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Sidney R. Hemming

Researcher at Lamont–Doherty Earth Observatory

Publications -  232
Citations -  12685

Sidney R. Hemming is an academic researcher from Lamont–Doherty Earth Observatory. The author has contributed to research in topics: Glacial period & Ice sheet. The author has an hindex of 49, co-authored 205 publications receiving 11146 citations. Previous affiliations of Sidney R. Hemming include Stony Brook University & Columbia University.

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Source, timing, frequency and flux of ice‐rafted detritus to the Northeast Atlantic margin, 30–12 ka: testing the Heinrich precursor hypothesis

TL;DR: In this article, a re-analysis of one of the main cores used to generate the precursor concept, OMEX-2K from the Goban Spur covering the last 30 ka, is presented to identify whether the British-Irish Ice Sheet (BIIS) IRD fluxes occur only as precursors before H layers.
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Characterizing the sediment provenance of East Antarctica's weak underbelly: The Aurora and Wilkes sub‐glacial basins

TL;DR: In this paper, the authors extend the toolbox for Antarctic IRD provenance analyses by exploring the application of 40Ar/39Ar ages of detrital biotites; biotite as an IRD tracer eliminates lithological biases imposed by only analyzing hornblendes and allows for characterization of samples with low IRD concentrations.
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Evidence from 40Ar/39Ar Ages for a Churchill province source of ice-rafted amphiboles in Heinrich layer 2

TL;DR: In this paper, the Ca/K ratios of these 1600-2000 Ma old amphiboles have a bimodal distribution in contrast with the uniformity of the Ca /k ratios of H2 amphiboles, indicating that these amphiboles come from an additional Early Proterozoic source besides Churchill province.
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High-resolution chemostratigraphic record of late Pleistocene lake-level variability, Mono Lake, California

TL;DR: In this paper, a record of bulk-sediment carbonate derived from overlapping sections in three outcrops around the Mono Lake basin is presented as a reflection of lake-level variation, based on well-exposed stratigraphy and sedimentary facies changes.
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Evidence for a dynamic East Antarctic ice sheet during the mid-Miocene climate transition

TL;DR: In this paper, the authors present new insights on timing and locations of ice sheet change from two drill sites offshore East Antarctica, IODP Site U1356, Wilkes Land, and ODP Site 1165, Prydz Bay are located adjacent to two major ice drainage areas, the Wilkes Subglacial Basin and the Lambert Graben.