4) values of CH_4 in fluid inclusions range from-37.2‰ to-21.0‰(PDB),suggesting that the CH_4 in the ore-forming fluids was mainly derived from organic matter.This,together with the abundance of solid bitumen in the ores,suggest that organic matter played an important role in mineralization,and that the thermochemical sulfate reduction(TSR) was the main mechanism of sulfide precipitation.The Mayuan Pb-Zn deposit is a carbonate-hosted epigenetic deposit that may be classified as a Mississippi Valley type(MVT) deposit. | LIU Shuwen LI Ronxi CHI Guoxiang ZENG Rong LIU Lingfang SHI Shun | 2015 | Acta Geologica Sinica(English Edition)2015，89，3： | 5 |
| 11 | Microstructural analysis of a subhorizontal gold-quartz vein deposit at Donalda,Abitibi greenstone belt,Canada:Implications for hydrodynamic regime and fluid-structural relationship显示文摘The Donalda gold deposit in the southern part of the Archean Abitibi greenstone belt consists mainly of a subhonzontal gold-quartz vein perpendicular to subvertical shear zones.The 0.3—0.5 m thick vein is characterized by vein-parallel banding structures indicating multiple episodes of fracture opening and mineral precipitation.Measurement of the c-axis of primary growth quartz indicates that quartz preferentially grew perpendicular to the fracture,suggesting open space filling and/or extensional nature of the fracture.Measurement of the orientations of microfractures,veinlets and fluid—inclusion planes(FIPs) crosscutting primary growth quartz indicates that the vein minerals were subject to a vertical maximum principal stress(σ_1),which is inconsistent with the subhorizontalσ_1 inferred from the regional stress field with N—S shortening.This apparent discrepancy is explained by invoking episodic fluid pressure fluctuation between supralithostatic and hydrostatic regimes accompanied by episodic opening and closing of the sub-horizontal fracture.When fluid pressure was higher than the lithostatic value,the fracture was opened and primary growth minerals were precipitated,whereas when fluid pressure decreased toward the hydrostatic value,the hanging wall of the fracture collapsed,causing collision of protruding primary growth minerals from both sides of the fracture and resulting in formation of vein-parallel deformation bands.The columns where the two facing sides of the fracture collided were subject to higher-than-lithostatic stress due to the bridging effect and reduced support surface area,explaining the development of verticalσ_1.This hypothesis is consistent the fault-valve model,and explains the flipping ofσ_1 without having to change the regional stress field. | Guoxiang Chi Jayanta Guha | 2011 | Geoscience Frontiers2011，2，4： | 3 |
| 12 | Structural deformation, metallogenic epoch and genetic mechanism of the Woxi Au-Sb-W deposit, Western Hunan Province, South China显示文摘The remobilization,migration,precipitation,and enrichment of ore-forming elements are closely related to structures.Therefore,detailed regional and ore-field structural analyses are critical for determining the genesis of a mineral deposit.The Jiangnan Orogenic Belt(JOB)is an important gold polymetallic metallogenic belt in South China,which is characterized by multiple periods of gold mineralization in the Paleozoic and Mesozoic.However,the genesis of these gold polymetallic deposits is still not well understood due to a lack of systematic research on the regional geology,ore-controlling structures and metallogenic mechanism.In this study,a detailed structural survey at the surface and in the subsurface tunnels was conducted on the Woxi Au-Sb-W deposit,the genesis of which is relatively controversial among the gold polymetallic deposits in the JOB due to poor structural constraints.In addition,a wolframite U-Pb dating was carried out to further constrain the relationship between structures and mineralization.Based on the results of these studies,together with those from previous studies,it is proposed that the Woxi deposit and surrounding areas likely underwent six periods of regional deformation,which are constrained in time and geodynamic setting.Furthermore,we present a systematic discussion on the roles of ore-controlling structures in the transportation,distribution,and deposition of ore-forming elements and localization of orebodies.According to the wolframite dating results,structural analyses,and previous data,we propose that the Woxi Au-Sb-W deposit was