流体不混溶性和流体包裹体_卢焕章.pdfVIP

1000-0569/2011/027( 05)-125 -61 Acta etrolog ica Sinica 岩石学报 * 卢焕章1, 2 1, 2 LU HuanZhang 11 , 550002 21 Univesity ofQuebec at Chicoutmi ,i Chicoutmi i G7H 2B1 11 Institute of Geochemistry, CAS, Guiyang 550002, China 21 Univesity of Quebec atChicoutmi i, Chicoutmi i G7H 2B 1, Canada 2010-11-10 收稿, 2011-0 -10 改回1 Lu HZ1 20111 F luids imm iscibility and fluid inclusions1 A c ta P etrolog ica S in ica, 27( 5): 1253- 1261 Abst act M ost flu id inclusion trapped from a hom ogeneous flu id but som em ay trapped from a heterogeneous flu ids ( mi m iscib ility process) 1 In the nature, there are a lot of mi m iscible processes and system s, including mi m iscib ility between basic m agm a and felsic m agm a, m agm a and hydrotherm al flu ids; magm a and CO flu id; saline fluids and CO fluid etc1 The flu id inclus ions trapped from 2 2 hom ogeneous and heterogeneous processes are w ith d ifferent characteristics and in som ewhat is not easy to be d istingu ished1 The mi m iscib ility process is an mi portant process of m ineralization1 Especially in the gold deposition, pegm atite form ation and porphyry Cu- M o system1 K ey wo ds F luid mi m iscib ility; Flu id inclusion; Gran ite; Pegmatite; M agm a 大多数流体包裹体是捕获于均匀体系, 但有 一部分包裹体捕获自非均匀体系 (不混溶体系)在自然界 在着许 多不混溶的过程, 这包括基性岩浆和酸性岩浆之间, 岩浆与热液, 岩浆与 CO , 盐水溶液与 CO 等液体的不混溶性对于成矿 2 2 作用十分重要, 这方面有 个典型的例子, 第一个是金矿的成矿作用与 N aC-lH O-CO 体系流体的不混溶有着重大的关系; 第 2 2 二 个例子是斑岩铜矿; 第三 个例子是伟晶岩, 发现在伟晶岩演化和成矿作用中 在着岩浆和热液的不混溶作用实际上不混 溶的大部分证据是从流体包裹体的研究中获得的现在的问题是如何来确定哪些包裹体是从不混溶过程中捕获的这种捕 获于不混溶过程中的流体包裹体怎么来确定他的T 和成分这种捕获于不混溶过程中的流体包裹体怎么与/ 卡脖子0 / 拉伸