Deep crustal geothermal measurements, Hole 504B, Costa Rica Rift

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doi: 10.1029/JB088iB04p03447
Author(s): Becker, Keir; Langseth, M. G.; Von Herzen, R. P.; Anderson, R. N.
Author Affiliation(s): Primary:
Scripps Inst. Oceanogr., La Jolla, CA, United States
Lamont-Doherty Geol. Obs., United States
Woods Hole Oceanogr. Inst., United States
Volume Title: Journal of Geophysical Research
Source: Journal of Geophysical Research, 88(B4), p.3447-3457. Publisher: American Geophysical Union, Washington, DC, United States. ISSN: 0148-0227
Note: In English. 46 refs.; illus. incl. 3 tables, sketch map
Summary: Dominantly conductive mode of heat transfer through the complete section, at 190 ± mW/m2. This is consistent with the predicted plate heat transfer and the hypothesis that the thick sediment cover acts as a seal against hydrothermal circulation of seawater to basement. Permeability of >∼6 × 10-14m2 for the reservoir in the upper ∼100 m of basement, corresponding to a layer of high apparent porosity which has been tentatively identified as a thin layer 2A. Modified journal abstract.
Year of Publication: 1983
Research Program: DSDP Deep Sea Drilling Project
IPOD International Phase of Ocean Drilling
ODP Ocean Drilling Program
Key Words: 18 Geophysics, Solid-Earth; Costa Rica Rift; Crust; DSDP Site 504; Deep Sea Drilling Project; East Pacific; Geophysical surveys; Geothermal systems; Heat flow; Heat transfer; Hydrothermal conditions; IPOD; Interpretation; Leg 111; Leg 137; Leg 140; Leg 148; Leg 69; Leg 70; Leg 83; Leg 92; Ocean Drilling Program; Oceanic crust; Pacific Ocean; Rift zones; South American Pacific; South Pacific; Southeast Pacific; Surveys; Tectonophysics; Temperature; Temperature logging; Thermal conductivity; Well-logging
Coordinates: N010000 N020000 W0833000 W0840000
Record ID: 1983048559
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute.