| 金属成矿各论(二) |
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| 引用本文： | 侯德封.金属成矿各论(二)[J].地质科学,1965,6(4):303-312. |
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| 作者姓名： | 侯德封 |
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| 摘 要： | 本文从分散元素讨论金属成矿问题,这必然涉及到与它们共存金属的成矿体系。因而提出金属元素的产生和资源类型之间的关系问题,供今后研究。一、一般情况分散元素是一个经验名词,是指常存在于另一种主金属矿物中的元素,它们虽在一定条件下也可以形成独立矿物,但是它们很少形成自己的独立矿石。因此,找分散元素的富集点常是在金属矿石里下工夫。
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| 关 键 词： | , |
AN INTRODUCTION TO THE GENESIS OF ORE DEPOSITS (Ⅱ DISPERSED ELEMENTS) |
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| Hou DE-FENG.AN INTRODUCTION TO THE GENESIS OF ORE DEPOSITS (Ⅱ DISPERSED ELEMENTS)[J].Chinese Journal of Geology,1965,6(4):303-312. |
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| Authors: | Hou DE-FENG |
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| Abstract: | The enrichment of dispersed elements in the formation of ore deposits is controlled by three factors as the process of ore-forming of other metals: （1） formation of atoms, （2） migration of elements, （3） stability of elements under supergene conditions. For concentration of certain elements in a certain space, the atom-forming system is a fundamental process. Atom-forming processes are mainly as follows: 1. accumulation of products of positive-direction nuclear translation; 2. products of fission of heavy nucleus; 3. products of decay of the heavy radioactive nucleus and the splints of nuclear fission of those decayed elements. This paper deals with some elements of B group in the periodic table, namely Ga, Ge, Se, Cd, In, Te, Tl etc. According to associated systems, they may be classified as follows: （1） Bi——In, Sn, Sb, Te——As, Se （2） Pb——Ag, Cd, In——Cu, Zn, Ga, Ge, As （3） HgTl——Ag——Sb, Te——As, Se （4） Au——Ag, Cd, In——Cu——Ge, As, Se Since these dispersed elements arc associated with heavy metallic sulfides, they can be concentrated to form ore deposits commonly in slight acid rocks and acid rocks which are intruded in the middle or late stage of orogeny, and are enriched mainly by hydrothermal processes. Another group is formed during the crystallization of the components of basic rocks, it includes sulfide deposits of Fe, Co, Ni, Cu, Zn, Ga, Ge, As, Se. These deposits are essentially accumulated from the products of positive-direction nuclear translation. |
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