FN Archimer Export Format
PT J
TI The control of weathering processes on riverine and seawater hafnium isotope ratios
BT 
AF BAYON, Germain
   VIGIER, Nathalie
   BURTON, Kevin W.
   BRENOT, Agnès
   CARIGNAN, Jean
   ETOUBLEAU, Joel
   CHU, Nan-Chin
AS 1:1;2:2;3:3;4:2;5:2;6:1;7:4;
FF 1:PDG-DOP-DCB-GM-LGM;2:;3:;4:;5:;6:PDG-DOP-DCB-GM-LGM;7:;
C1 IFREMER, Dept Geosci Marines, F-29280 Plouzane, France.
   Ctr Rech Petrog & Geochim, F-54501 Vandoeuvre Les Nancy, France.
   Open Univ, Dept Earth Sci, Milton Keynes MK7 6AA, Bucks, England.
   Univ Oxford, Dept Earth Sci, Oxford OX1 3PR, England.
C2 IFREMER, FRANCE
   CTR RECH PETROG & GEOCHIM, FRANCE
   UNIV OPEN, UK
   UNIV OXFORD, UK
SI BREST
SE PDG-DOP-DCB-GM-LGM
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-europe
IF 3.477
TC 62
UR https://archimer.ifremer.fr/doc/2006/publication-2078.pdf
LA English
DT Article
DE ;Ocean chemistry;Silicate weathering;Rivers;Hafnium isotopes
AB Hafnium Hf-176/Hf-177 isotope ratio variations in marine records are thought to reflect changes in continental weathering through time, but the behavior of Hf in rivers, and during weathering, is not well understood. Here, we present Hf-176/Hf-177 data for rivers, bedrock, soils, and leaching experiments for the Moselle basin, Vosges, France. These data strongly suggest that the Hf-176/Hf-177 composition of river waters is controlled by preferential dissolution of accessory phases (i.e., apatite, sphene) versus more resistant minerals (e.g., K-feldspar) and linked to the intensity of silicate weathering. Estimates for the global isotopic composition of riverine Hf suggest that the ocean Hf budget may be dominated by river input, and variations seen in marine records can be directly related to changes in silicate weathering intensity.
PY 2006
PD JUL
SO Geology
SN 0091-7613
PU Geological Society of America
VL 34
IS 6
UT 000238274100005
BP 433
EP 436
DI 10.1130/G22130.1
ID 2078
ER

EF