Defining chemical and mineralogical signatures of magmatic-hydrothermal systems

元素的质量转移在地球内部持续发生，并且在元素足够集中的地方，矿床或自然资源出现。元素迁移有多种方式，但岩浆和变质作用是地球历史上两个非常重要和广泛的过程。研究元素在不同时间尺度上的活动以及元素内部的关联如何与地球过程相关联是必要的，以便：（1）理解地球演化，（2）地球内部的过程如何随时间演化，以及（3）自然资源如何形成并与地球演化相关联。该建议考察了元素质量转移的两个方面：（1）在一个大的地质区域（1000平方英尺）内的一系列环境中，不同的金矿床和锡、钨、钼矿床的组合。公里）。这项研究，然后用来检查这些元素协会是如何独立地或集体地与全球其他地区的地质演化;和（2）的过程，负责动员和浓度的钽，相关的社会需求的元素，但也用于了解地球演化和重要的地质过程，通过时间。

Mass transfer of elements occurs within the earth on a continual basis and where there is sufficient concentration of elements ore deposits or natural resources occur. Elemental transfer occurs in many ways, but magmatic and metamorphic processes are two very significant and widespread ones that have been active through earth history. The study of elemental mobiization on different scales through time and how intra-element associations relate to earth processes is necessary in order to: (1) understand earth evolution, (2) how processes within the earth evolve through time, and (3) how natural resources form and relate to earth evolution. This proposal examines two aspects of mass transfer of elements: (1) the association of different gold deposits and tin, tungsten, molybdenum deposits in a range of environments within a single large geological area (1000s sq. km). This study is then used to examine how such elemental associations relate either independently or collectively to the geological evolution of such regions elsewhere globally; and (2) the processes that are responsible for the mobilization and concentration of tantalum, an element of relevance to societal needs, but also used in understanding earth evolution and important geological processes through time.