Play Fairway analysis of geothermal resources across the State of Hawai‘i: 4. Updates with new groundwater chemistry, subsurface stress analysis, and focused geophysical surveys
Play Fairway analysis of geothermal resources across the State of Hawai‘i: 4. Updates with new groundwater chemistry, subsurface stress analysis, and focused geophysical surveys
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DOI：
10.1016/j.geothermics.2019.101798
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发表时间：
2020-01
期刊：
影响因子：
3.9
通讯作者：
N. Lautze;G. Ito;D. Thomas;N. Frazer;S. Martel;N. Hinz;Diamond K. Tachera;G. Hill;H. Pierce;P. Wannamaker;T. Martin
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文献类型：
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作者：
N. Lautze;G. Ito;D. Thomas;N. Frazer;S. Martel;N. Hinz;Diamond K. Tachera;G. Hill;H. Pierce;P. Wannamaker;T. Martin
本文是关于夏威夷州地热资源球道分析系列文章的第四篇。在这里，我们描述了最近的勘探活动，包括在全州10个地点的地下水采样，以及在拉纳伊，跨越哈雷卡莱托火山（毛伊岛）的西南裂谷，和周围的莫纳克亚火山（夏威夷岛）的地球物理调查。本文利用绿色函数导出了一个计算地形应力的一阶方法，发现地形可以引起可观的地壳应力。我们开发了一种新的方法，将深度信息的电阻率，密度和地形应力到我们以前发表的方程计算资源的概率和信心。我们将新收集和建模的数据纳入我们的计算中，以更新全州的概率和置信度地图。Lāna'i岛和莫纳克亚山东南部被确定为勘探钻井的首要目标。Haleakaldam火山的东部裂谷、莫纳罗亚火山西南裂谷（夏威夷岛）的最南部地区和考艾岛中部被确定为地球物理勘探的目标。
This paper is the fourth in a series on a play fairway analysis of geothermal resources across the State of Hawai‘i. Here we describe recent exploration activities that include groundwater sampling in ten locations statewide, as well as geophysical surveys on Lāna‘i, across the SW rift of Haleakalā Volcano (Maui), and surrounding Mauna Kea Volcano (Hawai‘i Island). We derive a first-order method for computing topographic stress using Green’s functions, finding that topography can induce appreciable crustal stress. We develop a new method for incorporating depth information about resistivity, density, and topographic stresses into our previously published equations to calculate resource probability and confidence. We incorporate newly collected and modeled data into our calculations to update statewide maps of probability and confidence. Lāna‘i Island and southeast Mauna Kea are identified as the top targets for exploratory drilling. The east rift of Haleakalā Volcano, the southern-most region of Mauna Loa’s SW rift (Hawai‘i Island), and central Kauai are identified as targets for geophysical surveying.