Core Analysis At Valles Caldera - Sulphur Springs Geothermal Area (Morgan, Et Al., 1996)
Exploration Activity: Core Analysis At Valles Caldera - Sulphur Springs Geothermal Area (Morgan, Et Al., 1996)
|Exploration Activity Details|
|Location||Valles Caldera - Sulphur Springs Geothermal Area|
|Exploration Technique||Core Analysis|
|Activity Date||- 1996|
The study reports new geothermal data from the VC-2A and VC-2B core holes with estimates of the conductive heat flow of their upper intervals dominated by conductive cooling, and integrates these data with existing geothermal data to evaluate the thermal regime of the Valles caldera system.
Core samples were waxed upon retrieval to reduce drying and atmospheric alteration, and thermal conductivities were measured at a mean temperature of 25°C with a line source in either the needle-probe or half-space configuration. Rock thermal conductivities were adjusted to their in situ temperatures using temperature coefficients of thermal conductivity from Birch & Clark (1940). Conductivity data were also adjusted for in situ porosity determined from the well-log data.
- Paul Morgan, John H. Sass, Ronald D. Jacobson (1996) Heat Flow in VC-2A and VC-2B, and Constraints on the Thermal Regime of the Valles Caldera, New Mexico