Cenozoic Tectonic, Sedimentary and Glacial History of the Continental Shelf West Of Graham Land, Antarctic Peninsula

Author(s):  
R. D. Larter ◽  
M. Rebesco ◽  
L. E. Vanneste ◽  
L. A. P. GambôA ◽  
P. F. Barker
Boreas ◽  
2008 ◽  
Vol 21 (3) ◽  
pp. 209-222 ◽  
Author(s):  
ÓLAFUR INGÓLFSSON ◽  
CHRISTIAN HJORT ◽  
SVANTE BJÖRCK ◽  
R. I. LEWIS SMITH

Author(s):  
Joanna Ćwiąkała ◽  
Mateusz Moskalik ◽  
Jan Rodzik ◽  
Piotr Zagórski

AbstractThe glacial history of the Svalbard archipelago is often a hot topic for researches, but the articles usually refer to a particular piece of Svalbard. The authors of this work studied many scientific articles based on the researches to find and collect this history. Svalbard archipelago is located in the Arctic, at the edge of the continental shelf of Europe. The end of shelf boundary noted occurrence of ice caps in the past glaciations. In turn, the main elements of the landscape of the archipelago are glaciers that are currently in a recession. Spitsbergen (the biggest island of the archipelago) sets the limit of Pleistocene glaciations, and the current state of glaciers allows determining the place where the recession is intense. The main aim of the authors in this study is to show this history only from the late Vistulian to the late Holocene (the beginning of 21st century). Interstadials and Stadials start time varies, as their duration in different places, according to various authors. It is very hard to collect all information and describe this history. By knowing the history of glaciation, we can distinguish in the late Vistulian: Last Glacial Maximum (LGM), Bølling/Older Dryas/Allerød and Younger Dryas (YD). LGM was the stadial in which was the maximum extent of ice sheet in late Vistulian. After this period, ice sheet began to retreat from the continental shelf. In turn, YD was the stadial in which the last advance of glaciers took place, about 11 000 years BC. In the Holocene we can distinguish Holocene Climatic Optimum (in the meantime short Cooling Holocene), Revdalen Stadial, Medieval Warm Period, Little Ice Age (LIA) and 20th century warming. The maximum extent of glaciers in Holocene was in LIA. In LIA, the extent of glaciers was bigger than in YD. In 20th century a warming started and continues until now.


2013 ◽  
Vol 61 ◽  
pp. 47-61 ◽  
Author(s):  
J.P. Klages ◽  
G. Kuhn ◽  
C.-D. Hillenbrand ◽  
A.G.C. Graham ◽  
J.A. Smith ◽  
...  

1989 ◽  
Vol 31 (2) ◽  
pp. 255-276 ◽  
Author(s):  
Douglas S. Kennedy ◽  
John B. Anderson

AbstractMarguerite Bay, situated between the subpolar glacial regime of the northern Antarctic Peninsula and the polar glacial regime of West Antarctica, is ideally located to test various models of glacial and glacial-marine sedimentation and specific scenarios of late Wisconsin ice sheet expansion. Piston cores and single-channel seismic reflection data were collected during the Deep Freeze 85 and 86 expeditions to determine the late Quaternary history of the area. Seismic data in the bay show a rugged seafloor, with numerous deep troughs and a very thin layer of sediment over crystalline basement or older sediments. Glacial erosion is important in modifying existing features, although the ultimate repository of the eroded material is not known; it is not found within the bay. The piston cores are topped by diatomaceous muds, which are underlain by terrigenous muds and muddy gravels that imply deposition beneath an ice shelf. Basal tills were penetrated at three sites, reflecting deposition by a grounded marine ice sheet. A reconstruction of the glacial history of Marguerite Bay since the last glacial maximum shows grounded ice filling the bay in late Wisconsin time. Rising sea level caused an uncoupling of the ice sheet and slow retreat of an ice shelf throughout the Holocene.


2009 ◽  
Vol 28 (27-28) ◽  
pp. 3049-3065 ◽  
Author(s):  
Bradley R. Michalchuk ◽  
John B. Anderson ◽  
Julia S. Wellner ◽  
Patricia L. Manley ◽  
Wojciech Majewski ◽  
...  

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