电-磁力对成矿流体脉动贯入的控制作用

电磁力对成矿流体脉动贯入的控制是深入研究成矿作用的生长点。本文通过电磁原理、围岩和矿石电磁特征、流动电位元素电磁性质推动压力之间相互关系的探讨,提出4点认识。①电磁力是一种客观存在的力,同构造力和重力一样都归属为面力,都能推动流体或成矿流体脉动贯入。②电磁力与其它动力不同的是它具面力和体力的双重性,推动物体运动同时又能作用于物体内质点间的力,其特性是:随地磁脉动、构造能和热能的变化可获附加电磁力,使原电磁作用力加强,有用元素正、负离子运移、富集速度加快,易形成含矿流体;附加电磁力又能使流动电位加大,并产生推动压力推动成矿流体脉动贯入。③恒定的电磁力也可依附有用元素或矿物本身电、磁性质的不同而出现成矿元素的富集、共生的矿物组合和纵横向的分带序列。④电磁力可视为元素发生运移富集形成含矿流体的主要因素之一。

ELECTRO-MAGNETIC FORCE CONTROLLING PULSING INJECTION OF METALLOGENIC FLUID

The electro-magnetic force controlling pulsing injection of metallogenic fluid is growing a spot of study on metallogenic mechanism. To discuss the principle of electro-magnetic force, the electro-magnetic characters of wall rocks and ores, the relations among flow electric potential, electro-magnetic behaviour of element and driving push stress, the following view points were concluded. ①The electro-magnetic force was a kind of impersonality subsistent force and a kind of surface, similar to tectonic and gravitational forces, all of which could be able to impulse pulsing injection of fluid or metallogenic fluid. ②The electro-magnetic force, different from other powers, was both a surface force and a physical one, which impulsed the fluid movement and affected the particles simultaneously. The attached electro-magnetic force, obtained by changes of geomagnetic pulsing, tectonic energy and heat energy, resulted in the original electro-magnetic force strengthened, the positive and negative ions’ moving quickened and enriched, so as to form ore-bearing fluid easily. Furthermore, the attached force increased the flow electric potential, created an impulsing force to push the metallogenic fluid pulsing injection. ③The invariable electro-magnetic force caused metallogenic elements enriching, mineral assemblages compounding, and vertical or horizontal ore zonations appearing, since the useful elements or minerals having varied electro-magnetic behaviours. ④The electro-magnetic force might be one of primary factors for elements moving, enriching and forming ore-bearing fluid.