Clumped isotope temperature calibration for calcite: Bridging theory and experimentation
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چکیده
منابع مشابه
Use of Clumped-isotope Thermometry to Constrain the Crystallization Temperature of Diagenetic Calcite
We describe an approach to estimating the crystallization temperatures of diagenetic calcites using clumped-isotope thermometry, a paleothermometer based on the C–O-bond enrichment in carbonates. Application of this thermometer to calcified gastropod shells and calcite cements in an early Eocene limestone from the Colorado Plateau reveals a record of calcite precipitation and replacement at tem...
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Article history: Received 5 December 2012 Received in revised form 3 July 2013 Accepted 16 July 2013 Available online xxxx Editor: G. Henderson
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High precision measurements of molecules containing more than one heavy isotope may provide novel constraints on element cycles in nature. These so-called clumped isotope signatures are reported relative to the random (stochastic) distribution of heavy isotopes over all available isotopocules of a molecule, which is the conventional reference. When multiple indistinguishable atoms of the same e...
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Much of what we know about the history of Earth’s climate derives from the chemistry of carbonate minerals in the sedimentary record. The oxygen isotopic compositions (dO) of calcitic marine fossils and cements have been widely used as a proxy for past seawater temperatures, but application of this proxy to deep geologic time is complicated by diagenetic alteration and uncertainties in the dO o...
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In the tropics, geochemical records from stalagmites have so far mainly been used to qualitatively reconstruct changes in precipitation, but several new methods to reconstruct past temperatures from stalagmite material have emerged recently: i) liquidevapor homogenization of fluid inclusion water ii) noble gas concentrations in fluid inclusion water, iii) the partitioning of oxygen isotopes bet...
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ژورنال
عنوان ژورنال: Geochemical Perspectives Letters
سال: 2020
ISSN: 2410-3403
DOI: 10.7185/geochemlet.2021