Geomorphic evolution of Schirmacher Oasis, central Dronning Maud Land, East Antarctica

Schirmacher Oasis is an emergent isolated landmass, surrounded on all sides by ice, occurring along the Princess Astrid Coast in central Dronning Maud Land, East Antarctica. Geomorphological mapping on the oasis revealed different stages of glaciation/deglaciation during the current interglacial per...

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Bibliographic Details
Published in:Polar Science
Format: Article in Journal/Newspaper
Language:English
Published: 2018
Subjects:
Schirmacher oasis
Patterned ground
Roche moutonees
Polar ice front
East Antarctica
Dronning Maud Land
Antarc*
Antarctica
Astrid Coast
Polar Science
Princess Astrid Coast
Online Access:https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=15461
http://id.nii.ac.jp/1291/00015366/
Description
Summary:Schirmacher Oasis is an emergent isolated landmass, surrounded on all sides by ice, occurring along the Princess Astrid Coast in central Dronning Maud Land, East Antarctica. Geomorphological mapping on the oasis revealed different stages of glaciation/deglaciation during the current interglacial period. The scrutiny of various geomorphic signatures, both erosional and depositional, indicate that the deglaciation in this area, spanning a temporal range from 171 Ka to present, was episodic in nature. The recessional regime in Schirmacher Oasis was set in at ∼22 Ka and subsequently the area remained ice free. The warming trend, as evidenced by the continuous recession of ice front since eighties, points towards increase in the area of the oasis in future.

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