Robert F. Anderson

Johann Bown1
Michiel Rutgers Van Der Loeff1
Timothy C Kenna1
1Johann Bown
1Michiel Rutgers Van Der Loeff
1Timothy C Kenna
1Elena Maklashina
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Dust plays a critical role in Earth's climate system and serves as a natural source of iron and other micronutrients to remote regions of the ocean. We have generated records of dust deposition over the past 500,000 years at three sites spanning the breadth of the equatorial Pacific Ocean. Equatorial Pacific dust fluxes are highly correlated with global ice(More)
  • Katherine A Allen, Elisabeth L Sikes, H Onisch, Aurora C Elmore, Thomas P Guilderson, Yair Rosenthal +1 other
  • 2015
A greater amount of CO 2 was stored in the deep sea during glacial periods, likely via greater efficiency of the biologic pump and increased uptake by a more alkaline ocean. Reconstructing past variations in seawater carbonate ion concentration (a major component of alkalinity) enables quantification of the relative roles of different oceanic CO 2 storage(More)
Massive iceberg discharges from the Northern Hemisphere ice sheets, 'Heinrich events', coincided with the coldest periods of the last ice age. There is widespread evidence for Heinrich events and their profound impact on the climate and circulation of the North Atlantic Ocean, but their influence beyond that region remains uncertain. Here we use a(More)
Single electron transfers have been examined in complex II (succinate:ubiquinone oxidoreductase) by the method of pulse radiolysis. Electrons are introduced into the enzyme initially at the [3Fe-4S] and ubiquinone sites followed by intramolecular equilibration with the b heme of the enzyme. To define thermodynamic and other controlling parameters for the(More)
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