邦布金矿位于青藏高原雅鲁藏布江缝合带东段的南侧，矿体受大型脆—韧性剪切带的次级断裂控制，是目前西藏境内已发现的为数不多的大型原生金矿之一。系统的显微测温和激光拉曼测定显示邦布金矿矿石中存在三类流体包裹体：（Ⅰ）纯液相水溶液包裹体；（Ⅱ）含CO2盐水溶液包裹体，此类包裹体又分为两相（Ⅱa）和三相(Ⅱb)两个小类；（Ⅲ）纯气相碳氢化合物包裹体。邦布金矿床中流体包裹体显微测温结果如下：含CO2盐水溶液包裹体的盐度范围为2.20～9.45 wt%NaCleq，，峰值在6.0～7.0 wt%NaCleq，平均值为6.25 wt%NaCleq；均一温度的范围在166.7～335.8℃，峰值在210~250℃，平均值为235.4℃。相对应的密度范围在0.63～0.96 g/cm3，峰值为0.85～0.95 g/cm3，平均值为0.87 g/cm3。以含CO2盐水溶液包裹体为代表的邦布金矿床成矿流体具有富含CO2、低盐度、低密度、中低温度的特征，与造山型金矿成矿流体相似。同位素测定显示成矿流体的氢氧同位素组成分别为 ， ，说明成矿流体主要为变质水，但有地幔流体的加入。综合成矿地质特征和成矿流体的证据，提出邦布金矿为喜马拉雅期陆陆碰撞造山型金矿。

折木朗金矿位于青藏高原雅鲁藏布江缝合带东段的南侧，矿体受大型脆—韧性剪切带的次级断裂控制。系统的显微测温和激光拉曼测定显示折木朗金矿矿石中存在三类流体包裹体： NaCl-H2O溶液包裹体（类型Ⅰ）；含CO2盐水溶液包裹体（类型Ⅱ），此类包裹体又分为两相（Ⅱa）和三相（Ⅱb）两个小类；Ⅲ纯气相包裹体。折木朗金矿床中流体包裹体显微测温显示该矿成矿流体的盐度范围为2.31~7.39% NaCleq，平均值为5.33%NaCleq，峰值为4.0~7.0%NaCleq；均一温度的范围为164.5~273.1℃，峰值为220~240℃，平均值为221.0℃。相对应的密度范围为0.82~0.93g/cm3，峰值为0.84~0.90g/cm3，平均值为0.88g/cm3。折木朗金矿床成矿流体具有富含CO2、低盐度、低密度、中低温度的特征，与造山型金矿成矿流体相似。此外，同位素测定显示成矿流体的氢氧碳同位素组成分别为 =-36.7~ -107.5(‰)， = 4.1~5.5(‰)，δ13C=-9.6~-11.5(‰)，说明成矿流体主要为变质水，但有地幔流体的加入。综合成矿地质特征和成矿流体的证据，提出折木朗金矿为陆陆碰撞造山型金矿。

We have identified abundant exsolutions in apatite aggregates from eclogitic drillhole samples of the Chinese Continental Scientific Drilling (CCSD) project. Electron microscope and laser Raman spectroscopy analyses show that the apatite is fluorapatite, whereas exsolutions that can be classified into four types: (A) platy to rhombic monazite exsolutions; (B) needle-like hematite exsolutions; (C) irregular magnetite and hematite intergrowths; and (D) needle-like strontian barite exsolutions. The widths and lengths of type A monazite exsolutions range from about 6–10μm (mostly 6μm) and about 50–75μm, respectively. Type B exsolutions are parallel with the C axis of apatite, with widths ranging from 0.5 to 2μm, with most around 1.5μm, and lengths that vary dramatically from 6 to 50μm. Type C exsolutions are also parallel with the C axis of apatite, with lengths of _30–150μm and widths of _10 to 50μm. Type D strontian barite exsolutions coexist mostly with type B hematite exsolutions, with widths of about 9 lm and lengths of about 60–70μm. Exsolutions of types B, C and D have never been reported in apatites before. Most of the exsolutions are parallel with the C axis of apatite, implying that they were probably exsolved at roughly the same time. Dating by the chemical Th–U-total Pb isochron method (CHIME) yields an U–Pb isochron age of 202±28Ma for monazite exsolutions, suggesting that these exsolutions were formed during recrystallization and retrograde metamorphism of the exhumed ultrahigh pressure (UHP) rocks. Quartz veins hosting apatite aggregates were probably formed slightly earlier than 202 Ma. Abundant hematite exsolutions, as well as coexistence of magnetite/hematite and barite/hematite in the apatite, suggest that the oxygen fugacity of apatite aggregates is well above the sulfide-sulfur oxide buffer (SSO). Given that quartz veins host these apatite aggregates, they were probably deposited from SiO2-rich hydrous fluids formed during retrogression of the subducted slab. Such SiO2-rich hydrous fluids may act as an oxidizing agent, a feasible explanation for the high oxygen fugacity in convergent margin systems.

高真空四极气相质谱系统分析表明长坑金银矿的硫化物矿物流体包裹体中存在9种轻烃有机气体，它们主要由C1-4饱和烷烃和C2-4不饱和烯烃和芳烃组成，但烷烃占绝对优势，而烯烃和芳烃含量很低；并且，这些有机气体主要来自中低温条件下水/岩反应所导致的沉积岩中有机质的热分解，成矿过程应基本未受到岩浆作用的影响。金矿和银矿硫化物样品中轻烃有机气体的组成说明两者的成矿过程可能相似。有机气体组成表明，该矿成矿时其大地构造背景为裂谷环境。

采用激光微区40Ar/39Ar定年技术，对粤中长坑微细浸染型金矿主成矿期热液蚀变黏土矿物进行了测定，得出该矿金的主成矿年龄为109.9±1.4～110.1±1.3Ma，较银的主成矿年龄早30～50Ma。金和银的成矿均与该区隐伏花岗岩体无关，而可能都是沉积盆地演化的产物。研究表明激光微区。40Ar/39Ar定年方法十分适用于微细浸染型金矿成矿时代的厘定。