formed in two stages during the Yanshanian:a W(wolframite)-Au mineralization stage at ca.140 Ma and an Au-Sb-W(scheelite)mineralization stage at<130 Ma.These mineralizing events are interpreted to have a tight relationship with tectonic reactivation,and the ore-forming fluids were derived from deep sources,including those of magmatic or metamorphic origins.The Woxi deposit can therefore be classified as an“intracontinental reactivation-type”,and the mineralization is related to lithospheric extension caused by plate retreat,retention,and delamination following the cessation of westward subduction of the Paleo-Pacific Plate beneath the East Asian continent. | Bin LI Deru XU Daoyuan BAI Guoxiang CHI Junfeng DAI Cheng GAO Teng DENG Shaohao ZOU Wen MA Guojian WANG Yuexin LING Guangqian ZENG Yinmin LI | 2022 | Science China Earth Sciences2022，65，12： | 2 |
| 13 | Basin fluid flow models related to Zn - Pb mineralization in the southern margin of the Maritime basin, Eastern Canada 显示文摘 | Guoxiang Chi Marline M S | 1998 | Economic Geology1998，93，6： | 1 |
| 14 | Epigallocatechin-3-gallate-induced stress signals in HT-29 human colon adenocarcinoma cells显示文摘 | Chi C Guoxiang S Vidya H | 2003 | Carcinogenesis2003，24，8： | 1 |
| 15 | Sand injection and Liquefaction structures in the Jinding Zn-Pb deposit,Yunnan, China: indicators of an overpressured fluid system and implications for mineralization 显示文摘 | Chi Guoxiang Xue Chunji Lai Jianqing | 2007 | Economic Geology2007，102，4： | 1 |
| 16 | Relationships between Hydrodynamics of Mineralization and Tectonic Settings显示文摘 | Guoxiang CHI Ge LIN | 2014 | Acta Geologica Sinica ‐ English Edition2014，，2： | 1 |
| 17 | Formation of the Campbell-Red Lake gold deposit by H2O-poor, CO2-dominated fluids显示文摘 | Chi Guoxiang Dube B Williamson K Williams-Jones A E | 2006 | Miner Deposit2006，40，67： | 1 |
| 18 | The Lower Silurian Sayabec Formation in northern Gasp e: carbonate diagenesis and reservoir potential显示文摘 | Denis Lavoie Guoxiang Chi | 2001 | Bulletin of Canadian Petroleum Geollgy2001，49，2： | 1 |
| 19 | Multiple and prolonged porphyry Cue Au mineralization and alteration events in the Halasu deposit, Chinese Altai, Xinjiang,northwestern China显示文摘The Halasu area is located in the southeastern margin of the Chinese Altai in Xinjiang, China. It is part of the Altaid orogenic collage where a number of porphyry-type Cue Moe Au deposits have been discovered in recent years. Geological mapping and drilling indicate the presence of various mineralized porphyritic intrusions in the Halasu Cue Au deposit, which is currently under exploration. Ue Pb dating of zircon crystals from four different mineralized porphyries reveals three significantly different ages of magmatic intrusion, i.e., ca. 372e382 Ma granodioritic porphyry and porphyritic granite, ca. 266 Ma quartz monzonitic porphyry, and ca. 216 Ma quartz dioritic porphyry. Ree Os dating of molybdenite from veinletdissemination ores in the granodioritic porphyry yields an age of mineralization of ca. 377 Ma, and Ar e Ar dating of K-feldspar from K-feldsparequartzechalcopyrite veins produces ages of ca. 269 and ca.198 Ma. The mineralization(and alteration) ages correspond broadly to the three episodes of magmatic intrusion, suggesting three overprinting porphyry mineralization events that are significantly separated in time. The first episode of porphyry intrusion and mineralization may be related to the magmatic arc being above a plate subduction zone, and the second was formed in a late-collisional environment during the closing of the Junggar Ocean, whereas the third episode of mineralization took place in the postcollisional stage. This case study suggests that in orogens where major porphyry deposits have been found in magmatic arc environments, the potential of discovering late- to post-collisional porphyry deposits cannot be neglected; conversely, in orogens where most porphyry deposits have late- to postcollisional ages, more attention should be paid to porphyries that were formed earlier in magmatic arc environments. | Chunji Xue Guoxiang Chi Xiaobo Zhao Ganguo Wu Zhanfeng Zhao Lianhui Dong | 2016 | Geoscience Frontiers2016，7，5： | 1 |
| 20 | Sources of basinal and Mississippi Valley-type mineralizing brines: mixing of evaporated seawater and halite-dissolution brine 显示文摘 | Chi Guoxiang Savard M | 1997 | Chemical Geology1997，143，3： | 1 |
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