A Complete Terrestrial Radiocarbon Record for 11.2 to 52.8 kyr B.P.
Dating Carbon Radiocarbon dating is the best way to determine the age of samples that contain carbon and that are younger than ∼50,000 years, the limit of precision for the meth...
Publications
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34 publications
Late Paleocene to Eocene paleoceanography of the equatorial Pacific Ocean: Stable isotopes recorded at Ocean Drilling Program Site 865, Allison Guyot
An expanded and largely complete upper Paleocene to upper Eocene section was recovered from the pelagic cap overlying Allison Guyot, Mid‐Pacific Mountains at Ocean Drilling Prog...
Tectonic Boundary Conditions for Climate Reconstructions
Abstract In the last ten to fifteen years there has been a movement to break down old disciplinary boundaries in the geosciences in order to develop a more unified view of the e...
Effect of Drake and Panamanian Gateways on the circulation of an ocean model
Geologic studies indicate that prior to ∼40 Ma the Drake Passage was closed and the Central American Isthmus was open. The effect of these changes has been examined in an ocean ...
Phylogeny of Darwin’s finches as revealed by mtDNA sequences
Darwin’s finches comprise a group of passerine birds first collected by Charles Darwin during his visit to the Galápagos Archipelago. The group, a textbook example of adaptive r...
The carbon isotope record of the Cenozoic: history of organic carbon burial and of oxygen in the ocean and atmosphere
Summary Carbon isotope measurements in deep-sea sediments may be used to obtain the history of the mean 13 C content of CO 2 dissolved in the ocean, of 13 C gradients within the...
Response of a coupled ocean/energy balance model to restricted flow through the Central American Isthmus
Prior ocean modeling work suggested that an open central American isthmus would cause a collapse of the North Atlantic thermohaline circulation because of free exchange of low s...
Peak glacial <sup>14</sup> C ventilation ages suggest major draw-down of carbon into the abyssal ocean
Abstract. Ice core records demonstrate a glacial-interglacial atmospheric CO2 increase of ~ 100 ppm. A transfer of ~ 530 Gt C is required to produce the deglacial rise of carbon...