Natural and experimental evidences of low pressure and high temperature fracturing under sub and supercritical hydrothermal conditions

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

In our hydrothermal experiments using granite and artificial quartz, fracturing was found to be accelerated under a set of specific temperature and pressure conditions which we have termed hydrothermally derived fracturing (HDF). In addition, this phenomena was also observed to occur under natural conditions. In this paper we show examples of natural and experimental HDF. In a set of hydrothermal experiments, fractures were initiated by quartz fracturing, and fractures were enhanced at specific hydrothermal conditions compared to dry conditions. Occurrences of fracturing are inferred to be effected by solid-water interaction. The infrared spectra of OH stretching vibration of interfacial water were changed by environmental conditions such as temperature, pressure and substrate, which is considered to relate HDF phenomena.

Original languageEnglish
Title of host publicationGeothermal Resources Council Transactions - GRC 2006 Annual Meeting
Subtitle of host publicationGeothermal Resources-Securing Our Energy Future
Pages321-325
Number of pages5
Publication statusPublished - 2006
EventGRC 2006 Annual Meeting: Geothermal Resources-Securing Our Energy Future - San Diego, CA, United States
Duration: 2006 Sep 102006 Sep 13

Publication series

NameTransactions - Geothermal Resources Council
Volume30 I
ISSN (Print)0193-5933

Other

OtherGRC 2006 Annual Meeting: Geothermal Resources-Securing Our Energy Future
CountryUnited States
CitySan Diego, CA
Period06/9/1006/9/13

Keywords

  • Granite
  • Hydrothermally derived fracturing (HDF)
  • Infrared spectroscopy
  • Quartz
  • Sub and supercritical water

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Geophysics

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