Results 151 to 160 of about 20,484 (309)

Late Holocene moisture variability in Arctic Alaska from chitin δ18O

open access: yesBoreas, EarlyView.
Amplified warming in the Arctic has resulted in reduced sea‐ice extent, which can impact regional climate dynamics. Elucidating past moisture variability in response to changing temperatures and sea‐ice conditions can offer insight into how anthropogenic climate change may impact Arctic areas such as the Alaskan North Slope in the future. We contribute
Briana A. Edgerton, Melissa L. Chipman
wiley   +1 more source

Marginal Landscapes? The Azraq Oasis and the cultural landscapes of the final Pleistocene southern Levant

open access: yes, 2009
This thesis examines the final Pleistocene cultural landscape of the Azraq Oasis in eastern Jordan on the basis of archaeological fieldwork conducted at Ayn Qasiyya and AWS 48, two Epipalaeolithic sites in the southern Azraq wetlands.
Richter, T., Richter, Tobias
core  

Identifying the pre‐Odra river system with hydroacoustic and seismic reflection imagery offshore Rügen Island, southern Baltic Sea

open access: yesBoreas, EarlyView.
Understanding the course and dynamics of ancient river systems, such as the pre‐Odra, provides valuable insights into the post‐glacial evolution of landscapes and riverine processes. The northwest‐trending pre‐Odra was an important drainage system of the European mainland into the Baltic Basin during and after the Scandinavian Ice Sheet retreat ...
Maryse C. Schmidt   +4 more
wiley   +1 more source

Pleistocene geology and evolution of the upper Mississippi valley, Minnesota

open access: yes, 1985
s and field guide to the geology and geologic history of the upper Mississippi river drainage basin, Minnesota, Wisconsin and IowaLively, R.S.. (1985). Pleistocene geology and evolution of the upper Mississippi valley, Minnesota.
Lively, R.S.
core  

Upper Pleistocene Prehistory of Central Asia: the Emergence of the Initial Upper Paleolithic. Tashkent - Samarkand (Uzbekistan), 9-15 août 2004

open access: yes, 2005
Jaubert Jacques, Bordes Jean-Guillaume. Upper Pleistocene Prehistory of Central Asia: the Emergence of the Initial Upper Paleolithic. Tashkent - Samarkand (Uzbekistan), 9-15 août 2004.
Bordes, Jean-Guillaume, Jaubert, Jacques
core   +1 more source

Thorncliffe Formation: A proglacial to subglacial lacustrine basin sequence, Greater Toronto Region, Canada

open access: yesBoreas, EarlyView.
Map of Lower sediment (LS) thickness is a surrogate for the distribution of Thorncliffe Formation (TF) and ~75% of TF thickness from the slope of Niagara Escarpment east to Brighton. Inset images show the LS sequence at the Don Valleys brickyards (DVBY) and undeformed TF sand and gravel (~15 m) below Newmarket Till (NT) at sites L and Co.
David R. Sharpe   +3 more
wiley   +1 more source

Upper Pliocene-Pleistocene evolution of the Jarama-Lozoya-Guadalix fluvial system

open access: yes, 1994
This paper deals with the Jarama-Lozoya-Guadalix fluvial system evolution during the Pliocene and Pleistocene times. Duringt the Upper Pliocene and Lower Pleistocene time the Lozoya river was under incission and fluviokarst regimen; at the Middle ...
Soler, Vicente   +7 more
core  

Chironomid‐based summer temperature reconstruction of the Eemian–Weichselian transition at Lichtenberg, northern Germany

open access: yesBoreas, EarlyView.
Understanding the temperature variability of past interglacial cycles is essential to predict future climates. We present a new summer temperature reconstruction, based on the subfossil chironomid record from a small palaeolake adjacent to the Middle Palaeolithic site of Lichtenberg, northern Germany. The record spans from the Saalian late glacial over
Sonja Rigterink   +10 more
wiley   +1 more source

Drilling the Marathousa palaeo‐lake in Greece (Peloponnese): inferring the environmental context of a Middle Pleistocene archaeological site

open access: yesBoreas, EarlyView.
The Megalopolis Basin is located in the central Peloponnese (Greece), a region that is situated along one of the primary Pleistocene biogeographical corridors for intracontinental hominin migration. The basin comprises several hundred metres of Plio‐Pleistocene sediments alternating between clastics and lignites.
Ines J. E. Bludau   +13 more
wiley   +1 more source

Late Miocene – Early Pleistocene paleogeography of the onshore central Hawke’s Bay sector of the forearc basin, eastern North Island, New Zealand, and some implications for hydrocarbon prospectivity

open access: yes, 2008
The timing of trap formation in relation to the timing of source rock burial and maturation are important considerations in evaluating the hydrocarbon prospectivity of onshore parts of the forearc basin in central Hawke’s Bay.
Nelson, Campbell S.   +2 more
core  

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