[HTML][HTML] Atmospheric CO2 during the Mid-Piacenzian Warm Period and the M2 glaciation

E De La Vega, TB Chalk, PA Wilson, RP Bysani… - Scientific Reports, 2020 - nature.com
The Piacenzian stage of the Pliocene (2.6 to 3.6 Ma) is the most recent past interval of
sustained global warmth with mean global temperatures markedly higher (by~ 2–3 C) than …

[HTML][HTML] Constraining the evolution of Neogene ocean carbonate chemistry using the boron isotope pH proxy

SM Sosdian, R Greenop, MP Hain, GL Foster… - Earth and Planetary …, 2018 - Elsevier
Over the course of the Neogene, the Earth underwent profound climatic shifts from the
sustained warmth of the middle Miocene to the development of Plio-Pleistocene glacial …

Boron Isotopes in Foraminifera: Systematics, Biomineralisation, and CO2 Reconstruction

JWB Rae - Boron isotopes: The fifth element, 2018 - Springer
The boron isotope composition of foraminifera provides a powerful tracer for CO 2 change
over geological time. This proxy is based on the equilibrium of boron and its isotopes in …

Monsoon-and ENSO-driven surface-water pCO2 variation in the tropical West Pacific since the Last Glacial Maximum

Z Xiong, T Li, B Hönisch, TJ Algeo, L Bradtmiller… - Quaternary Science …, 2022 - Elsevier
Abstract The East Asian monsoon (EAM) and El Niño-Southern Oscillation (ENSO) are large-
scale oceanic-atmospheric fluctuations that dominate climate variability in the tropical Pacific …

Sub‐permil interlaboratory consistency for solution‐based boron isotope analyses on marine carbonates

M Gutjahr, L Bordier, E Douville… - Geostandards and …, 2021 - Wiley Online Library
Boron isotopes in marine carbonates are increasingly used to reconstruct seawater pH and
atmospheric pCO2 through Earth's history. While isotope ratio measurements from individual …

Deglacial Subantarctic CO2 outgassing driven by a weakened solubility pump

Y Dai, J Yu, H Ren, X Ji - Nature communications, 2022 - nature.com
Abstract The Subantarctic Southern Ocean has long been thought to be an important
contributor to increases in atmospheric carbon dioxide partial pressure (pCO2) during …

Early Pleistocene Obliquity‐Scale pCO2 Variability at ~1.5 Million Years Ago

KA Dyez, B Hönisch, GA Schmidt - Paleoceanography and …, 2018 - Wiley Online Library
In the early Pleistocene, global temperature cycles predominantly varied with~ 41‐kyr
(obliquity‐scale) periodicity. Atmospheric greenhouse gas concentrations likely played a …

No ion is an island: Multiple ions influence boron incorporation into CaCO3

MJ Henehan, CDK Gebbinck, JVB Wyman… - … et Cosmochimica Acta, 2022 - Elsevier
Boron isotope ratios–as measured in marine calcium carbonate–are an established tracer of
past seawater and calcifying fluid pH, and thus a powerful tool for probing marine calcifier …

Atmospheric CO2 estimates for the Miocene to Pleistocene based on foraminiferal δ11B at Ocean Drilling Program Sites 806 and 807 in the Western Equatorial …

M Guillermic, S Misra, R Eagle… - Climate of the Past …, 2021 - cp.copernicus.org
Constraints on the evolution of atmospheric CO2 levels throughout Earth's history are
foundational to our understanding of past variations in climate. Despite considerable effort …

Boric acid and borate incorporation in inorganic calcite inferred from B/Ca, boron isotopes and surface kinetic modeling

JR Farmer, O Branson, J Uchikawa, DE Penman… - … et Cosmochimica Acta, 2019 - Elsevier
The boron concentration (B/Ca ratio) and isotopic composition (δ 11 B) of biogenic calcite
are widely applied to reconstruct past changes in seawater carbonate chemistry. Knowledge …