Rapid Characterization of Drill Core and Cutting Mineralogy using Infrared Spectroscopy

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Journal Article: Rapid Characterization of Drill Core and Cutting Mineralogy using Infrared Spectroscopy

Abstract
Infrared spectroscopy is particularly good at identifying awide variety of hydrothermally altered minerals with no samplepreparation, and is especially helpful in discrimination amongclay minerals. We have performed several promising pilot studieson geothermal drill core and cuttings that suggest the efficiencyof the technique to sample continuously and provide alterationlogs similar to geophysical logs. We have successfully identifiedlayered silicates, zeolites, opal, calcite, and iron oxides and hydroxidesin drill cuttings from geothermal wells. In high verticalresolution measurements (every 10') we note depth-associatedchanges in alteration minerals, patterns or zones. This paperdescribes our results to date, noting distinct mineral assemblagesrelated to system temperature.

Authors 
Wendy Calvin, Amie Lamb and Christopher Kratt








Published Journal 
Geothermal Resources Council Transactions, 2010





DOI 
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Online 
Internet link for Rapid Characterization of Drill Core and Cutting Mineralogy using Infrared Spectroscopy

Citation

Wendy Calvin,Amie Lamb,Christopher Kratt. 2010. Rapid Characterization of Drill Core and Cutting Mineralogy using Infrared Spectroscopy. Geothermal Resources Council Transactions. 34:761-764.


Related Geothermal Exploration Activities
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Areas (1)
  1. Blue Mountain Geothermal Area
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