Core Holes At Valles Caldera - Sulphur Springs Geothermal Area (Goff, Et Al., 1987)
Exploration Activity: Core Holes At Valles Caldera - Sulphur Springs Geothermal Area (Goff, Et Al., 1987)
|Exploration Activity Details|
|Location||Valles Caldera - Sulphur Springs Geothermal Area|
|Exploration Technique||Core Holes|
|Activity Date||1986 - 1986|
A series of core holes were drilled from 1984 to 1988 as a part of the Continental Scientific Drilling Program (CSDP) to better understand the stratigraphy, structure, hydrothermal alteration, and subsurface architecture of the Valles caldera. Several authors have reported results from these core holes, including Goff et al. (1986, 1987), Gardner et al. (1987, 1989), Hulen & Nielson (1985), Hulen et al. (1988, 1989), Musgrave et al. (1989), Rowley et al. (1987), Shevenell et al. (1988), and Starquist (1988).
CSDP core hole VC-2A was completed in 1986. Core hole VC-2A penetrates the western ring fracture zone of the caldera at Sulphur Springs reservoir, and provided considerable insight into textural features, structures, and processes governing ore and alteration mineral deposition associated with the active hydrothermal system. The well was drilled to a depth of 528 m, and encountered a narrow (5 m) zone of acid condensation that overlies vapor- and water-dominated zones separated by a region of tightly sealed rock.
- Fraser E. Goff, Dennis L. Nielson, Jamie N. Gardner, Jeffrey B. Hulen, Peter Lysne, Lisa Shevenell, John C. Rowley (1987) Scientific Drilling at Sulphur Springs, Valles Caldera, New Mexico- Core Hole VC-2A
- (Unknown) Stratigraphy, structure, hydrothermal alteration and ore mineralization encountered in CSDP (Continental Scientific Drilling Program) corehole VC-2A, Sulphur Springs Area, Valles Caldera, New Mexico- A detailed overview
- (Unknown) Core Log Valles Caldera #2A, New Mexico
- John A. Musgrave, Fraser E. Goff, Lisa Shevenell, Patricio E. Trujillo Jr, Dale Counce, Gary Luedemann, Sammy Garcia, Bert Dennis, Jeffrey B. Hulen, Cathy Janik, Francisco A. Tomei (1989) Selected Data from Continental Scientific Drilling Core Holes VC-1 and VC-2A, Valles Caldera, New Mexico