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Chemical Diagenesis of a Multicomponent Carbonate System--1: Trace Elements
ABSTRACT Theoretical considerations (i.e., partition coefficients, water/rock ratio, chemistry of interstitial meteoric water) of elemental behaviour during diagenetic stabilization with meteoricExpand
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Evidence for decoupling of atmospheric CO2 and global climate during the Phanerozoic eon
Atmospheric carbon dioxide concentrations are believed to drive climate changes from glacial to interglacial modes, although geological and astronomical mechanisms have been invoked as ultimateExpand
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Coupling of surface temperatures and atmospheric CO2 concentrations during the Palaeozoic era
Atmospheric carbon dioxide concentrations seem to have been several times modern levels during much of the Palaeozoic era (543–248 million years ago), but decreased during the Carboniferous period toExpand
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The chemical composition of shallow-water hydrothermal fluids in Tutum Bay, Ambitle Island, Papua New Guinea and their effect on ambient seawater
Abstract Submarine, hydrothermal venting occurs at Tutum Bay in shallow (5–10 m) water along the inner shelf that contains a patchy distribution of coral–algal reefs. Two types of venting areExpand
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Chemical Diagenesis of a Multicomponent Carbonate System -2: Stable Isotopes
ABSTRACT This study examines the oxygen and carbon isotopic distribution in the brachiopods, crinoids, rugose corals, and matrix/cement from the Mississippian Burlington Limestone (Iowa and Missouri)Expand
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Celestial driver of Phanerozoic climate
Atmospheric levels of CO2 are commonly assumed to be a main driver of global climate. Independent empirical evidence suggests that the galactic cosmic ray flux (CRF) is linked to climate variability.Expand
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The strontium isotopic composition of Ordovician and Silurian brachiopods and conodonts: Relationships to geological events and implications for coeval seawater
utilized for strontium isotope measurements. The results document a gradual decrease in 87 Sr/ 86 Sr, from 0.7091 to 0.7087, from Tremadoc to Llandeilo, a sharp decline to 0.7078 during the lateExpand
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87Sr/86Sr in Precambrian carbonates as an index of crustal evolution
The Sr isotopic composition of ‘seawater’, as measured on carbonate rocks, shows a composite pattern during geologic history. All known Archaean data are compatible with contemporaneous upper mantleExpand
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Paleoclimates, ocean depth, and the oxygen isotopic composition of seawater
A recurrent interpretation of ancient climate based on the oxygen isotopic composition of marine carbonates and cherts suggests that Earth's climate was substantially warmer in the distant past andExpand
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