Russian airborne geophysical investigations of Mac. Robertson, Princess. Elizabeth and Wilhelm II Lands, East Antarctica.

2018 ◽  
Keyword(s):  
East Antarctica ◽  
Geophysical Investigations

scholarly journals Glaciological and geophysical investigations aimed at organization of a new airfield at the Station Mirny (East Antarctica)

2016 ◽  
Vol 56 (3) ◽  
pp. 413-426 ◽  
Author(s):  
S. V. Popov ◽  
S. V. Mezhonov ◽  
S. P. Polyakov ◽  
V. L. Mart'yanov ◽  
V. V. Lukin
Keyword(s):  
East Antarctica ◽  
Geophysical Investigations

scholarly journals Geophysical investigations of ice-sheet internal layering and deformation in the Dome C region of central East Antarctica

2000 ◽  
Vol 46 (152) ◽  
pp. 161-166 ◽  
Author(s):  
Richard Hodgkins ◽  
Martin J. Siegert ◽  
Julian A. Dowdeswell
Keyword(s):  
Cross Sections ◽  
Ice Core ◽  
Three Dimensional ◽  
Ice Sheet ◽  
Aerosol Deposition ◽  
East Antarctica ◽  
Internal Layers ◽  
Radio Echo Sounding ◽  
Geophysical Investigations ◽  
The One

AbstractNew maps are presented of three internal ice-sheet radio-echo sounding (RES) layers in the region 73.5–75.75° S, 120–127° E (56 000 km2) around Dome C, central East Antarctica. These layers represent horizons of enhanced acidity resulting from volcanic aerosol deposition, identified from analogue RES data. They are continuous over the entire mapped area, and constitute deformation markers in the ice column. Internal RES layers were initially identified from discrete radar power reflection coefficient profiles and subsequently digitized directly from prints of ice-sheet cross-sections, acquired by continuous RES profiling. Georeferenced vector data are used to generate a 5 km gridcell raster of depth for each internal RES layer, as a basis for contour mapping. Ice deformation in the Dome C region is significant because this is the location of the European Project for Ice Coring in Antarctica. Since internal layers are isochronous, the one-dimensional ice-core data at Dome C can be correlated over the survey area to produce a three-dimensional context.

Some centric diatoms (Bacillariophyta) from Neogene deposits of the Fisher Massif (Prince Charles Mountains, East Antarctica)

2011 ◽  
Vol 45 ◽  
pp. 32-49
Author(s):  
R. M. Gogorev ◽  
Z. V. Pushina
Keyword(s):  
Marine Sediments ◽  
East Antarctica ◽  
Benthic Diatoms ◽  
Detailed Data ◽  
Planktonic Algae ◽  
Centric Diatoms ◽  
Planktonic Diatom ◽  
Oceanic Species ◽  
Diatom Complexes

The richest diatom complexes have revealed due to the study of glacial-marine sediments sampled in the Fisher Massif (Prince Charles Mountains, East Antarctica) during 52nd and 53rd Russian Antarctic Expeditions (Polar Marine Geol. Survey Expedition) in 2006/07 and 2007/08. Three diatom complexes are distinguished according to different palaeoecological conditions: the planktonic one is located in the basis of the outcrop, while mixed planktonic-benthic and benthic ones being located above. The planktonic diatom complexes are dominated by two oceanic species Actinocyclus ingens (up to 8%) and Denticulopsis simonseni (up to 80%). There are 15 planktonic algae, e. g. Eucampia аntarctica, Fragilariopsis spp., Rhizosolenia spp., Rouxia antarctica, Podosira antarctica sp. nov., Stellarima microtrias; and also unknown and non-described benthic diatoms Achnanthes sp., Cocconeis spp., Rhabdonema (s. l.) spp. and Synedra (s. l.) spp. Detailed data on morphology and taxonomy of 10 centric diatoms are presented, including 3 newly described species.

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