The optimal windows for seismically-enhanced gold precipitation in the epithermal environment
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- 作者：Pablo Sanchez-Alfaroa ; b ; 1 ; vsanchez@ing.uchile.cl" class="auth_mail" title="E-mail the corresponding author ; Martin Reicha ; b ; Thomas Driesnerc ; José ; Cembranob ; d ; Gloria Arancibiab ; d ; Pamela Pé ; rez-Floresb ; d ; Christoph A. Heinrichc ; Julie Rowlande ; Daniele Tardania ; b ; Dietrich Langef ; Eduardo Camposg
- 关键词：Epithermal ; Gold ; Seismicity ; Suction pump ; Liquiñ ; e-Ofqui Fault System ; Chile
- 刊名：Ore Geology Reviews
- 出版年：2016
- 出版时间：December 2016
- 年：2016
- 卷：79
- 期：Complete
- 页码：463-473
- 全文大小：1755 K
文摘
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A geothermal system was studied as a modern analogue of epithermal Au deposits.
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Fluid data were combined with thermodynamic modeling and numerical simulations.
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Small-magnitude (Mw < 2) earthquakes can produce large drops in Au solubility.
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Earthquake-driven flash vaporization is more efficient than cooling and boiling.
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Protracted seismicity enhances Au precipitation rates in the epithermal environment.