Heat flow at the spreading centers of the Guaymas Basin, Gulf of California.

D. L. Williams, K. Becker, L. A. Lawver, R. P. Von Herzen

Research output: Contribution to journalArticle

32 Scopus citations

Abstract

Fifty-four new heat flow measurements in the central troughs of the Guaymas basin support the hypothesis that they are sites of active intrusion. In the N trough a distinct pattern of hydrothermal cooling is revealed, with venting along the W boundary fault of the trough. In the S trough an analogous pattern is apparently superimposed upon a conductive cooling anomaly associated with a recent central intrusion. The discharge of thermal waters occurs along the boundary faults and through other faults associated with a possible horst block located in the N central floor of the S trough. The heat flow patterns suggest that the intrusions are episodic and do not occur simultaneously along the length (15-40 km) of a spreading segment. A review of all available heat flow measurements of the Guaymas basin suggests that most of the recharge for a pervasive regional hydrothermal system is limited to the central depressions, with perhaps some contribution from pore water.- Authors

Original languageEnglish (US)
Pages (from-to)6757-6769
Number of pages13
JournalJournal of Geophysical Research
Volume84
Issue numberB12
DOIs
StatePublished - 1979

ASJC Scopus subject areas

  • Geophysics
  • Forestry
  • Oceanography
  • Aquatic Science
  • Ecology
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Palaeontology

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