by Lawrence Berkeley Laboratory .
Written in English
|The Physical Object|
|Pagination||72 p. $0.00 C.1.|
|Number of Pages||72|
Comparative Assessment of Five Potential Sites for Hydrothermal Magma Systems: Energy Transport* Harry C. Hardee Geothermal Research Division Sandia National Laboratories Albuquerque, NM with contributions from: T. N. Narasimhan LBL C. F. Tsang LBL J. Hanson LLNL T. J. Shankland LASL R. H. Nilson SNL ABSTRACT. Comparative assessment of five potential sites for hydrothermal-magma systems: energy transport Technical Report Hardee, H C A comparative assessment of five sites is being prepared as part of a Continental Scientific Drilling Program (CSDP) review of thermal regimes for the purpose of scoping areas for future research and drilling activities. The upward intrusion of magma from deeper to shallower levels beneath volcanoes obviously plays an important role in their surface deformation. This chapter will examine less obvious roles that hydrothermal processes might play in volcanic deformation. Emphasis will be placed on the effect that the transition from brittle to plastic behavior of rocks is likely to have on magma degassing and. Comparative assessment of five potential sites for hydrothermal magma systems: geochemistry Technical Report White, A F A brief discussion is given of the geochemical objectives and questions that must be addressed in such an evaluation.
Hydrothermal Processes above the Yellowstone Magma Chamber: Large Hydrothermal Systems and Large Hydrothermal Explosions Author(s) Lisa A. Morgan; Lisa A. Morgan U.S. Geological Survey, Denver, Colorado, USA. Search for other works by this author on: GSW. Google Scholar. W.C. In this entry, this extremely ample subject is drastically reduced by two constraints. In the first instance, it is restricted to the discussion of hydrothermal systems, the only type of high-temperature geothermal resource that is exploitable with current conventional technology for the . Hardee HC () Comparative assessment of five potential sites for hydrothermal-magma systems: energy transport. SAND , Sandia Nat Lab/Albuquerque, NM, p 9. Google Scholar. 1. Introduction. Since the first ridge crest hydrothermal activity was found in (Corliss et al., ), more than hydrothermal fields had been found at mid-ocean ridges and back-arc spreading centers by (Baker and German, ).The most recent compilation puts the number of active vent systems at as of (Beaulieu et al., ).
Five closely related investigations of hydrothermal systems include: (1) identification, (2) monitoring, (3) research, (4) exploration, and (5) production. Identification is simply locating the surface expression of a geothermal feature and perhaps noting its temperature and flow. first zone is a deep zone of primary hydrothermal fluid dominated by sodium and chloride. It has been assumed that primary hydrothermal fluid sources are magma fluid, subducted marine sediments and meteoric water. A magma chamber roof within the Pauzhetka geothermal area is assumed to lie at a depth of to km below the. Applications: Using geochemical and isotopic tracers to constrain magma sources and track magma evolution in different settings (rifts, volcanic arcs, collisional orogens); applying mineral-melt equilibria to estimate temperatures and depths of magma storage; analysing minerals and fluid inclusions in magmatic-hydrothermal ores, veins and host. A H Robinson, L Zhang, R W Hobbs, C Peirce, V C H Tong, Magmatic and tectonic segmentation of the intermediate-spreading Costa Rica Rift—a fine balance between magma supply rate, faulting and hydrothermal circulation, Geophysical Journal International, /gji/ggaa, , 1, .