Major geochemical characteristics of geothermal brines from the Upper Rhine Graben granitic basement with constraints on temperature and circulation
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- 作者：B. Sanjuana ; b.sanjuan@brgm.fr" class="auth_mail" title="E-mail the corresponding author ; R. Millotb ; Ch. Innocentb ; Ch. Dezayesa ; J. Scheiberc ; M. Brachb
- 关键词：Geothermal fluid ; Gas ; Granite basement ; Upper Rhine Graben ; Geothermometer ; Triassic ; Oligocene ; Fluid circulation
- 刊名：Chemical Geology
- 出版年：2016
- 出版时间：15 June 2016
- 年：2016
- 卷：428
- 期：Complete
- 页码：27-47
- 全文大小：3540 K
文摘
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First paper to present geochemical data of hot brines from the Rhine Graben basement.
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Geothermometers indicate reservoir temperatures of 225 ± 25 °C for all these brines.
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Convective brine circulation from the graben Triassic center to the granite basement.
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The different TDS and Cl/Br ratios suggest distinct geothermal reservoirs.
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The western part of the Upper Rhine Graben is hotter than the eastern part at depth.