Mineralogical and Geochemical Studies of Hydrothermally Altered Rocks from the MARK Area, Mid-Atlantic Ridge

在其轴向谷中采集了大量的样品， 大西洋中脊和凯恩断裂带交汇处（The Mid-Atlantic Ridge and Kane Fracture Zone Intersection） 马克区）在以前的疏浚活动和阿尔文潜水。 汤普森博士和吉利斯博士计划对 这些岩石和504 B站点（东太平洋）的相应岩石 Rise）和Troodos蛇绿岩的研究 成矿作用中的变质作用 海洋地壳内的热液流体。 整个范围内 这些样本所代表的环境， 私家侦探希望能遇到各种各样的温度， 水/岩石条件、结构和岩石类型。 分析 技术将包括岩相分析和主要，痕量， 矿物的同位素测量，整体模型，计算 buldk岩石交换，并计算流体成分， 脉状沉淀和流体包裹体。

Numerous samples have been colected from the axial valley of the Mid-Atlantic Ridge and Kane Fracture Zone intersection (the MARK area) during previous dredging campaigns and Alvin dives. Drs. Thompson and Gillis plan to conduct laboratory analyses on these and corresponding rocks from Site 504B (East Pscific Rise) and the Troodos ophiolite in and investigate therole of metamorphic asemblages in the foramtion of ore-forming hydrothermal fluids within oceanic crust. Throughout the range of environments represented by this collection of samples, the PIs hope to encounter a wide variety of temperatures, water/rock conditions, textures and rock types. Analytical techniques will include petrographic analysis and major, trace, and isotopic measurement of minerals, bulk models, calculate buldk rock exchanges, and calculate fluid compositions from vein precipitates and fluid inclusions.