FN Archimer Export Format
PT J
TI Constraining the rise of oxygen with oxygen isotopes
BT 
AF KILLINGSWORTH, B. A.
   SANSJOFRE, P.
   PHILIPPOT, P.
   CARTIGNY, P.
   THOMAZO, C.
   LALONDE, Stefan
AS 1:1,3;2:1,5;3:2,3;4:3;5:4;6:1;
FF 1:;2:;3:;4:;5:;6:;
C1 Univ Bretagne Occidentale, European Inst Marine Studies, CNRS, UMR6538,Lab Geosci Ocean, F-29280 Plouzane, France.
   Univ Montpellier, CNRS, UMR 5243, Geosci Montpellier, Montpellier 5, France.
   Univ Paris Diderot, Sorbonne Paris Cite, CNRS, Inst Phys Globe Paris,UMR 7154, F-75005 Paris 05, France.
   Univ Bourgogne Franche Comte, CNRS, UMR uB 6282, Lab Biogeosci, 6 Bd Gabriel, F-21000 Dijon, France.
   Sorbonne Univ, Inst Mineral Phys Mat & Cosmochim, Museum Hist Nat, CNRS,UMR 7590, F-75005 Paris, France.
C2 UBO, FRANCE
   UNIV MONTPELLIER, FRANCE
   UNIV PARIS 07, FRANCE
   UNIV BOURGOGNE FRANCHE COMTE, FRANCE
   UNIV PARIS 06, FRANCE
UM LGO
IN DOAJ
IF 12.121
TC 16
UR https://archimer.ifremer.fr/doc/00637/74903/76109.pdf
   https://archimer.ifremer.fr/doc/00637/74903/76110.pdf
   https://archimer.ifremer.fr/doc/00637/74903/76111.docx
   https://archimer.ifremer.fr/doc/00637/74903/76112.pdf
   https://archimer.ifremer.fr/doc/00637/74903/76113.xlsx
LA English
DT Article
AB After permanent atmospheric oxygenation, anomalous sulfur isotope compositions were lost from sedimentary rocks, demonstrating that atmospheric chemistry ceded its control of Earth's surficial sulfur cycle to weathering. However, mixed signals of anoxia and oxygenation in the sulfur isotope record between 2.5 to 2.3 billion years (Ga) ago require independent clarification, for example via oxygen isotopes in sulfate. Here we show <2.31 Ga sedimentary barium sulfates (barites) from the Turee Creek Basin, W. Australia with positive sulfur isotope anomalies of Delta S-33 up to +1.55% and low delta O-18 down to -19.5%. The unequivocal origin of this combination of signals is sulfide oxidation in meteoric water. Geochemical and sedimentary evidence suggests that these S-isotope anomalies were transferred from the paleo-continent under an oxygenated atmosphere. Our findings indicate that incipient oxidative continental weathering, ca. 2.8-2.5 Ga or earlier, may be diagnosed with such a combination of low delta O-18 and high Delta S-33 in sulfates. 
PY 2019
PD OCT
SO Nature Communications
SN 2041-1723
PU Nature Publishing Group
VL 10
IS 4924
UT 000493042500014
DI 10.1038/s41467-019-12883-2
ID 74903
ER

EF