Pressure-temperature Constraints and Fluid Evolution as Determined from Fluid Inclusions in the Getchell, Nevada, Carlin-type Gold Deposit

内华达州格切尔卡林型金矿床流体包裹体确定的压力-温度约束和流体演化

• 批准号: 9110587
• 负责人: Jean Cline
• 金额: $ 1.79万
• 依托单位: University of Nevada Las Vegas
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-07-01 至 1993-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9110587&HistoricalAwards=false
• 关键词: Pressure; temperature; Constraints; Fluid; Evolution

North-central Nevada contains one of the largest gold- producing districts in the world Sixty million ounces of gold (Knutsen and Wilson, 1990) have been identified in "Carlin-Type "deposits in the Carlin trend, one of several mineralized trends in the district. The fundamental relationships between igneous and tectonic activity in this region have yet to be fully understood. An important consequence of crustal processes active in this region is the massive concentration of gold. By resolving those processes responsible for gold concentration we can formulate models describing ore genesis in Carlin-type deposits and improve our understanding of geological processes active along this ancient continental margin. This research proposal outlines a detailed fluid inclusion study to determine the pressure-temperature conditions during gold precipitation at the Getchell deposit, a typical Carlin-Type system, and to document the physical and chemical nature of fluids that transported and precipitated gold mineralization.

内华达州中北部蕴藏着世界上最大的金矿之一- 世界上有六千万盎司的黄金 （Knutsen和Wilson，1990）已经在“卡林型”中被确定。 “卡林趋势中的矿床，几个矿化趋势之一 在这个地区。 火成岩与火山岩之间的基本关系 和构造活动尚未完全 明白 地壳活动的一个重要后果 是黄金的集中地 通过解决 我们可以用公式来描述这些过程 卡林型矿床成因模式的研究与改进 我们对活跃于沿着的地质过程的理解 大陆边缘 该研究计划概述了一个详细的 流体包裹体研究确定压力-温度 在Gettlehill存款，a金沉淀过程中的条件 典型的卡林型系统，并记录物理和 搬运和沉淀金的流体的化学性质 成矿