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- Keywords magmatite REE ore forming age Furong orefield; 岩浆岩;稀土特征;成岩成矿时代;芙蓉矿田;
- Li Huimin, Li Huaikun, Lu Songnian.Ore forming age of the Dongping gold ore: The U - Pb zircon dating of the hydrothermal zircon in the ore vein[J].Journal of Earth, 1997, 18(Sup. ) : 176 - 178. [6]李惠民;李怀坤;陆松年.;用矿脉中热液锆石的U-Pb定年确定东坪金矿的成矿时代[J]地球学报;1997;18(增刊):176-178
- The paper analyes interation process among shear, fluid and ore forming process, and discuss the ore forming mechanism. 还对剪切-流体-金矿化相互作用的过程进行了分析,对矿区的成矿机理进行了初步探讨。
- The deep origin of ore forming is a new theory for prospcting in situ leachable sandstone type uranium. 深源成矿论是可地浸砂岩型铀矿地质找矿的一种新思路,在松辽盆地南部铀矿勘查中得到了较好的应用。
- NNE Kuerbin crustal fault and its secondary fault anr the important conditions for ore forming. NNE向库尔滨壳断裂及其次级断裂为成矿的重要地质条件。
- Therefore,the thermoluminescence of Calcite could serve as aindicator of identifying ore forming stages. 方解石热发光曲线特征可作为矿区成矿阶段划分的一个重要标志。
- Isotopic data proved that the forming age of the Sertengshan group is Neoarchean. 顶部与中新元古界白云鄂博群、渣尔泰山群不整合接触。
- The variation of type of gold deposits in Wutai area shows complexities of ore forming process in Early Precambrian period. 本区早前寒武纪多类型金矿床的形成 ,表明了五台地区早前寒武纪金矿成矿作用的复杂性和矿床成因的多样性 ,也为认识我国早前寒武纪金矿成矿作用特点创造了极为有利的条件。
- The mag matic water is a component of ore forming hydrothermal water.And the gold mater ial sources stem from the wall rock and the granite. 认为在热液蚀变作用过程中,稀土元素保持惰性,成矿热液与岩浆热液有关,赋矿围岩及矿区花岗岩提供了成矿物质。
- The conclusion is reached that interforma-tional slip of country rocks is an effective mechanism for ore forming element activation and reenrichment. 并且认为含矿围岩的层间滑动是成矿元素后期活动再富集的有效机制。
- Wan Tianfeng and Zhu Hong.1996.The maximum sinistral strike-slip and its forming age of Tancheng-Lujiang fault zone.Geological Journal of China Universities,2 (1):14-27. [6]万天丰;朱鸿.;1996
- It has more intensive realistic sense for analyzing the ore forming geological features of black talc and making application study on the black talc. 分析黑滑石的成矿地质特征,进行黑滑石的应用研究具有较强的现实意义。
- Qinling is an intracontinental polycyclic complex collision orogen, and also is one of the most important polymetallic ore forming belts. 秦岭造山带是一个多旋回复合大陆碰撞造山带;是我国重要的多金属成矿带之一.
- The paper deals with geochemical characteristics of ore forming and halo forming processes of Au deposits with several metallogenic stages. 论述了金矿多期多阶段叠加成矿成晕的地质地球化学特征。
- The valley was formed ages ago when an ancient river ran dry. 这山谷是很早以前由一条古河道干涸后而形成的。
- There are favorable ore forming geological conditions for the Bengbu uplifting area,which,however,is severely covered with the Quaternary System with bedrocks sparsely outcropped. 蚌埠隆起区成矿地质条件有利,第四系覆盖严重,基岩露头零星,运用综合信息矿产预测理论可以指导本区地质找矿工作。
- During India's formative age, three major religions were evolving on the subcontinent. 在印度的形成时期,三个主要宗教在这块次大陆上发展进化着。
- From the point of view of geochemistry, the regularity of migration and enrichment of ore forming elements during migmatization is discussed in this paper. 从成矿作用地球化学的观点;探讨了元素在混合岩化过程中迁移;富集成矿的规律.
- Through studying the known gold ore spots in Yanggao region,the source of ore forming material,genetic types and controlling factors of different level faults are indicated. 通过对阳高地区已知金矿点的研究,指出该区金矿的物质来源、成因类型以及不同级别断裂对金矿形成的控制作用。
- During India's formative age, three major religions were evolving on the subcontinent.Hinduism became the dominant social and religious force in India. 尽管在形成时期,巨大灾难频仍,从哲学到经济学,中国在其社会的各个方面从事着的雄心勃勃的发明。