US-Kenya Cooperative Research: Refining Geothermal Exploration via Geochemical Modelling of Young Volcanic Centers in the Kenya Rift

美国-肯尼亚合作研究：通过肯尼亚裂谷年轻火山中心的地球化学模拟完善地热勘探

• 批准号: 0096863
• 负责人: Elizabeth Anthony
• 金额: $ 2.82万
• 依托单位: University of Texas at El Paso
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-09-01 至 2005-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0096863&HistoricalAwards=false
• 关键词: US; Kenya; Cooperative; Research; Refining

0096863AnthonyThis award supports a two-year collaborative research project between Dr. Elizabeth Anthony, with the Department of Geological Sciences at the University of Texas in El Paso, and Dr. Peter Omenda, with the Olkaria Geothermal Project, Kenya Electricity Generating Co. Ltd.In Kenya geothermal resources are focussed on young volcanic centers which sit in the axis of the Kenya Rift. Anthony and Omenda have already established that although these eruptive centers share many common characteristics, such as location and age, each center also has its own distinct evolutionary history. In addition, geophysicists have recently imaged shallow, high-density bodies beneath the volcanoes, which may represent the magma chambers or residues from magma crystallization. The investigators will collect volcanic and geophysical data from four volcanoes in the Kenya Rift, and use it to develop integrated models on the volume and composition of the subsurface magmas. These models will then be used to understand the cause for the different evolutionary histories, and to interpret the exact relationship between the volcanism and the shallow, high-density bodies. This project combines the petrologic expertise of Dr. Anthony with the geothermal and field experience of Dr. Omenda. Through this project the investigators expect to achieve a greater understanding of the history of volcanoes, and of the relationship between observed volcanic units and subsurface geophysics. This knowledge will also aid in future geothermal exploration and exploitation activities, such as the assessment of long-term heat budgets for individual volcanoes. The Division of International Programs and the Division of Earth Sciences are jointly providing support for this project.

0096863安东尼该奖项支持德克萨斯大学埃尔帕索分校地质科学系的伊丽莎白·安东尼博士和肯尼亚发电有限公司奥尔卡里亚地热项目的彼得·奥门达博士之间为期两年的合作研究项目。在肯尼亚，地热资源集中在位于肯尼亚裂谷轴线上的年轻火山中心。 安东尼和奥门达已经确定，虽然这些喷发中心有许多共同特征，例如位置和年龄，但每个中心也有自己独特的进化历史。 此外，地球物理学家最近对火山下方的浅层高密度物体进行了成像，这些物体可能代表岩浆室或岩浆结晶的残留物。 研究人员将从肯尼亚裂谷的四座火山收集火山和地球物理数据，并利用这些数据开发地下岩浆体积和成分的综合模型。 这些模型将用于了解不同进化历史的原因，并解释火山活动与浅层高密度物体之间的确切关系。 该项目结合了安东尼博士的岩石学专业知识和奥门达博士的地热和现场经验。 通过这个项目，研究人员希望更好地了解火山的历史，以及观测到的火山单元与地下地球物理学之间的关系。 这些知识还将有助于未来的地热勘探和开发活动，例如评估单个火山的长期热量收支。 国际项目部和地球科学部共同为本项目提供支持。