@article {4466,
	title = {Silicon isotopic composition of dry and wet-based glaciers in Antarctica},
	journal = {Frontiers in Earth Science},
	volume = {8},
	year = {2020},
	month = {07/2020},
	abstract = {<p>Glaciers and ice sheets export significant amounts of silicon (Si) to downstream ecosystems, impacting local and potentially global biogeochemical cycles. Recent studies have shown Si in Arctic glacial meltwaters to have an isotopically distinct signature when compared to non-glacial rivers. This is likely linked to subglacial weathering processes and mechanochemical reactions. However, there are currently no silicon isotope (δ30Si) data available from meltwater streams in Antarctica, limiting the current inferences on global glacial silicon isotopic composition and its drivers. To address this gap, we present dissolved silicon (DSi), δ30SiDSi, and major ion data from meltwater streams draining a polythermal glacier in the region of the West Antarctic Peninsula (WAP; King George Island) and a cold-based glacier in East Antarctica [Commonwealth Stream, McMurdo Dry Valleys (MDV)]. These data, alongside other global datasets, improve our understanding of how contrasting glacier thermal regime can impact upon Si cycling and therefore the δ30SiDSi composition. We find a similar δ30SiDSi composition between the two sites, with the streams on King George Island varying between -0.23 and +1.23\&permil; and the Commonwealth stream varying from -0.40 to +1.14\&permil;. However, meltwater streams in King George Island have higher DSi concentrations, and the two glacial systems exhibit opposite DSi \&ndash; δ30SiDSi trends. These contrasts likely result from differences in weathering processes, specifically the role of subglacial processes (King George Island) and, supraglacial processes followed by in-stream weathering in hyporheic zones (Commonwealth Stream). These findings are important when considering likely changes in nutrient fluxes from Antarctic glaciers under climatic warming scenarios and consequent shifts in glacial thermal regimes.</p>},
	keywords = {LTER-MCM},
	doi = {10.3389/feart.2020.00286},
	url = {https://www.frontiersin.org/articles/10.3389/feart.2020.00286/full},
	author = {Hatton, Jade E. and Hendry, Katharine R. and Hirst, Catherine and Opfergelt, Sophie and Henkel, Susann and Silva-Busso, Adri{\'a}n and Welch, Susan A. and Wadham, Jemma L. and W. Berry Lyons and Bagshaw, Elizabeth and Staubwasser, Michael and Diane M. McKnight}
}
@article {1082,
	title = {Do Cryoconite Holes have the Potential to be Significant Sources of C, N, and P to Downstream Depauperate Ecosystems of Taylor Valley, Antarctica?},
	journal = {Arctic, Antarctic, and Alpine Research},
	volume = {45},
	year = {2013},
	month = {11/2013},
	pages = {440 - 454},
	keywords = {LTER-MCM},
	doi = {10.1657/1938-4246-45.4.440},
	author = {Bagshaw, Elizabeth and Martyn Tranter and Andrew G Fountain and Kathleen A. Welch and Hassan J. Basagic and W. Berry Lyons}
}
@article {1079,
	title = {Environmental factors influencing diatom communities in Antarctic cryoconite holes},
	journal = {Environmental Research Letters},
	volume = {8},
	year = {2013},
	month = {12/2013},
	pages = {045006},
	keywords = {LTER-MCM},
	doi = {10.1088/1748-9326/8/4/045006},
	url = {http://iopscience.iop.org/1748-9326/8/4/045006/pdf/1748-9326_8_4_045006.pdf},
	author = {Lee F. Stanish and Bagshaw, Elizabeth and Diane M. McKnight and Andrew G Fountain and Martyn Tranter}
}
@article {1140,
	title = {Determination of Dissolved Oxygen in the Cryosphere: A Comprehensive Laboratory and Field Evaluation of Fiber Optic Sensors},
	journal = {Environmental Science \& Technology},
	volume = {45},
	year = {2011},
	month = {01/2011},
	pages = {700 - 705},
	keywords = {LTER-MCM},
	doi = {10.1021/es102571j},
	author = {Bagshaw, Elizabeth and Wadham, J. L. and Mowlem, M. and Martyn Tranter and Eveness, J. and Andrew G Fountain and Telling, J.}
}
@article {1137,
	title = {High-resolution monitoring reveals dissolved oxygen dynamics in an Antarctic cryoconite hole},
	journal = {Hydrological Processes},
	volume = {25},
	year = {2011},
	month = {08/2011},
	pages = {2868 - 2877},
	keywords = {LTER-MCM},
	doi = {10.1002/hyp.8049},
	author = {Bagshaw, Elizabeth and Martyn Tranter and Wadham, J. L. and Andrew G Fountain and Mowlem, M.}
}
@inbook {1169,
	title = {The biogeochemistry and hydrology of Dry Valley glaciers: is there life on Martian ice now?},
	booktitle = {Life in Antarctic Deserts and other Cold Dry Environments},
	year = {2010},
	pages = {195-220},
	publisher = {Cambridge University Press},
	organization = {Cambridge University Press},
	address = {Cambridge},
	keywords = {LTER-MCM},
	author = {Martyn Tranter and Bagshaw, Elizabeth and Andrew G Fountain and Forman, C.}
}
@article {1162,
	title = {Dynamic behaviour of supraglacial lakes on cold polar glaciers: Canada Glacier, McMurdo Dry Valleys, Antarctica},
	journal = {Journal of Glaciology},
	volume = {56},
	year = {2010},
	month = {06/2010},
	pages = {366 - 368},
	keywords = {LTER-MCM},
	doi = {10.3189/002214310791968449},
	author = {Bagshaw, Elizabeth and Martyn Tranter and Wadham, J. L. and Andrew G Fountain and Hassan J. Basagic}
}
@phdthesis {1228,
	title = {The Biogeochemistry of Cryoconite Holes on Glaciers in Taylor Valley, Antarctica},
	year = {2008},
	school = {University of Bristol, UK},
	type = {doctoral},
	keywords = {LTER-MCM},
	doi = {LTER},
	author = {Bagshaw, Elizabeth}
}
@article {1227,
	title = {Temporal variations in physical and chemical features of cryoconite holes on Canada Glacier, McMurdo Dry Valleys, Antarctica},
	journal = {Journal of Geophysical Research},
	volume = {113},
	year = {2008},
	pages = {G01S92},
	keywords = {LTER-MCM},
	doi = {10.1029/2008JG000698},
	author = {Andrew G Fountain and Thomas H. Nylen and Martyn Tranter and Bagshaw, Elizabeth}
}
@article {1239,
	title = {The biogeochemical evolution of cryoconite holes on glaciers in Taylor Valley, Antarctica},
	journal = {Journal of Geophysical Research},
	volume = {113},
	year = {2007},
	pages = {G04S35},
	keywords = {LTER-MCM},
	doi = {LTER},
	author = {Bagshaw, Elizabeth and Martyn Tranter and Andrew G Fountain and Kathleen A. Welch and Hassan J. Basagic and W. Berry Lyons}
}
