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Ross D. Powell

Researcher at Northern Illinois University

Publications -  115
Citations -  6139

Ross D. Powell is an academic researcher from Northern Illinois University. The author has contributed to research in topics: Glacier & Ice sheet. The author has an hindex of 40, co-authored 115 publications receiving 5614 citations.

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Obliquity-paced Pliocene West Antarctic ice sheet oscillations

Tim R Naish, +60 more
- 19 Mar 2009 - 
TL;DR: A marine glacial record from the upper 600 m of the AND-1B sediment core recovered from beneath the northwest part of the Ross ice shelf is presented and well-dated, ∼40-kyr cyclic variations in ice-sheet extent linked to cycles in insolation influenced by changes in the Earth’s axial tilt (obliquity) during the Pliocene are demonstrated.
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Glacimarine processes at grounding-line fans and their growth to ice-contact deltas

TL;DR: A grounding line fans originate from subglacial and basal stream tunnels at grounding lines of glaciers terminating in a marine environment as discussed by the authors, and during melt seasons discharge forms a turbulent jet beyond the efflux.
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Orbitally induced oscillations in the East Antarctic ice sheet at the Oligocene/Miocene boundary

TL;DR: Sediment data from shallow marine cores in the western Ross Sea are presented that exhibit well dated cyclic variations, and which link the extent of the East Antarctic ice sheet directly to orbital cycles during the Oligocene/Miocene transition, suggesting that orbital influences at the frequencies of obliquity and eccentricity controlled the oscillations of the ice margin at that time.
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Glacimarine processes and inductive lithofacies modelling of ice shelf and tidewater glacier sediments based on quaternary examples

TL;DR: In this article, the authors used information from Holocene sediment and Pleistocene glacimarine sequences with the eight inductive regimes to predict and modelled the lithofacies relationships.
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Glacimarine sedimentary processes, facies and morphology of the south-southeast Alaska shelf and fjords

TL;DR: In this paper, high basal debris loads up to 1.5 m thick of pure debris and rapid glacial flow, which can be more than 3000 m a−1, combine to produce large volumes of siliciclastic glacimarine sediment at some of the highest sediment accumulation rates on record.