@article {2964,
	title = {Ice-sheet expansion from the Ross Sea into McMurdo Sound, Antarctica, during the last two glaciations},
	journal = {Quaternary Science Reviews},
	volume = {278},
	year = {2022},
	month = {Jan-02-2022},
	pages = {107379},
	abstract = {An understanding of Antarctic Ice Sheet (AIS) behavior is important for future sea-level predictions. Here, we examine past ice-sheet history in the McMurdo Sound region of the western Ross Sea over the last two glacial-interglacial cycles in order to gain insight into the drivers of ice-sheet change. Surficial mapping, along with radiocarbon dates of lacustrine algae and uranium-thorium disequilibrium dates of lacustrine carbonates from ice-dammed lakes, allow reconstruction of the timing and origin of grounded ice in McMurdo Sound during the last glacial maximum (LGM) and penultimate glaciation. During the LGM, ice-surface elevation profiles and distribution of erratics indicate ice flow into southern McMurdo Sound from the Ross Sea, rather than seaward expansion of local glaciers from the Royal Society Range. The grounded ice in McMurdo Sound flowed westward to block the mouths of valleys in the Royal Society Range and to dam proglacial lakes. In Marshall Valley, maximum ice extent during what is termed the Ross Sea glaciation, was achieved by 18 ka and remained close to this position until after 14 ka. The pattern of surficial deposits suggests that ice during the penultimate glaciation, locally named the Marshall glaciation, was slightly more extensive than that of the LGM but had a similar Ross Sea origin. Maximum ice extent in Marshall Valley occurred at \~{}145{\textendash}150 ka; the grounded ice may have receded from the valley mouth shortly after 138 ka. Both ice expansions occurred broadly during times of low Antarctic air temperatures, which have been linked to insolation minima. However, the lack of widespread surface melting ablation zones on the AIS indicates that the link between ice expansion and orbital forcing is likely to be indirect and possibly driven through the ocean. Closer examination of the precise timing of the glacial maxima in Marshall Valley shows that the Marshall glaciation occurred synchronously with the penultimate global maximum; ice recession took place during Termination II. In contrast, maximum ice extent during the Ross Sea glaciation along the Royal Society Range occurred after the global LGM, during Termination I. Deglaciation was primarily an early Holocene event. We attribute this delayed maximum and deglaciation (relative to global events) to the effect of rising accumulation on ice-sheet mass balance.},
	issn = {02773791},
	doi = {10.1016/j.quascirev.2022.107379},
	url = {https://linkinghub.elsevier.com/retrieve/pii/S0277379122000105},
	author = {Heath, Stephanie and Hall, Brenda L. and Denton, George H. and Henderson, Gideon M. and Hendy, Chris H.}
}
@article {2440,
	title = {Constant Holocene Southern-Ocean 14C reservoir ages and ice-shelf flow rates},
	volume = {296},
	year = {2010},
	month = {2010/7/15/},
	pages = {115 - 123},
	abstract = {Southern Ocean radiocarbon reservoir ages (i.e. non-zero radiocarbon ages in seawater) are the highest in the world{\textquoteright}s surface ocean. Constraining these reservoir ages at present and in the past is important not only because unknown reservoir ages limit the interpretation of Antarctic radiocarbon chronologies, but also because reservoir ages provide information about ocean circulation (as a recorder of past circulation and as an end member for major deep-water masses in today{\textquoteright}s ocean). In this study, we use paired U/Th and 14C ages of an unusual set of solitary coral samples trapped by fringing ice shelves in the Ross Sea to provide the first detailed study of Holocene reservoir ages for the Southern Ocean. Our results indicate a relatively constant marine radiocarbon reservoir age of 1144 {\textpm} 120 years for the past 6000 years. These results are consistent with extrapolation of the relationship between 14C and alkalinity seen elsewhere, supporting the use of this empirical relationship in high latitudes. The results also suggest constant deep-ocean circulation and air{\textendash}sea exchange during the Holocene and provide a good target for tuning ocean models of modern circulation. Combining the new ages for corals with their distance from the modern-day ice-shelf grounding line provides some of the first long-term records of ice-shelf velocities for any region and indicates constant flow of the McMurdo Ice Shelf during the Holocene, at a rate similar to that observed today.},
	keywords = {coral, marine reservoir effect, McMurdo Ice Shelf, radiocarbon, Southern Ocean, U/Th dating},
	isbn = {0012-821X},
	doi = {10.1016/j.epsl.2010.04.054},
	url = {http://www.sciencedirect.com/science/article/pii/S0012821X10003067},
	author = {Hall, Brenda L. and Henderson, Gideon M. and Baroni, Carlo and Kellogg, Thomas B.}
}
@article { ISI:000279905800011,
	title = {Constant Holocene Southern-Ocean C-14 reservoir ages and ice-shelf flow rates},
	journal = {EARTH AND PLANETARY SCIENCE LETTERS},
	volume = {296},
	number = {{1-2}},
	year = {2010},
	month = {JUL 15},
	pages = {115-123},
	type = {Article},
	abstract = {Southern Ocean radiocarbon reservoir ages (i.e. non-zero radiocarbon ages in seawater) are the highest in the world{\textquoteright}s surface ocean. Constraining these reservoir ages at present and in the past is important not only because unknown reservoir ages limit the interpretation of Antarctic radiocarbon chronologies, but also because reservoir ages provide information about ocean circulation (as a recorder of past circulation and as an end member for major deep-water masses in today{\textquoteright}s ocean). In this study, we use paired U/Th and C-14 ages of an unusual set of solitary coral samples trapped by fringing ice shelves in the Ross Sea to provide the first detailed study of Holocene reservoir ages for the Southern Ocean. Our results indicate a relatively constant marine radiocarbon reservoir age of 1144 +/- 120 years for the past 6000 years. These results are consistent with extrapolation of the relationship between C-14 and alkalinity seen elsewhere, supporting the use of this empirical relationship in high latitudes. The results also suggest constant deep-ocean circulation and air-sea exchange during the Holocene and provide a good target for tuning ocean models of modern circulation. Combining the new ages for corals with their distance from the modern-day ice-shelf grounding line provides some of the first long-term records of ice-shelf velocities for any region and indicates constant flow of the McMurdo Ice Shelf during the Holocene, at a rate similar to that observed today. (C) 2010 Elsevier B.V. All rights reserved.},
	keywords = {coral, marine reservoir effect, McMurdo Ice Shelf, radiocarbon, Southern Ocean, U/Th dating},
	issn = {0012-821X},
	doi = {10.1016/j.epsl.2010.04.054},
	author = {Hall, Brenda L. and Henderson, Gideon M. and Baroni, Carlo and Kellogg, Thomas B.}
}
@conference {1648,
	title = {The Holocene radiocarbon reservoir effect in the western Ross Sea},
	booktitle = {Annual West Antarctic Ice Sheet Meeting},
	year = {2005},
	note = {id: 434},
	month = {2005},
	address = {Sterling, VA},
	author = {Hall, Brenda L. and Henderson, Gideon M. and Baroni, Carlo and Kellog, Thomas}
}
