FN Archimer Export Format
PT J
TI Oxygen consumption rates in subseafloor basaltic crust derived from a reaction transport model
BT 
AF ORCUTT, Beth N.
   WHEAT, C. Geoffrey
   ROUXEL, Olivier
   HULME, Samuel
   EDWARDS, Katrina J.
   BACH, Wolfgang
AS 1:1,2;2:3;3:4;4:5;5:6;6:7;
FF 1:;2:;3:PDG-REM-GM-LGM;4:;5:;6:;
C1 Aarhus Univ, Ctr Geomicrobiol, DK-8000 Aarhus, Denmark.
   Bigelow Lab Ocean Sci, East Boothbay, ME 04544 USA.
   Univ Alaska, Global Undersea Res Unit, Moss Landing, CA 95039 USA.
   IFREMER, Ctr Brest, F-29280 Plouzane, France.
   Moss Landing Marine Labs, Moss Landing, CA 95039 USA.
   Univ So Calif, Dept Biol Sci, Los Angeles, CA 90089 USA.
   Univ Bremen, Dept Geosci 5, D-28359 Bremen, Germany.
C2 UNIV AARHUS, DENMARK
   BIGELOW LAB OCEAN SCI, USA
   UNIV ALASKA, USA
   IFREMER, FRANCE
   MOSS LANDING MARINE LABS, USA
   UNIV SO CALIF, USA
   UNIV BREMEN, GERMANY
SI BREST
SE PDG-REM-GM-LGM
IN WOS Ifremer jusqu'en 2018
   DOAJ
   copubli-europe
   copubli-int-hors-europe
IF 10.742
TC 76
UR https://archimer.ifremer.fr/doc/00162/27281/30317.pdf
LA English
DT Article
AB Oceanic crust is the largest potential habitat for life on Earth and may contain a significant fraction of Earth's total microbial biomass; yet, empirical analysis of reaction rates in basaltic crust is lacking. Here we report the first assessment of oxygen consumption in young (similar to 8 Ma) and cool (<25 degrees C) basaltic crust, which we calculate from modelling dissolved oxygen and strontium pore water gradients in basal sediments collected during Integrated Ocean Drilling Program Expedition 336 to 'North Pond' on the western flank of the Mid-Atlantic Ridge. Dissolved oxygen is completely consumed within the upper to middle section of the sediment column, with an increase in concentration towards the sediment-basement interface, indicating an upward supply from oxic fluids circulating within the crust. A parametric reaction transport model of oxygen behaviour in upper basement suggests oxygen consumption rates of 1 nmol cm(-3) ROCK d(-1) or less in young and cool basaltic crust.
PY 2013
PD SEP
SO Nature Communications
SN 2041-1723
PU Nature Publishing Group
VL 4
IS 2539
UT 000325537600002
DI 10.1038/ncomms3539
ID 27281
ER

EF