A unified clumped isotope thermometer calibration (0.5–1,100 C) using carbonate‐based standardization

NT Anderson, JR Kelson, S Kele… - Geophysical …, 2021 - Wiley Online Library
The potential for carbonate clumped isotope thermometry to independently constrain both
the formation temperature of carbonate minerals and fluid oxygen isotope composition …

Reducing uncertainties in carbonate clumped isotope analysis through consistent carbonate‐based standardization

SM Bernasconi, IA Müller, KD Bergmann… - Geochemistry …, 2018 - Wiley Online Library
About a decade after its introduction, the field of carbonate clumped isotope thermometry is
rapidly expanding because of the large number of possible applications and its potential to …

Effects of Improved 17O Correction on Interlaboratory Agreement in Clumped Isotope Calibrations, Estimates of Mineral‐Specific Offsets, and Temperature …

SV Petersen, WF Defliese, C Saenger… - Geochemistry …, 2019 - Wiley Online Library
The clumped isotopic composition of carbonate‐derived CO2 (denoted Δ47) is a function of
carbonate formation temperature and in natural samples can act as a recorder of …

Most Earth-surface calcites precipitate out of isotopic equilibrium

M Daëron, RN Drysdale, M Peral, D Huyghe… - Nature …, 2019 - nature.com
Oxygen-isotope thermometry played a critical role in the rise of modern geochemistry and
remains extensively used in (bio-) geoscience. Its theoretical foundations rest on the …

Omnivariant generalized least squares regression: Theory, geochronological applications, and making the case for reconciled Δ47 calibrations

M Daëron, P Vermeesch - Chemical Geology, 2024 - Elsevier
Least-squares regression methods are mathematically powerful, conceptually and
computationally simple, and widely used in many fields. However, none of the commonly …

Updated calibration of the clumped isotope thermometer in planktonic and benthic foraminifera

M Peral, M Daëron, D Blamart, F Bassinot… - … et Cosmochimica Acta, 2018 - Elsevier
Accurate reconstruction of past ocean temperatures is of critical importance to
paleoclimatology. Carbonate clumped isotope thermometry (“Δ 47”) is a relatively recent …

A robust calibration of the clumped isotopes to temperature relationship for foraminifers

N Meinicke, SL Ho, B Hannisdal, D Nürnberg… - … et Cosmochimica Acta, 2020 - Elsevier
The clumped isotope (Δ 47) proxy is a promising geochemical tool to reconstruct past ocean
temperatures far back in time and in unknown settings, due to its unique thermodynamic …

Warm middle Miocene Indian Ocean bottom water temperatures: Comparison of clumped isotope and Mg/Ca‐based estimates

SE Modestou, TJ Leutert, A Fernandez… - Paleoceanography …, 2020 - Wiley Online Library
The middle Miocene is an important analogue for potential future warm climates. However,
few independent deep ocean temperature records exist, though these are important for …

Temperature Dependence of Clumped Isotopes (∆47) in Aragonite

NJ de Winter, R Witbaard, IJ Kocken… - Geophysical …, 2022 - Wiley Online Library
Clumped isotope thermometry can independently constrain the formation temperatures of
carbonates, but a lack of precisely temperature‐controlled calibration samples limits its …

Oxygen Isotopic Exchange Between CO2 and Phosphoric Acid: Implications for the Measurement of Clumped Isotopes in Carbonates

PK Swart, ST Murray, PT Staudigel… - Geochemistry …, 2019 - Wiley Online Library
Experiments have been conducted in which CO2 gases with varying C and O isotopic
compositions and with stochastic and nonstochastic Δ47 values have been allowed to …