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- Keywords paleochannel;sandstone type uranium deposit;ore formation conditions;Pliocene;Wulanhua basin; 古河道;砂岩型铀矿;成矿条件;上新统;乌兰花盆地;
- Qinglong Dachang is a large antimony(Sb)ore deposit in southwestern region of Guizhou province.Puqing exploration zone possesses good conditions for ore formation. 晴隆大厂锑矿田是黔西南地区大型的锑矿田,其西部的普晴勘查区具有良好的成矿条件。
- As a special industrial type of copper resources, native copper is formed under a weak alkalic and sulphur-deficient deoxidized environment.Three conditions are necessary during ore formation, i.e. 以湘西九曲湾(麻阳)铜矿和滇东北沿河铜矿为例,结合国外典型自然铜矿床(矿化带),分析了自然铜的成矿学特征及形成条件。
- There are two opinions,alkali metasomatism and skarnization on the Han-xing iron ore formation in China. 邯邢式铁矿为我国一重要铁矿类型,对于邯邢式铁矿的成因存在两种看法,即碱交代成因观点和矽卡岩成因观点。
- We can choose different gel temperature and gelling time according to different formation conditions. 针对不同的地层条件来选择不同的成胶温度和时间。
- The neogenic soil body is of great significance in the study of regional environmental evolution, nutrition element release and secondary ore formation. 摘要土壤新生体对于研究区域环境变化、营养元素释放以及次生成矿作用具有重要意义。
- Analysis of the formation conditions for etching Al film of electrolytic capacitors. 电容器铝箔交流腐蚀过程中腐蚀膜形成条件分析。
- Studies on petrochemistry, geochronology of diagenetic and ore formation, mineralization and ore assessment of Baogutu porphyry copper deposit were done. 本论文分别从矿床地质、岩石化学、成岩成矿年代、成矿作用等方面对包古图斑岩铜矿床做了系统研究。
- Erlian Basin boasts the good formation conditions for lithologic and stratigraphic oil reservoirs. 二连盆地具有形成岩性、地层油藏的良好条件。
- The article emphatically expounds tectonic setting, ore formation, minerogenetic series for the use of mapping of minerogenetic map of nonmetallic ore deposits. 着重介绍构成非金属矿床成矿地质图的构造环境、含矿建造、成矿系列的基本概念,并指出构造环境是主体,控制着含矿建造和成矿系列的形成和分布。
- Archean metamorphic rock of Lamagou formation is the basal source rock of the deposit.Gold in Proterozoic rock of changcheng series was also incorperated in the ore formation. 研究认为拉马沟组变质岩石基底富矿源岩(层),元古界长城系中的金元素亦参与了成矿。
- The paper has analysed the relationship between ore formation and tecton ics,medium structure,microstructure of the Xiangxi gold d eposit,and analysed the ore-formin g mechanism. 本文对湘西金矿的大地构造、中、小构造、显微构造成矿进行了探索,在此基础上作了构造成矿机理分析。
- The hollowness of undrawn filaments is determined by the late of solidification which can bo increased when the formation conditions are Intensified. 发现卷绕丝之中空度受凝固速率控制。强化成形条件,使凝固速率加快,则中空度增加。
- Ore formation was dominated by exhalation-sedimentation, subsequently subjected to metamorphism reformation, superposition of magmatic hydrothermalism and supergenesis. 成矿以喷气-沉积作用为主,其后经历了变质改造、岩浆热液叠加及表生氧化作用。
- To secure successful acidizing, reduce risks and analyze the whole operation and formation conditions, real-time monitoring is very important. 为了酸化施工顺利进行、减小风险以及对施工过程和地层情况分析的需要,实时监测方法的研究十分重要。
- Heat and mass transportation and chemical interaction in a hydrothermal system play a pivot role in dynamical processes of ore formation and pollutant migration. 介质中热质输运-反应体系对于热质成矿、污物迁移等十分重要。
- Dai Jinxing, Song Yan, Dai Chunsen, Chen Anfu and Sun Mingliang.1995.The Origin of Inorganic Gas and Formation Conditions of the Pools.Beijing: Science Press. 戴金星;宋岩;戴春森;陈安福;孙明良.;1995
- Type-C olivine fabric in the Zhimafang garnet peridotite of the southern Sulu ultrahigh-pressure metamorphic terrane:Formation conditions and tectonic implications. 南苏鲁芝麻房石榴石橄榄岩中橄榄石的“C”类组构及其形成条件探讨
- It is therefore of great theoretical and practical significance to investigate the formation conditions and controlling factors of thick cobalt-rich ferromanganese crusts. 因此,开展厚结壳的形成条件及控制因素的研究,具有重要的理论与现实意义。
- All the factors that affect fiber formation are discussed. Optimizing formation conditions and reducing disqualification products lead to a high acrylic fiber quality. 讨论了影响纤维成形的各项因素,通过优化成形条件熏降低产品废丝率,提高腈纶纤维优级品率。