Alexander M. Piotrowski
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View article: Orbital and eustatic control of basin hydrology during the first stage of the Messinian Salinity Crisis
Orbital and eustatic control of basin hydrology during the first stage of the Messinian Salinity Crisis Open
Gypsum and marls from the 15 cycles of the Messinian Yesares Member in the Sorbas Basin, SE Spain, were analysed using a multi‐isotope approach to reconstruct palaeo‐hydrological conditions of the basin and the wider Mediterranean region d…
View article: The role of ocean circulation and regolith removal in triggering the Mid-Pleistocene Transition: Insights from authigenic Nd isotopes
The role of ocean circulation and regolith removal in triggering the Mid-Pleistocene Transition: Insights from authigenic Nd isotopes Open
Approximately 1,250,000 to 700,000 years ago, the pacing of glacial-interglacial cycles changed from 41,000 years to ∼100,000 years, a shift known as the ‘Mid-Pleistocene Transition’ (MPT). The cause – or causes – of this shift remain unce…
View article: Geochemical behavior of C, N, and S in sediments of Hangzhou Bay, Southeastern China: implications for the study of paleoclimate and sea-level changes
Geochemical behavior of C, N, and S in sediments of Hangzhou Bay, Southeastern China: implications for the study of paleoclimate and sea-level changes Open
The correlation between the amount of organic carbon (OC) and sulfur (S) in sediments has been widely used as a paleosalinity indicator to distinguish between marine and freshwater environments. However, whether the ratio of total OC to to…
View article: Boundary processes and neodymium cycling along the Pacific margin of West Antarctica
Boundary processes and neodymium cycling along the Pacific margin of West Antarctica Open
Neodymium (Nd) isotopes have been utilized as a tracer of water mass source in the modern ocean and in palaeoceanographic studies, though the oceanic cycling of Nd is not yet fully constrained. Recent studies have highlighted the importanc…
View article: Coupled changes in western South Atlantic carbon sequestration and particle reactive element cycling during millennial-scale Holocene climate variability
Coupled changes in western South Atlantic carbon sequestration and particle reactive element cycling during millennial-scale Holocene climate variability Open
Abstract Continental shelves have the potential to remove atmospheric carbon dioxide via the biological pump, burying it in seafloor sediments. The efficiency of marine carbon sequestration changes rapidly due to variations in biological …
View article: REE and Nd isotopes in sedimentary Fe oxides as proxies for shale weathering
REE and Nd isotopes in sedimentary Fe oxides as proxies for shale weathering Open
International audience
View article: Paleocirculation and Ventilation History of Southern Ocean Sourced Deep Water Masses During the Last 800,000 Years
Paleocirculation and Ventilation History of Southern Ocean Sourced Deep Water Masses During the Last 800,000 Years Open
Most conceptual models of ocean circulation during past glacial periods invoke a shallowed North Atlantic‐sourced water mass overlying an expanded, poorly ventilated Southern Ocean (SO)‐sourced deep water mass (Southern Component Water or …
View article: Decoupling of dissolved and bedrock neodymium isotopes during sedimentary cycling
Decoupling of dissolved and bedrock neodymium isotopes during sedimentary cycling Open
The radiogenic neodymium isotope ratio 143Nd/144Nd (expressed as εNd) has been applied to examine seawater elemental budgets, sedimentary provenance, oceanic water mass source and circulation, large-scale geochemical cycling, and continent…
View article: Clay mineralogy, strontium and neodymium isotope ratios in the sediments of two High Arctic catchments (Svalbard)
Clay mineralogy, strontium and neodymium isotope ratios in the sediments of two High Arctic catchments (Svalbard) Open
The identification of sediment sources to the ocean is a prerequisite to using marine sediment cores to extract information on past climate and ocean circulation. Sr and Nd isotopes are classical tools with which to trace source provenance…
View article: Clay mineralogy, strontium and neodymium isotope ratios in thesediments of two High Arctic catchments (Svalbard)
Clay mineralogy, strontium and neodymium isotope ratios in thesediments of two High Arctic catchments (Svalbard) Open
The identification of sediment sources to the ocean is a pre-requisite to using ocean sediment cores to extract information on past climate and ocean circulation. Sr and Nd isotopes are classical tools with which to trace source provenance…
View article: Neodymium isotope, stable isotope and radiocarbon data from ODP Site 154-929
Neodymium isotope, stable isotope and radiocarbon data from ODP Site 154-929 Open
Authigenic neodymium isotopes, benthic foraminiferal stable isotopes and radiocarbon dates from ODP 929 in the deep equatorial western Atlantic Ocean.
View article: Deglacial foraminiferal neodymium isotopes form the low latitude Atlantic
Deglacial foraminiferal neodymium isotopes form the low latitude Atlantic Open
Radiogenic neodymium isotopes have been used as a water mass mixing proxy to investigate past changes in ocean circulation. Here we present a new depth transect of deglacial neodymium isotope records measured on uncleaned planktic foramini…
View article: (Table S2) Stable carbon and oxygen isotopic composition of benthic foraminifera of ODP Site 154-929
(Table S2) Stable carbon and oxygen isotopic composition of benthic foraminifera of ODP Site 154-929 Open
(Table S2) Stable carbon and oxygen isotopic composition of benthic foraminifera of ODP Site 154-929