Wisconsinan pre-pleniglacial biotic change in southeastern New Mexico
Interpretation of a 1,5 m mid-to late-Wisconsinan stratigraphic sequence containing fossil vertebrates from the Animal Fair Site in Dry Cave, Eddy County, New Mexico, suggests a progression of habitats, all cooler and moister than today. Species
collected from each level were basically harmonious until climatic deterioration, documented by invasion of new biotic elements at the end of the mid-Wisconsinan, permitted incursion of taxa associated with more boreal areas; these replaced most of the local
Chronology of late Wisconsinan glaciation in middle North America
We propose a chronology of late Wisconsinan glacial fluctuations in middle North America, from Alberta to Wisconsin, based on radiocarbon dates derived solely from wood. Previous chronologies of the southwestern margin of the North American
into the Lake Michigan basin about 11,700 BP, and an advance into the Lake Superior basin about 9 900 BP. In addition, the beginning of late Wisconsinan glaciation, before 20,000 BP, is fairly well documented. None of the fluctuations in the western part
Geochemical data and geophysical measurements from a 554-m ice-core from Taylor Dome, East Antarctica, provide the basis for climate reconstruction in the western Ross Embayment through the entire Wisconsinan and Holocene. Finally, the AA. discuss
The objective of this paper is to 1) interpret the extent of late Wisconsinan glaciation of Dixon Entrance, 2) determine the rate and timing of deglaciation and the sea-level response, and 3) characterize the resultant stratigraphy.
Relict thermal-contraction-crack polygons and past permafrost South of the Late Wisconsinan Glacial Limit in the Mid-Atlantic Coastal Plain, USA
Coastal plain ; Delaware ; Inheritated geomorphological features ; Maryland ; New Jersey ; Patterned ground ; Periglacial features ; Permafrost ; Quaternary ; United States of America ; Virginia ; Wisconsinan
Wisconsinan glacial limit. Examination of Google Earth™ imagery revealed orthogonal to hexagonal polygons, mostly 10–30 m in diameter, at more than 160 sites in sand and gravel deposits in southern New Jersey and the Delmarva Peninsula. The polygons
are interpreted to indicate that continuous permafrost extended to 38.5°N in a zone more than 250 km wide to the south of the glacial limit under a mean annual air temperature of ≤ −6°C probably during the Late Wisconsinan.
Late-Glacial environmental changes south of the Wisconsinan terminal moraine in the Eastern United States
Palynological analyses of 2 sediment cores, one 2.4 m long from northern Delaware, dated about 16,300 to 14,700 C 14 yr B.P., and one 1.8 m long from New Jersey just south of the Wisconsinan terminal moraine and dated about 13,600 to 12,500 C 14 yr
Implications for the dating of Wisconsinan (Weichselian) Late-Glacial events of systematic radiocarbon age differences between terrestrial plant macrofossils from a site in SW Ireland
Archeological site ; C 14 dating ; Fossil fauna ; Ireland ; Lacustrine sediment ; Lateglacial ; Palaeo-environment ; Palynology ; Peat bog ; Pollen diagram ; Quaternary ; Vegetation ; Wisconsinan
Mid-Pleistocene cosmogenic minimum-age limits for pre-Wisconsinan glacial surfaces in southwestern Minnesota and southern Baffin Island : a multiple nuclide approach
Paired 10Be and 26Al analyses indicate that pre-Wisconsinan, glaciated bedrock surfaces near the northern (Baffin Island) and southern (Minnesota) paleo-margins of the Laurentide Ice Sheet have long and complex histories of cosmic-ray exposure
Glacial lake Camelsfoot: a Late Wisconsinan advance stage proglacial lake in the Fraser River valley, Gang Ranch area, British Columbia
British Columbia ; Canada ; Glacial features ; Glaciation ; Lithostratigraphy ; Model ; Palaeogeography ; Proglacial lake ; Quaternary ; Stratigraphy ; Wisconsinan