Core Log Valles Caldera No. 2A, New Mexico
Report: Core Log Valles Caldera No. 2A, New Mexico
AbstractScientific core hole VC-2A was drilled into the western ring-fracture zone at Sulphur Springs in the Valles caldera, New Mexico. VC-2A, the second scientific core hole in the caldera, was cored through a faulted and brecciated sequence of intracauldron tuffs and volcaniclastic rocks to a depth of 528 m. As of November 1, 1986, the unequilibrated bottom-hol e temperature was 212°C. The rocks penetrated are intensely altered and host sub-ore grade stockwork molybdenite mineralization between 25 and 125 m. This report contains a detailed core log to aid researchers in their studies of the Valles caldera magma hydrothermalsystem.
- Virginia L. Starquist
- Los Alamos National Laboratory, NM, 1988
- Report Number
- Not Provided
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Virginia L. Starquist. 1988. Core Log Valles Caldera No. 2A, New Mexico. Los Alamos, NM: Los Alamos National Laboratory, NM. Report No.: LA-11176-OBES.