摘要
胶体是一种高度分散的多相分散体系。关于地壳中胶体的学说己成为近代地学的一个重要分支。它的发展无疑对进一步深入理解地壳中矿物、岩石和矿床的形成过程有着巨大的意义。什么是胶体溶液稳定和聚沉的根本原因呢?根据研完得知:它主要取决于电动电位的变化,即ζ值的大小。胶体保持稳定而能长距离搬运的电位条件是ζ值趋于最大;而凝聚、沉积的电位条件是ζ值趋于零。这就是判断胶体矿物和胶体沉积时地质环境的理论根据。在工业应用上它亦是指导实践的理论依据。
Colloform is a kind of highly dispersed poly-phases dispersing system.The theory of colloform in crust has become an important branch of modern geosciences.Its development definitely bears a grave significance to the understanding of the forming process of the minerals,rocks and mineral deposits in crust.The studies prove that the basic cause for the stability and sedimentation of colloidal solution is mainly the electromotive potential(ζ).When ζ tends to be the largest,colloform keeps to be stable and tran- sport over a long distance;When ζ tends to be zero,colloform condense and lay down.This is the theoretical basis to judge the geological environment of the sedimentation of colloform and colloid minerals.In industrial practice it has also guiding significance.
