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Heat flow in the Lesser Antilles island arc and adjacent back arc Grenada basin
Citation
Manga, M and Hornbach, MJ and Le Friant, A and Ishizuka, O and Stroncik, N and Adachi, T and Aljahdali, M and Boudon, G and Breitkreuz, C and Fraass, A and Fujinawa, A and Hatfield, R and Jutzeler, M and Kataoka, K and Lafuerza, S and Maeno, F and Martinez-Colon, M and McCanta, M and Morgan, S and Palmer, MR and Saito, T and Slagle, A and Stinton, AJ and Subramanyam, KSV and Tamura, Y and Talling, PJ and Villemant, B and Wall-Palmer, D and Wang, F, Heat flow in the Lesser Antilles island arc and adjacent back arc Grenada basin, Geochemistry, Geophysics, Geosystems, 13, (8) Article Q08007. ISSN 1525-2027 (2012) [Refereed Article]
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Copyright Statement
Copyright 2012 American Geophysical Union
Abstract
Using temperature gradients measured in 10 holes at 6 sites, we generate the first high fidelity heat flow measurements from Integrated Ocean Drilling Program drill holes across the northern and central Lesser Antilles arc and back arc Grenada basin. The implied heat flow, after correcting for bathymetry and sedimentation effects, ranges from about 0.1 W/m2 on the crest of the arc, midway between the volcanic islands of Montserrat and Guadeloupe, to <0.07 W/m2 at distances >15 km from the crest in the back arc direction. Combined with previous measurements, we find that the magnitude and spatial pattern of heat flow are similar to those at continental arcs. The heat flow in the Grenada basin to the west of the active arc is 0.06 W/m2, a factor of 2 lower than that found in the previous and most recent study. There is no thermal evidence for significant shallow fluid advection at any of these sites. Present-day volcanism is confined to the region with the highest heat flow.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Keywords: | IODP 340 |
| Research Division: | Earth Sciences |
| Research Group: | Geology |
| Research Field: | Volcanology |
| Objective Division: | Expanding Knowledge |
| Objective Group: | Expanding knowledge |
| Objective Field: | Expanding knowledge in the earth sciences |
| UTAS Author: | Jutzeler, M (Dr Martin Jutzeler) |
| ID Code: | 107549 |
| Year Published: | 2012 |
| Web of Science® Times Cited: | 30 |
| Deposited By: | Earth Sciences |
| Deposited On: | 2016-03-17 |
| Last Modified: | 2017-10-30 |
| Downloads: | 165 View Download Statistics |
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