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View article: Paleohydrology of North American Catchments and Rivers at the Onset of the Eocene-Oligocene Climate Transition: Reconstructions from Fluvial Strata of the White River Group, Toadstool Geologic Park, Nebraska
Paleohydrology of North American Catchments and Rivers at the Onset of the Eocene-Oligocene Climate Transition: Reconstructions from Fluvial Strata of the White River Group, Toadstool Geologic Park, Nebraska Open
Member of the Brule Formation of the White River Group at Toadstool Geologic Park in Nebraska. Our approach combined descriptive and quantitative methods to reconstruct river flow, sediment transport, channel dynamics, floodplain behavior,…
View article: A mechanistic understanding of polyethylene biodegradation by the marine bacterium Alcanivorax
A mechanistic understanding of polyethylene biodegradation by the marine bacterium Alcanivorax Open
To this date, the extent of microbial biodegradation of plastics is still an open question. The presence of hydrocarbon degraders as part of the plastisphere identified from marine plastic debris (MPD) samples has prompted different ideas …
View article: Impacts of post-photosynthetic fractionation on the carbon isotopic composition of leaf wax n-alkanes under elevated CO2
Impacts of post-photosynthetic fractionation on the carbon isotopic composition of leaf wax n-alkanes under elevated CO2 Open
<p>The carbon isotopic composition of plant wax <em>n</em>-alkanes (&#948;<sup>13</sup>C<sub><em>n</em>-alkane</sub>) is a well-established proxy for bulk plant &#948;<sup>…
View article: Exploring the use of compound-specific carbon isotopes as a palaeoproductivity proxy off the coast of Adélie Land, East Antarctica
Exploring the use of compound-specific carbon isotopes as a palaeoproductivity proxy off the coast of Adélie Land, East Antarctica Open
The Antarctic coastal zone is an area of high primary productivity, particularly within coastal polynyas, where large phytoplankton blooms and drawdown of CO2 occur. Reconstruction of historical primary productivity changes and the associa…
View article: OPTiMAL: a new machine learning approach for GDGT-based palaeothermometry
OPTiMAL: a new machine learning approach for GDGT-based palaeothermometry Open
In the modern oceans, the relative abundances of glycerol dialkyl glycerol tetraether (GDGT) compounds produced by marine archaeal communities show a significant dependence on the local sea surface temperature at the site of deposition. Wh…
View article: Fatty acid carbon isotopes: a new indicator of marine Antarctic paleoproductivity?
Fatty acid carbon isotopes: a new indicator of marine Antarctic paleoproductivity? Open
The Antarctic coastal zone is an area of high primary productivity, particularly within coastal polynyas where large phytoplankton blooms and drawdown of CO2 occur. Reconstruction of historical primary productivity changes, and the associa…
View article: The DeepMIP contribution to PMIP4: methodologies for selection, compilation and analysis of latest Paleocene and early Eocene climate proxy data, incorporating version 0.1 of the DeepMIP database
The DeepMIP contribution to PMIP4: methodologies for selection, compilation and analysis of latest Paleocene and early Eocene climate proxy data, incorporating version 0.1 of the DeepMIP database Open
The early Eocene (56 to 48 million years ago) is inferred to have been the most recent time that Earth's atmospheric CO2 concentrations exceeded 1000 ppm. Global mean temperatures were also substantially warmer than those of the present da…
View article: OPTiMAL: A new machine learning approach for GDGT-based palaeothermometry
OPTiMAL: A new machine learning approach for GDGT-based palaeothermometry Open
In the modern oceans, the relative abundances of Glycerol dialkyl glycerol tetraether (GDGTs) compounds produced by marine archaeal communities show a significant dependence on the local sea surface temperature at the site of formation. Wh…
View article: The DeepMIP contribution to PMIP4: methodologies for selection, compilation and analysis of latest Paleocene and early Eocene climate proxy data, incorporating version 0.1 of the DeepMIP database
The DeepMIP contribution to PMIP4: methodologies for selection, compilation and analysis of latest Paleocene and early Eocene climate proxy data, incorporating version 0.1 of the DeepMIP database Open
The early Eocene (56 to 48 million years ago) is inferred to have been the most recent time that Earth's atmospheric CO2 concentrations exceeded 1000 ppm. Global mean temperatures were also substantially warmer than present day. As such, s…
View article: Variation in Hydrogen Isotope Composition Among Salt Marsh Plant Organic Compounds Highlights Biochemical Mechanisms Controlling Biosynthetic Fractionation
Variation in Hydrogen Isotope Composition Among Salt Marsh Plant Organic Compounds Highlights Biochemical Mechanisms Controlling Biosynthetic Fractionation Open
Hydrogen isotopes of plant‐derived biomarkers can vary by >100‰ at a single location. Isotope fractionation associated with the movement of water in plant leaves cannot account for this variability alone. Biochemical processes therefore mu…
View article: The impact of environmental change on the use of early pottery by East Asian hunter-gatherers
The impact of environmental change on the use of early pottery by East Asian hunter-gatherers Open
Significance The motivations for the widespread adoption of pottery is a key theme in world prehistory and is often linked to climate warming at the start of the Holocene. Through organic residue analysis, we investigated the contents of >…
View article: Reconstruction of prehistoric pottery use from fatty acid carbon isotope signatures using Bayesian inference
Reconstruction of prehistoric pottery use from fatty acid carbon isotope signatures using Bayesian inference Open
Carbon isotope measurements of individual fatty acids (C16:0 and C18:0) recovered from archaeological pottery vessels are widely used in archaeology to investigate past culinary and economic practices. Typically, such isotope measurements …
View article: Ancient lipids document continuity in the use of early hunter–gatherer pottery through 9,000 years of Japanese prehistory
Ancient lipids document continuity in the use of early hunter–gatherer pottery through 9,000 years of Japanese prehistory Open
Significance Pottery has had a central role in human society for many millennia, but the reasons for the emergence and spread of this technology are poorly understood. First invented by groups of hunter–gatherers living in East Asia during…