FN Archimer Export Format
PT J
TI Heat flow from the Southeast Indian Ridge flanks between 80°E and 140°E: Data review and analysis - art. no. B01101
BT 
AF GELI, Louis
   LEE, T
   COCHRAN, J
   FRANCHETEAU, J
   ABBOTT, D
   LABAILS, Cinthia
   APPRIOU, D
AS 1:1;2:2;3:3;4:4;5:3;6:1;7:1;
FF 1:PDG-DOP-DCB-GM-LGG;2:;3:;4:;5:;6:PDG-DOP-DCB-GM-LGG;7:;
C1 IFREMER, Marine Geosci Dept, F-29280 Plouzane, France.
   Univ Calif Riverside, Dept Earth Sci, Riverside, CA 92521 USA.
   Columbia Univ, Lamont Doherty Geol Observ, Palisades, NY 10964 USA.
   Inst Univ European De La Mer, F-29280 Plouzane, France.
C2 IFREMER, FRANCE
   UNIV CALIF RIVERSIDE, USA
   UNIV COLUMBIA, USA
   UBO, FRANCE
SI BREST
SE PDG-DOP-DCB-GM-LGG
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
   copubli-int-hors-europe
IF 3.147
TC 4
UR https://archimer.ifremer.fr/doc/2008/publication-3878.pdf
LA English
DT Article
CR MD 120 / ANTAUS
   MD 125 / SWIFT BIS-CARHOT
BO Marion Dufresne
DE ;mid ocean ridges;heat flow;marine geophysics
AB We analyze available heat flow data from the flanks of the Southeast Indian Ridge adjacent to or within the Australian-Antarctic Discordance (AAD), an area with patchy sediment cover and highly fractured seafloor as dissected by ridge- and fracture-parallel faults. The data set includes 23 new data points collected along a 14-Ma old isochron and 19 existing measurements from the 20- to 24-Ma old crust. Most sites of measurements exhibit low heat flux (from 2 to 50 mW m(-2)) with near-linear temperature-depth profiles except at a few sites, where recent bottom water temperature change may have caused nonlinearity toward the sediment surface. Because the igneous basement is expected to outcrop a short distance away from any measurement site, we hypothesize that horizontally channelized water circulation within the uppermost crust is the primary process for the widespread low heat flow values. The process may be further influenced by vertical fluid flow along numerous fault zones that crisscross the AAD seafloor. Systematic measurements along and across the fault zones of interest as well as seismic profiling for sediment distribution are required to confirm this possible, suspected effect.
PY 2008
SO Journal of Geophysical Research - Solid earth
SN 0148-0227
PU American Geophysical Union
VL 113
IS B1
UT 000252183900001
DI 10.1029/2007JB005001
ID 3878
ER

EF