Illite Dissolution Rates and Equation (100 to 280 deg C)

The objective of this suite of experiments was to develop a useful kinetic dissolution expression for illite applicable over an expanded range of solution pH and temperature conditions representative of subsurface conditions in natural and/or engineered geothermal reservoirs. Using our new data, the resulting rate equation is dependent on both pH and temperature and utilizes two specific dissolution mechanisms (a "neutral" and a "basic" mechanism). The form of this rate equation should be easily incorporated into most existing reactive transport codes for to predict rock-water interactions in EGS shear zones.

Data and Resources

Field Value
DOI 10.15121/1159941
accessLevel public
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datagov_dedupe_retained 20250120143002
identifier https://data.openei.org/submissions/6765
issued 2014-10-17T06:00:00Z
landingPage https://gdr.openei.org/submissions/454
license https://creativecommons.org/licenses/by/4.0/
modified 2017-06-27T14:27:37Z
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programCode {019:006}
projectLead Lauren Boyd
projectNumber FY14 AOP 1.4.2.2
publisher Lawrence Livermore National Laboratory
resource-type Dataset
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Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • AmeriGEO
  • AmeriGEOSS
  • CKAN
  • GEO
  • GEOSS
  • National
  • North America
  • United States
  • dissolution-kinetics
  • equation
  • experiment
  • geothermal
  • illite
  • illite-dissolution
  • rate
isopen True
license_id cc-by
license_title Creative Commons Attribution
license_url http://www.opendefinition.org/licenses/cc-by
maintainer Susan Carroll
maintainer_email carroll6@llnl.gov
metadata_created 2025-09-24T15:06:52.121117
metadata_modified 2025-09-24T15:06:52.121123
notes The objective of this suite of experiments was to develop a useful kinetic dissolution expression for illite applicable over an expanded range of solution pH and temperature conditions representative of subsurface conditions in natural and/or engineered geothermal reservoirs. Using our new data, the resulting rate equation is dependent on both pH and temperature and utilizes two specific dissolution mechanisms (a "neutral" and a "basic" mechanism). The form of this rate equation should be easily incorporated into most existing reactive transport codes for to predict rock-water interactions in EGS shear zones.
num_resources 1
num_tags 15
title Illite Dissolution Rates and Equation (100 to 280 deg C)