Ice drilling on Princess Elizabeth Land (East Antarctica) aimed to study bedrock and Late Quaternary paleoclimate

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Resumo

Targeted bedrock sampling was carried out on Princess Elizabeth Land (30 km south of the coast, at 69.585591° S; 76.385165° E) by drilling through 545 m thick ice. The borehole was drilled using a new, modified version of the cable-suspended Ice and Bedrock Electromechanical Drill (IBED) designed by the Jilin University (China) and under a joint scientific project between VNIIOkeangeologia, Jilin University and China University of Geosciences (Beijing). The drill site is located on the axis of a high-amplitude linear magnetic anomaly that runs parallel to the coast for more than 500 km from Princess Elizabeth Land to Mac. Robertson Land. In the next Antarctic season, borehole geophysical logging will be conducted including temperature measurements for geothermal heat flux calculations.

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Sobre autores

G. Leitchenkov

Institute for Geology and Mineral Resources of the World Ocean; Saint-Petersburg State University

Email: ptalalay@yandex.ru
Rússia, St. Petersburg; St. Petersburg

P. Talalay

Jilin University; China University of Geosciences

Autor responsável pela correspondência
Email: ptalalay@yandex.ru
República Popular da China, Changchun; Beijing

N. Zhang

Jilin University

Email: ptalalay@yandex.ru
República Popular da China, Changchun

I. Abdrachmanov

Institute for Geology and Mineral Resources of the World Ocean

Email: ptalalay@yandex.ru
Rússia, St. Petersburg

M. Vorobyov

Institute of Geography, Russian Academy of Science

Email: ptalalay@yandex.ru
Rússia, Moscow

D. Gong

Jilin University

Email: ptalalay@yandex.ru
República Popular da China, Changchun

Y. Liu

Jilin University

Email: ptalalay@yandex.ru
República Popular da China, Changchun

Y. Li

China University of Geosciences

Email: ptalalay@yandex.ru
República Popular da China, Beijing

Y. Sun

China University of Geosciences

Email: ptalalay@yandex.ru
República Popular da China, Beijing

I. Lavrentiev

Institute of Geography, Russian Academy of Science

Email: ptalalay@yandex.ru
Rússia, Moscow

A. Ekaykin

Arctic and Antarctic Research Institute

Email: ptalalay@yandex.ru
Rússia, St. Petersburg

D. Khalimov

Arctic and Antarctic Research Institute

Email: ptalalay@yandex.ru
Rússia, St. Petersburg

B. Li

China University of Geosciences

Email: ptalalay@yandex.ru
República Popular da China, Beijing

V. Lipenkov

Arctic and Antarctic Research Institute

Email: ptalalay@yandex.ru
Rússia, St. Petersburg

Bibliografia

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2. Fig. 1. Position of ice drilling site in the north-western Princess Elizabeth Land (a): 1 – Progress – Vostok route; 2 – the well; the stars show scientific stations; field camp “Anomaly” located near the Progress – Vostok logistic route seen in the upper-right corner of the image (б)

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3. Fig. 2. The scheme of radar profiles in the vicinity of the drill site “Anomaly”: 1 – snow stakes; 2 – drill site; 3 – ice core storage; 4 – radar profiles

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4. Fig. 3. The scheme ice thickness distribution (a) and the subglacial topography (б) in the vicinity of the borehole: 1 – drill site; 2 – radar profiles

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