Greg Cowie

Greg Cowie
University of Edinburgh | UoE · School of GeoSciences

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8
Publications
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364
Citations

Publications

Publications (8)
Article
A much improved understanding of how water-table fluctuations near the surface affect decomposition and preservation of peat-forming plant litter and surficial peats is needed in order to predict possible feedbacks between the peatland carbon cycle and the global climate system. In this study peatland plants (bryophytes and vascular plants), their...
Article
Sedimentary pigments can provide information on various aspects of benthic processes and biogeochemistry. In this study, sediments from sites at depths of 140 to 1850 m spanning the Pakistan margin oxygen minimum zone (OMZ), and representing dramatic contrasts in depositional conditions and benthic communities, were analysed for pigment yields and...
Article
A transition from fully laminated to highly bioturbated sediments on continental margins is thought to derive from increased animal activity associated with increasing bottom-water oxygen concentration. We examined faunal community responses to oxygen and organic matter gradients across the lower oxygen minimum zone (OMZ) on the bathyal Pakistan ma...
Article
Nitrogen isotope ratios (delta(15)N) were used to help elucidate the sources and fate of ammonium (NH(4)(+)) and nitrate (NO(3)(-)) in two northeastern English estuaries. The dominant feature of NH(4)(+) in the heavily urbanised Tyne estuary was a plume arising from a single point source; a large sewage works. Although NH(4)(+) concentrations (rang...
Article
The Arabian Sea’s unusual features have drawn attention from oceanographers and other scientists since the late 1800s. Water-column processes, including the seasonally reversing monsoon-driven circulation and the associated upwelling and productivity, as well as a basin-wide, mid-water layer of intense oxygen depletion have been the foci of many st...
Article
A high-resolution record of deglacial fluctuations in the Scottish Ice Sheet (SIS) has been studied utilising AMS dating and various biomarkers; in particular delta13Corg and lignin phenols. This has allowed the timing of changes in lithogenic and biogenic inputs to be documented in detail through the last deglaciation. Studies were carried out on...
Article
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Several species of peat moss and vascular plants were collected from field incubation litterbag experiments set up in a peatland located in the boreonemoral zone of central Sweden. These were then analysed using THM in the presence of TMAH which revealed the distributions of both lignin-and Sphagnum-derived phenols within specific species. THM of s...

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