Chemical and Stable Isotopic Evolution of Stratified Thermal Fluids in the Salton Sea Geothermal System, California

加利福尼亚州索尔顿海地热系统分层热流体的化学和稳定同位素演化

• 批准号: 8805426
• 负责人: Alan Williams
• 金额: $ 6万
• 依托单位: University of California-Riverside
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-08-01 至 1991-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8805426&HistoricalAwards=false
• 关键词: Chemical; Stable; Isotopic; Evolution; Stratified

The Pi's propose to continue investigations of the Salton Sea Geothermal system and particularly the interaction between deep hypersaline brines and Shallower, more dilute brines. These two reservoirs seem to be stratified within the sediment reservoir with a sharp density controlled interface paralleling the 250C isotherm. Isotopic data reveal that the two fluids may have different sources, and their distinctive chemical compositions imply different water-rock interaction histories along their respective flow paths. Both hydrothermal circulation and ore deposition are controlled by the salinity stratified nature of these fluids. Further work is intended to add to the existing data base using samples from commercial production wells. The ultimate goal is to understand the evolution of the two fluid reservoirs and their role in controlling metallogenesis.

派提议继续调查索尔顿海 地质系统，特别是深层 高盐卤水和更浅、更稀的卤水。 这两 水库似乎是分层的沉积水库内 具有与250 C平行的锐密度控制界面 等温线 同位素数据显示，这两种流体可能具有 不同的来源及其独特的化学成分 意味着不同水-岩相互作用历史沿着其 各自的流动路径。 热液循环与成矿 沉积是由盐度分层的性质， 这些液体。 进一步的工作旨在增加现有的 数据库使用商业生产威尔斯井的样品。 的 最终目的是了解这两种流体的演化 储层及其对成矿的控制作用