CAJ | 학술논문

元素的富集贫化是矿床中固有的客观规律.在以往相关研究中,研究者们多从定性的角度对此进行讨论,定量研究不够系统.本文以内蒙古乌努格吐山斑岩型铜钼矿床为例,利用 Grant 方程,定量探讨了该矿床蚀变围岩中元素的带入、带出特征.结果表明,不同元素的质量迁移在矿化蚀变范围内表现出一定的规律性,相对于原岩而言,各蚀变带中Cu、Mo、Au、Ag、W、Sn、As、F、Hg、S等表现为明显的带入特征,而CaO、Na2O、TiO2、Zr、Ba、Sr、Rb和REE则表现为明显的带出特征.这些元素的带入带出导致矿床及蚀变围岩中元素的富集贫化.元素质量迁移定量计算思路和方法,为地球化学勘查向定量化方向发展提供了可行的途径.
원소적부집빈화시광상중고유적객관규률.재이왕상관연구중,연구자문다종정성적각도대차진행토론,정량연구불구계통.본문이내몽고오노격토산반암형동목광상위례,이용 Grant 방정,정량탐토료해광상식변위암중원소적대입、대출특정.결과표명,불동원소적질량천이재광화식변범위내표현출일정적규률성,상대우원암이언,각식변대중Cu、Mo、Au、Ag、W、Sn、As、F、Hg、S등표현위명현적대입특정,이CaO、Na2O、TiO2、Zr、Ba、Sr、Rb화REE칙표현위명현적대출특정.저사원소적대입대출도치광상급식변위암중원소적부집빈화.원소질량천이정량계산사로화방법,위지구화학감사향정양화방향발전제공료가행적도경.
@@@@Element enrichment and depletion constitute the inherent objective regularity in the ore deposits. Previous studies mainly concentrated on discussions from the qualitative angle, whereas quantitative researches were insufficient. This paper made a tentative quantitative discussion on characteristics of the gains and losses of elements during their migration, through calculation based on the formula given by Grant, with the Wunugetushan porphyry ore deposit as an example. The results demonstrate that mass migration of different elements show certain regularity within the range of mineralized alteration. Compared with least-altered rocks, altered rocks are obviously enriched in Cu, Mo, Au, Ag, W, Sn, As, F, Hg, S and depleted in CaO, Na2O, TiO2, Zr, Ba, Sr, Rb and REE. The gains and losses of elements caused the element enrichment and depletion of the ore deposit and altered wall rock. The calculation thinking and method for element mass migration provide an available approach to geochemical exploration in the quantitative direction.