Modern Closed-Basin Potash Evaporites and Brine Evolution, Qaidam Basin, Qinghai Province, China
青海省柴达木盆地现代闭盆钾盐蒸发岩与卤水演化
基本信息
- 批准号:8816111
- 负责人:
- 金额:$ 5.94万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:1989
- 资助国家:美国
- 起止时间:1989-03-01 至 1992-02-29
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The origin of ancient potash evaporites, in terms of parent waters, depositional environments, and timing of formation is controversial largely because no modern potash-bearing basins have been described in detail. The goal of this study is to document the geochemical and sedimentological conditions of potash mineralization in the Qaidam Basin of western China, where modern bedded potash salts (carnallite and sylvite) are widely developed. The project consists of three interrelated parts: (1) chemistry of inflow waters and their evolution into brines, using a computerized specific ion interaction solution model, (2) field and petrographic study of modern potash salt deposits and geochemistry of associated brines, and (3) Holocene-Pleistocene history of brine evolution and potash salt deposition from study of two cores (fluid inclusions in halite, pore fluid chemistry, and petrography). Many ancient potash deposits lack the MgSO4-salts that are characteristic of a seawater evaporite sequence. Hardie (1984, in review) challenged the marine origin of ancient MgSO4-free potash evaporites and proposed a new model involving hydrothermal inflow waters, especially for those formed in tectonically- active basins. Study of the Qaidam Basin, with recent tectonic activity, MgSO4-free potash evaporites, and major spring inflow, will allow testing of new hypotheses on the origins of ancient potash evaporites.
古钾镁矾的来源,从母岩的角度来看, 沃茨水域、沉积环境和形成时间 争议主要是因为没有现代含钾盆地 已经被详细描述。 本研究的目的是 记录地球化学和沉积学条件 中国西部柴达木盆地的钾盐成矿作用, 现代层状钾盐(光卤石和钾盐)广泛存在于 开发 该项目包括三个相互关联的部分: (1)流入沃茨的化学性质及其向盐水的演变, 使用计算机化的特定离子相互作用溶液模型,(2) 现代钾盐矿床的野外和岩相学研究, 伴生卤水地球化学;(3)全新世-更新世 卤水演化历史与钾盐沉积研究 两个岩心(岩盐中的流体包裹体,孔隙流体化学, 和岩石学)。 许多古老的钾盐矿床缺乏MgSO 4-盐, 具有海水蒸发岩序列的特征。 哈迪(1984年, 在审查)挑战了古代MgSO 4的海洋起源无 提出了一种新的水热成因模式 流入沃茨,特别是那些形成于构造- 活跃盆地 柴达木盆地现代构造研究 活动,无MgSO 4钾长石,和主要的春季流入, 将允许测试新的假设, 碳酸钾
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Tim Lowenstein其他文献
Tim Lowenstein的其他文献
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{{ truncateString('Tim Lowenstein', 18)}}的其他基金
Collaborative Research: Regional hydrologic and vegetation changes over the last 150 kyr in the Searles and Death Valley basins
合作研究:塞尔斯和死亡谷盆地过去 150 公里的区域水文和植被变化
- 批准号:
1903659 - 财政年份:2019
- 资助金额:
$ 5.94万 - 项目类别:
Standard Grant
Collaborative Research: Anatomy of a Greenhouse World: The Early Eocene of the Green River Basin, Wyoming
合作研究:温室世界的解剖:怀俄明州格林河流域的始新世早期
- 批准号:
1812741 - 财政年份:2018
- 资助金额:
$ 5.94万 - 项目类别:
Standard Grant
Ancient Microorganism Communities in Fluid Inclusions in Halite and Gypsum
岩盐和石膏流体包裹体中的古代微生物群落
- 批准号:
1024692 - 财政年份:2010
- 资助金额:
$ 5.94万 - 项目类别:
Standard Grant
Upgrading of Binghamton University Geoscience Microscopy/Fluid Inclusion Laboratory
宾厄姆顿大学地球科学显微镜/流体包裹体实验室升级
- 批准号:
0447165 - 财政年份:2005
- 资助金额:
$ 5.94万 - 项目类别:
Standard Grant
Collaborative Research: Preservation and Long-Term Bacterial Survival in Quaternary Age Salts from Death Valley, Chile, and Bolivia
合作研究:来自死亡谷、智利和玻利维亚的第四纪盐的保存和长期细菌存活
- 批准号:
0433802 - 财政年份:2004
- 资助金额:
$ 5.94万 - 项目类别:
Standard Grant
Collaborative Research: Antiquity of Life in Salt Deposits? A Rb-Sr Age-Dating Study
合作研究:盐矿床中的生命远古?
- 批准号:
0418758 - 财政年份:2004
- 资助金额:
$ 5.94万 - 项目类别:
Standard Grant
Quaternary Paleoclimatic Record From Tropical South America: Drilling the Salar de Uyuni, Bolivia
南美洲热带地区第四纪古气候记录:玻利维亚乌尤尼盐沼钻探
- 批准号:
9820156 - 财政年份:1999
- 资助金额:
$ 5.94万 - 项目类别:
Continuing Grant
Secular Variations in Seawater Chemistry Over the Past 600 MY: A Study of Fluid Inclusions in Marine Evaporites Using Three Analytical Techniques
过去 600 年海水化学的长期变化:使用三种分析技术研究海洋蒸发岩中的流体包裹体
- 批准号:
9725740 - 财政年份:1998
- 资助金额:
$ 5.94万 - 项目类别:
Continuing Grant
Late Quaternary Paleoclimate History from Saline Lakes of the Arid Andes, 23-26 Degrees South-Paleohydrology and Geochemical Proxies
干旱安第斯山脉盐湖的晚第四纪古气候历史,南纬 23-26 度古水文学和地球化学代理
- 批准号:
9709786 - 财政年份:1997
- 资助金额:
$ 5.94万 - 项目类别:
Standard Grant
Collaborative Research: Andean Climate History: Geochemical Proxies from a Holocene-Pleistocene Salt Core, Salar Del Hombre Muerto, Argentina
合作研究:安第斯气候历史:来自全新世-更新世盐芯的地球化学代理,阿根廷 Salar Del Hombre Muerto
- 批准号:
9632359 - 财政年份:1996
- 资助金额:
$ 5.94万 - 项目类别:
Standard Grant
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密闭盆地扬尘及输送的气象控制
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