Core log: Valles caldera No. 2A, New Mexico

Technical Report · Thu Dec 31 23:00:00 EST 1987

DOI:https://doi.org/10.2172/5165076· OSTI ID:5165076

Starguist, V L

Scientific 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-hole temperature was 212/degree/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 hydrothermal system. 3 refs., 2 figs.

• Research Organization: Los Alamos National Lab., NM (USA)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 5165076
• Report Number(s): LA-11176-OBES; ON: DE88007156
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
CALDERAS
COMPILED DATA
DATA
DRILL CORES
DRILLING
ENERGY SYSTEMS
FEDERAL REGION VI
GEOLOGY
GEOTHERMAL SYSTEMS
GEOTHERMAL WELLS
Geothermal Legacy
HYDROTHERMAL ALTERATION
HYDROTHERMAL SYSTEMS
INFORMATION
JEMEZ MOUNTAINS
MOUNTAINS
NEW MEXICO
NORTH AMERICA
NUMERICAL DATA
SITE CHARACTERIZATION
STRATIGRAPHY
TEMPERATURE LOGGING
USA
WELL DRILLING
WELL LOGGING
WELLS