Hydrothermal circulation at the Cleft-Vance overlapping spreading center: Results of a magnetometric resistivity survey
We report on a magnetometric resistivity sounding carried out in the overlapping spreading center between the Cleft and Vance segments of the Juan de Fuca Ridge. The data collected reveal a strong three dimensionality in the crustal electrical resistivity structure on wavelengths of a few kilometers. Areas of reduced crustal electrical resistivities, with values approaching that of seawater, are seen beneath the neovolcanic zones of both active spreading centers. We interpret these reduced resistivities as evidence of active hydrothermal circulation within the uppermost 1 km of hot, young oceanic crust.
Citation Information
Publication Year | 1998 |
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Title | Hydrothermal circulation at the Cleft-Vance overlapping spreading center: Results of a magnetometric resistivity survey |
DOI | 10.1029/98JB00599 |
Authors | R.L. Evans, S. C. Webb, M. Jegen, K. Sananikone |
Publication Type | Article |
Publication Subtype | Journal Article |
Series Title | Journal of Geophysical Research B: Solid Earth |
Index ID | 70020778 |
Record Source | USGS Publications Warehouse |