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Pyroxene exsolution in mafic granulites from the Grove Mountains, East Antarctica: constraints on Pan-African metamorphic conditions
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英文
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Xiaochun Liu,Ziran Zhao,Yue Zhao,Jing Che...
Radar-derived bed rou ghness characterization of Institute and M o¨ ller ice streams, West Antarctica, and comparison with Siple C oast ice streams
ghness characterization M o¨ ller ice streams
2014/5/20
Subglacial bed conditions exert a signif i cant control on
ice stream behavior and evolution, and can be characterized
by determining bed roughness from FFT analysis of r adar-imaged basal reflector...
Isolation, Connectedness and the Uses of Text in Heroic-Era Antarctica: The Cases of Inexpressible and Elephant Islands
Antarctica exploration isolation text Inexpressible Island Elephant Island
2010/9/13
This article focuses on the experiences of early 20th century expeditions trapped over winter on Antarctic islands. These explorers were in a paradoxical position, completely isolated from the world t...
Palmer Station, Antarctica Celebrates Earth Day With an Underwater Clean Up（图）
sea floor Earth Day environmental
2007/4/23
April 20, 2007，Residents at Palmer Station, a year-round U.S. research station on the Antarctic Peninsula, removed old debris from the sea floor near the station in late April 2007, as a part of an an...
Light-stimulated production of dissolved DMSO by a particle-associated process in the Ross Sea, Antarctica
Light-stimulated production dissolved DMSO a particle-associated process the Ross Sea Antarctica
2014/4/21
Dimethylsulfoxide (DMSO) is an abundant form of methylated sulfur in marine systems and it is known to be produced from dimethylsulfide (DMS). Using radiolabeled 35S-DMS and gas chromatography techniq...
Volcanic Blast Likely Killed and Preserved Juvenile Fossil Plesiosaur Found in Antarctica（图）
Volcanic Plesiosaur
2006/12/15
December 11, 2006，Amid 70-mile-an-hour winds and freezing Antarctic conditions, an American-Argentine research team has recovered the well-preserved fossil skeleton of a juvenile plesiosaur--a marine ...
New Records of the Dictyocha antarctica Lohmann, Dictyocha crux Ehrenberg and Nitzschia rectilonga Takano Species from the Sea of Marmara
Dictyocha antarctica Dictyocha crux Nitzschia rectilonga phytoplankton Sea of Marmara
2010/3/18
The silicoflagellate species Dictyocha antarctica Lohmann, Dictyocha crux Ehrenb. and the diatom species Nitzschia rectilonga Takano are reported for the first time from the coastal waters of the nort...
Limnological conditions in Subglacial Lake Vostok, Antarctica
Subglacial Lake Vostok Antarctica
2014/5/5
waters of the lake. Bacterial density is two- to sevenfold higher in accretion ice than the overlying glacial ice,
implying that Lake Vostok is a source of bacterial carbon beneath the ice sheet. Phy...
Photosynthetic performance of benthic microbial mats in Lake Hoare, Antarctica
Photosynthetic performance benthic microbial mats Lake Hoare Antarctica
2014/5/4
We measured in situ photosynthesis of benthic microbial mats at various depths in Lake Hoare, a permanently ice-covered lake of the McMurdo Dry Valleys, Antarctica, using oxygen (O2) microelectrodes. ...
Biogeochemistry of methane in the permanently ice-covered Lake Untersee, central Dronning Maud Land, East Antarctica
Biogeochemistry ice-covered
2014/5/4
We found unprecedentedly high abundances of microbially produced CH4 in the anoxic deep waters of Lake Untersee, an oligotrophic, perennially ice-covered Antarctic freshwater lake. The maximum CH4 con...
Opposing oceanic and atmospheric ENSO influences on the Ross Sea Region, Antarctica
Opposing oceanic atmospheric ENSO influences the Ross Sea Region, Antarctica
2010/1/25
Here we discuss the cause and effect of opposing atmospheric and oceanic ENSO forcings in the Ross Sea, that lead to a net warming in the eastern Ross Sea and a net cooling in the western Ross Sea dur...
The physicochemical habitat of Sclerolinum sp. at Hook Ridge hydrothermal vent, Bransfield Strait, Antarctica
physicochemical habitat Sclerolinum sp. Hook Ridge hydrothermal vent Bransfield Strait Antarctica
2014/5/9
At Hook Ridge hydrothermal vent, a new species of Sclerolinum (Monilifera, Siboglinidae) was found at a water depth of 1,045 m. On the basis of investigations of multicores and gravity cores, the spec...
Denitrification and hydrologic transient storage in a glacial meltwater stream, McMurdo Dry Valleys, Antarctica
Denitrifi cation hydrologic transient storage
2014/5/19
In extreme environments, retention of nutrients within stream ecosystems contributes to the persistence of aquatic
biota and continuity of ecosystem function. In the McMurdo Dry Valleys, Antarctica, ...
On the relative constancy of iodate and total-iodine concentrations accompanying phytoplankton blooms initiated in mesocosm experiments in Antarctica
mesocosm experiments total-iodine concentrations accompanying
2014/5/21
The integrated iodate and total-iodine concentrations accompanying accelerated growth of natural phytoplankton
in eight 14-m deep mesocosm experiments did not vary significantly. Growth was ind...
Phytoplankton phosphorus deficiency and alkaline phosphatase activity in the McMurdo Dry Valley lakes, Antarctica
Phytoplankton phosphorus deficiency alkaline phosphatase activity McMurdo Dry Valley lakes Antarctica
2014/6/9
We assessed the nutrient (N, P) deficiency of phytoplankton from the perennially ice-covered lakes in Taylor Valley, Antarctica, with 14C-based bioassays. Phytoplankton in the near-surface waters from...