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87Sr/86Sr, δ13C and δ18O evolution of Phanerozoic seawater
Abstract A total of 2128 calcitic and phosphatic shells, mainly brachiopods with some conodonts and belemnites, were measured for their δ 18 O , δ 13 C and 87 Sr / 86 Sr values. The dataset coversExpand
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THE ABUNDANCE OF 13C IN MARINE ORGANIC MATTER AND ISOTOPIC FRACTIONATION IN THE GLOBAL BIOGEOCHEMICAL CYCLE OF CARBON DURING THE PAST 800 MA
Abstract New records of the abundance of 13 C in marine organic matter have been compiled for (i) the later Neoproterozoic, from 800 to 543 Ma (346 analyses), (ii) the Cambrian through the JurassicExpand
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The sulfur isotopic evolution of Phanerozoic seawater based on the analysis of structurally substituted sulfate in carbonates
One hundred fifty-six biogenic calcites and 96 whole rock carbonate samples of Paleozoic and Mesozoic age have been analysed for their sulfur isotopic composition. Recorded in structurallyExpand
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Ferruginous Conditions Dominated Later Neoproterozoic Deep-Water Chemistry
Earth's surface chemical environment has evolved from an early anoxic condition to the oxic state we have today. Transitional between an earlier Proterozoic world with widespread deep-water anoxiaExpand
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The isotopic composition of sedimentary sulfur through time
Abstract Our knowledge of the isotopic composition of sedimentary sulfur and its evolution through time is based on the studies of marine evaporitic sulfate deposits and sedimentary pyrite, theExpand
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Isotopic evidence for Mesoarchaean anoxia and changing atmospheric sulphur chemistry
The evolution of the Earth’s atmosphere is marked by a transition from an early atmosphere with very low oxygen content to one with an oxygen content within a few per cent of the present atmosphericExpand
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87 Srr 86 Sr, d 13 C and d 18 O evolution of Phanerozoic seawater
A total of 2128 calcitic and phosphatic shells, mainly brachiopods with some conodonts and belemnites, were measured for their d 18 O, d 13 C and 87 Srr 86 Sr values. The dataset covers the CambrianExpand
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Carbon isotope evidence for the stepwise oxidation of the Proterozoic environment
The oxidation of the Earth's crust and the increase in atmospheric oxygen early in Earth history have been linked to the accumulation of reduced carbon in sedimentary rocks. Trends in the carbonExpand
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Reconstructing Earth's surface oxidation across the Archean-Proterozoic transition
The Archean-Proterozoic transition is characterized by the widespread deposition of organic-rich shale, sedimentary iron formation, glacial diamictite, and marine carbonates recording profound carbonExpand
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The sulfur isotopic record of Precambrian sulfates: new data and a critical evaluation of the existing record
Sulfur isotopic compositions of Precambrian sulfates, both new and previously measured, are summarized and critically evaluated in relation to a seawater sulfate sulfur isotope age curve. AExpand
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