Valles Caldera workshop

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Abstract

A Continental Scientific Drilling Project (CSDP) Workshop, attended by 87 scientists, focusing on the Valles caldera was hosted by the Department of Energy and the Los Alamos National Laboratory, on October 5–7, 1982, in Los Alamos, New Mexico. The caldera, a large, Quaternary magmahydrothermal system, lies at the intersection of the Rio Grande rift and the Jemez lineament in north-central New Mexico and is a prime site for the first deep drill holes.

One major objective of CSDP is to develop a broad scientific understanding of the roots of an active hydrothermal system associated with recent igneous intrusion. Surface geological, geophysical, geochemical, and hydrological data, along with information from shallow exploratory drillholes, will be used in the process of interactive development and testing of models and hypotheses for such systems. Ultimately, deep drilling will be essential to provide direct sampling of fluids and rocks at depth and to measure directly the critical in situ physical parameters. Thus, deep drilling research becomes an integral and necessary component in the synthesis, refinement, and verification of three-dimensional models of hydrothermal-magma systems and processes.

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