Claypool continued : Extending the isotopic record of sedimentary sulfate. / Crockford, Peter W.; Kunzmann, Marcus; Bekker, Andrey; Hayles, Justin; Bao, Huiming; Halverson, Galen P.; Peng, Yongbo; Bui, Thi H.; Cox, Grant M.; Gibson, Timothy M.; Wörndle, Sarah; Rainbird, Robert; Lepland, Aivo; Swanson-Hysell, Nicholas L.; Master, Sharad; Sreenivas, Bulusu; Kuznetsov, Anton; Krupenik, Valery; Wing, Boswell A.
In: Chemical Geology, Vol. 513, 20.05.2019, p. 200-225.Research output: Contribution to journal › Review article › peer-review
}
TY - JOUR
T1 - Claypool continued
T2 - Extending the isotopic record of sedimentary sulfate
AU - Crockford, Peter W.
AU - Kunzmann, Marcus
AU - Bekker, Andrey
AU - Hayles, Justin
AU - Bao, Huiming
AU - Halverson, Galen P.
AU - Peng, Yongbo
AU - Bui, Thi H.
AU - Cox, Grant M.
AU - Gibson, Timothy M.
AU - Wörndle, Sarah
AU - Rainbird, Robert
AU - Lepland, Aivo
AU - Swanson-Hysell, Nicholas L.
AU - Master, Sharad
AU - Sreenivas, Bulusu
AU - Kuznetsov, Anton
AU - Krupenik, Valery
AU - Wing, Boswell A.
N1 - Publisher Copyright: © 2019 Elsevier B.V. Copyright: Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2019/5/20
Y1 - 2019/5/20
N2 - The Proterozoic Eon spans Earth's middle age during which many important transitions occurred. These transitions include the oxygenation of the atmosphere, emergence of eukaryotic organisms and growth of continents. Since the sulfur and oxygen cycles are intricately linked to most surface biogeochemical processes, these transitions should be recorded in changes to the isotopic composition of marine and terrestrial sulfate minerals. Here we present oxygen (∆ 17 O, δ 18 O) and sulfur (∆ 33 S, δ 34 S) isotope records of Proterozoic sulfate from currently available data together with new measurements of 313 samples from 33 different formations bearing Earth's earliest unambiguous evaporites at 2.4 Ga through to Ediacaran aged deposits. This record depicts distinct intervals with respect to the expression of sulfate isotopes that are not completely captured by established intervals in the geologic timescale. The most salient pattern is the muted ∆ 17 O signatures across the GOE, late Proterozoic and Ediacaran with values that are only slightly more negative than modern marine sulfate, contrasting with highly negative values across the mid-Proterozoic and Cryogenian. We combine these results with estimates of atmospheric composition to produce a gross primary production (GPP) curve for the Proterozoic. Through these results we argue that changes in GPP across Earth history likely help account for many of the changes in the Proterozoic Earth surface environment such as rising atmospheric oxygen, large fluctuations in the size of the marine sulfate reservoir and variations in the isotopic composition of sedimentary sulfate.
AB - The Proterozoic Eon spans Earth's middle age during which many important transitions occurred. These transitions include the oxygenation of the atmosphere, emergence of eukaryotic organisms and growth of continents. Since the sulfur and oxygen cycles are intricately linked to most surface biogeochemical processes, these transitions should be recorded in changes to the isotopic composition of marine and terrestrial sulfate minerals. Here we present oxygen (∆ 17 O, δ 18 O) and sulfur (∆ 33 S, δ 34 S) isotope records of Proterozoic sulfate from currently available data together with new measurements of 313 samples from 33 different formations bearing Earth's earliest unambiguous evaporites at 2.4 Ga through to Ediacaran aged deposits. This record depicts distinct intervals with respect to the expression of sulfate isotopes that are not completely captured by established intervals in the geologic timescale. The most salient pattern is the muted ∆ 17 O signatures across the GOE, late Proterozoic and Ediacaran with values that are only slightly more negative than modern marine sulfate, contrasting with highly negative values across the mid-Proterozoic and Cryogenian. We combine these results with estimates of atmospheric composition to produce a gross primary production (GPP) curve for the Proterozoic. Through these results we argue that changes in GPP across Earth history likely help account for many of the changes in the Proterozoic Earth surface environment such as rising atmospheric oxygen, large fluctuations in the size of the marine sulfate reservoir and variations in the isotopic composition of sedimentary sulfate.
KW - Atmospheric oxygen
KW - Barite
KW - Biosphere
KW - Evaporite
KW - Evolution of life
KW - Gross primary production
KW - Gypsum
KW - Isotope geochemistry
KW - Marine sulfate
KW - Multiple sulfur
KW - Oxygen isotopes
KW - Precambrian
KW - Primary production
KW - Primary productivity
KW - Proterozoic
KW - Sulfate
KW - Sulfur isotopes
KW - Triple oxygen
UR - http://www.scopus.com/inward/record.url?scp=85063395584&partnerID=8YFLogxK
U2 - 10.1016/j.chemgeo.2019.02.030
DO - 10.1016/j.chemgeo.2019.02.030
M3 - Review article
AN - SCOPUS:85063395584
VL - 513
SP - 200
EP - 225
JO - Chemical Geology
JF - Chemical Geology
SN - 0009-2541
ER -
ID: 75951462