Gold enrichment mechanism of ore-forming fluid is the essenc e of gold metallization. This paper summarizes the distinguishing symbols of man tle fluid and effect of crust-mantle structure on fluid movement. Fluid mov...Gold enrichment mechanism of ore-forming fluid is the essenc e of gold metallization. This paper summarizes the distinguishing symbols of man tle fluid and effect of crust-mantle structure on fluid movement. Fluid moving processes include osmosis, surge, gas-liquid alternation and mutation of fluid speed. During fluid movement, gold will be enriched gradually. Finally, a layere d circulatory system is illustrated in this paper.展开更多
Standard laboratory procedures and remote sensing techniques were employed in the characterization of gold bearing rocks of the Paishanlou area. Results indicate that, the rocks were formed in an alteration complex of...Standard laboratory procedures and remote sensing techniques were employed in the characterization of gold bearing rocks of the Paishanlou area. Results indicate that, the rocks were formed in an alteration complex of medium temperature and pressure. The area was under intense polymetamorphism (ductile shearing, and hydrothermal metamorphism), which occurred along the deformation zone stretching from Jinzhou to Fuxin. The area bears some propylitic, phyllic (or sericitic) and argillic alteration styles. Gold minerals are contained in fine grained pyrite in silicified zones, and associated with metamorphosed Precambrian rocks. The host rock is composed of gneiss, mylonite and trondhjemite granite, and has a distinctive gold lead geochemical affinity.展开更多
基金theNationalNaturalScienceFoundationofChina (No .40 1 72 036)theScientificandTechnologicalKeyProgramofEducationMinistry (No .0 1 037)+1 种基金theSpecialResearchProgramofMinistryofLandandMineralResourcesofChina(No .2 0 0 1 0 1 0 3)theKeyScienceandTech
文摘Gold enrichment mechanism of ore-forming fluid is the essenc e of gold metallization. This paper summarizes the distinguishing symbols of man tle fluid and effect of crust-mantle structure on fluid movement. Fluid moving processes include osmosis, surge, gas-liquid alternation and mutation of fluid speed. During fluid movement, gold will be enriched gradually. Finally, a layere d circulatory system is illustrated in this paper.
基金This study was supported by the China Scholarship Council(GrantNo.160)National Nature Science Foundation of China(Grant No.400722006)the Key Task Project of Science and Technology of Liaoning Province(GrantNo.2001230001).
文摘Standard laboratory procedures and remote sensing techniques were employed in the characterization of gold bearing rocks of the Paishanlou area. Results indicate that, the rocks were formed in an alteration complex of medium temperature and pressure. The area was under intense polymetamorphism (ductile shearing, and hydrothermal metamorphism), which occurred along the deformation zone stretching from Jinzhou to Fuxin. The area bears some propylitic, phyllic (or sericitic) and argillic alteration styles. Gold minerals are contained in fine grained pyrite in silicified zones, and associated with metamorphosed Precambrian rocks. The host rock is composed of gneiss, mylonite and trondhjemite granite, and has a distinctive gold lead geochemical affinity.
