Quaternary Science Reviews
Papers 6570
1 page of 657 pages (6,570 results)
#1Linn H. Voldstad (UNIS: University Centre in Svalbard)
#2Inger Greve AlsosH-Index: 26
Last. Pernille Bronken Eidesen (UNIS: University Centre in Svalbard)H-Index: 15
view all 9 authors...
Abstract Arctic hotspots, local areas of high biodiversity, are potential key sites for conservation of Arctic biodiversity. However, there is a need for improved understanding of their long-term resilience. The Arctic hotspot of Ringhorndalen has the highest registered diversity of vascular plants in the Svalbard archipelago, including several remarkable and isolated plant populations located far north of their normal distribution range. Here we analyze a lake sediment core from Ringhorndalen f...
#1David Fastovich (UW: University of Wisconsin-Madison)
#2James M. Russell (Brown University)H-Index: 81
Last. John W. Williams (UW: University of Wisconsin-Madison)H-Index: 45
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Abstract Understanding the drivers of vegetation dynamics and no-analog communities in eastern North America is hampered by a scarcity of independent temperature indicators. We present a new branched glycerol dialkyl glycerol tetraether (brGDGT) temperature record from Bonnet Lake, Ohio (18–8 ka) and report uncertainty estimates based on Bayesian linear regression and bootstrapping. We also reanalyze a previously published brGDGT record from Silver Lake, Ohio, using improved chromatographic meth...
#1Shaohua Yang (Nanjing Normal University)H-Index: 1
#2Shitao Chen (Nanjing Normal University)H-Index: 9
Last. Yijia Liang (Nanjing Normal University)H-Index: 1
view all 13 authors...
Abstract A 67-yr-resolution δ18O profile of a230Th-dated stalagmite from Luoshui Cave, central China, is presented to refine the Asian summer monsoon (ASM) history from 336 to 290 kyr BP. The sub-stages of Marine Isotope Stage 9 (MIS 9) are clearly reflected in the Luoshui δ18O record, in line with changes in the Northern Hemisphere summer insolation (NHSI). The concurrency of eight weak monsoon intervals (WMIs) between 320 and 290 kyr BP and shifts in the Atlantic oceanic circulation suggest th...
#1Julia R. Kelson (UM: University of Michigan)
#2Katharine W. Huntington (UW: University of Washington)H-Index: 22
Last. Sierra V. Petersen (UM: University of Michigan)H-Index: 9
view all 7 authors...
Abstract Soil carbonates are important paleoclimate archives, but interpretations of their isotopic compositions (δ18O, δ13C, and Δ47) are hampered by uncertainty in the annual timing of their accumulation. Several previous studies have inferred the annual timing of soil carbonate formation by comparing modern air/soil temperatures with temperatures estimated from the clumped isotopic composition (TΔ47) of Holocene soil carbonates. Here, we compile the existing Δ47 data to first consider if rece...
#1Gregory R. Brooks (Geological Survey of Canada)H-Index: 11
This paper reviews and expands upon stratigraphic and chronologic evidence supporting the interpretation of a strong, early postglacial paleoearthquake in western Quebec-northeastern Ontario, Canada. Event horizon mapping at Dasserat, Dufresnoy and Duparquet lakes, Quebec, coring at Chassignolle and Malartic lakes, Quebec, analysis of varve exposures near both the Twin Falls and Frederick House dams, Ontario, and review of published and unpublished logs of varve exposures, reveal that mass trans...
#1Richard Lewis (University of Adelaide)H-Index: 1
#2John Tibby (University of Adelaide)H-Index: 25
Last. Yusuke Yokoyama (UTokyo: University of Tokyo)H-Index: 37
view all 8 authors...
Abstract Terrestrial sedimentary archives that record environmental responses to climate over the last glacial cycle are underrepresented in subtropical Australia. Limited spatial and temporal palaeoenvironmental record coverage across large parts of eastern Australia contribute to uncertainty regarding the relationship between long-term climate change and palaeoecological turnover; including the extinction of Australian megafauna during the late Pleistocene. This study presents a new, high-reso...
#1David Palacios Estremera (Complutense University of Madrid)H-Index: 22
#2Jesús Ruiz-Fernández (University of Oviedo)H-Index: 7
Last. Aster Team (AMU: Aix-Marseille University)H-Index: 11
view all 9 authors...
Abstract The timing of neoglacial advances in the Antarctic Peninsula (AP) is not yet well constrained. Accurate temporal reconstruction of Neoglaciation in the AP is needed to better understand past glacial responses and regional and global teleconnections during the Holocene. Here, we examine all available information about neoglacial advances in the South Shetland Islands (SSI) as well as in the broader geographical context of the AP region and Antarctic continent. In order to shed light on t...
#1A.S. Dalton (Charles University in Prague)H-Index: 1
#2Martin Margold (Charles University in Prague)H-Index: 13
view all 71 authors...
Abstract The North American Ice Sheet Complex (NAISC; consisting of the Laurentide, Cordilleran and Innuitian ice sheets) was the largest ice mass to repeatedly grow and decay in the Northern Hemisphere during the Quaternary. Understanding its pattern of retreat following the Last Glacial Maximum is critical for studying many facets of the Late Quaternary, including ice sheet behaviour, the evolution of Holocene landscapes, sea level, atmospheric circulation, and the peopling of the Americas. Cu...
#2Juliane Müller (University of Bremen)H-Index: 12
Last. Gerhard KuhnH-Index: 43
view all 6 authors...
#1Zoë A. Thomas (UNSW: University of New South Wales)H-Index: 9
#2Richard T. Jones (University of Exeter)H-Index: 24
Last. Jonathan G. Palmer (UNSW: University of New South Wales)H-Index: 36
view all 13 authors...
Abstract Irreversible shifts of large-scale components of the Earth system (so-called ‘tipping elements’) on policy-relevant timescales are a major source of uncertainty for projecting the impacts of future climate change. The high latitudes are particularly vulnerable to positive feedbacks that amplify change through atmosphere-ocean-ice interactions. Unfortunately, the short instrumental record does not capture the full range of past or projected climate scenarios (a situation particularly acu...
Top fields of study
Glacial period