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The Brown Range or Sørtindane Peaks () is a group of seven
The Brown Range or Sørtindane Peaks () is a group of seven peaks
PEAKS is a proteomics software program for tandem mass spectrometry designed for peptide sequencing, protein identification and quantification.
Description
PEAKS is commonly used for peptide identification (Protein ID) through de novo peptide ...
in the Framnes Mountains
The Framnes Mountains is a group of Antarctica, Antarctic mountain ranges in Mac. Robertson Land, to the south of the Mawson Coast.
The range is surrounded by, and largely covered by, an ice sheet.
Discovery
The three major ranges and other less ...
about south of Mount Twintop in Mac. Robertson Land
Mac. Robertson Land is the portion of Antarctica lying southward of the coast between William Scoresby Bay and Cape Darnley. It is located at . In the east, Mac. Robertson Land includes the Prince Charles Mountains. It was named by the Britis ...
, Antarctica
Antarctica () is Earth's southernmost and least-populated continent. Situated almost entirely south of the Antarctic Circle and surrounded by the Southern Ocean (also known as the Antarctic Ocean), it contains the geographic South Pole. ...
.
Exploration
Norwegian cartographers mapped two of the peaks from aerial photographs taken by the Lars Christensen Expedition in 1936, and named them the Sørtindane (South Mountain) Peaks. They are named for D. A. Brown, who was a radio operator atMawson Station
Mawson Station, commonly called Mawson, is one of three permanent bases and research outposts in Antarctica managed by the Australian Antarctic Division (AAD). Mawson lies in Holme Bay in Mac. Robertson Land, East Antarctica in the Australian ...
in 1958.
Description
The Framnes Mountains have elevations up to above sea level, and rise up to above the ice surface. They have dark, weatheredcharnockite
Charnockite () is any orthopyroxene-bearing quartz-feldspar rock formed at high temperature and pressure, commonly found in granulite facies’ metamorphic regions, ''sensu stricto'' as an endmember of the charnockite series.
Charnockite seri ...
bedrock that is littered with light-colored quartz-rich, granitic
A granitoid is a broad term referring to a diverse group of coarse-grained igneous rocks that are widely distributed across the globe, covering a significant portion of the Earth's exposed surface and constituting a large part of the continental ...
gneiss
Gneiss (pronounced ) is a common and widely distributed type of metamorphic rock. It is formed by high-temperature and high-pressure metamorphic processes acting on formations composed of igneous or sedimentary rocks. This rock is formed under p ...
glacial erratics.
The Brown Range is about inland.
During the late Quaternary
The Quaternary ( ) is the current and most recent of the three periods of the Cenozoic Era in the geologic time scale of the International Commission on Stratigraphy (ICS), as well as the current and most recent of the twelve periods of the ...
the ice sheet thickened by about at the Brown Range.
Features
Simpson Ridge
. An isolated, sharp, serrated ridge situated south of Mount Twintop in the Framnes Mountains, Mac. Robertson Land. Mapped from ANARE surveys, 1954-62. Named by ANCA for C.R. Simpson, electronics engineer at Mawson Station in 1967.Gordon Peak
Gordon Peak () is in the center of the Brown Range and is its the highest peak at about above sea level. The two main peaks in this range were plotted by Norwegian cartographers from air photographs taken by the Lars Christensen Expedition (1936). Gordon Peak was used as an unoccupied Trigonometrical station by Max J. Corry, surveyor at Mawson in 1965. It is named for P.J. Gordon, radio technician atMawson Station
Mawson Station, commonly called Mawson, is one of three permanent bases and research outposts in Antarctica managed by the Australian Antarctic Division (AAD). Mawson lies in Holme Bay in Mac. Robertson Land, East Antarctica in the Australian ...
in 1965.
Notes
References
Sources
* * * * mountain ranges of Mac. Robertson Land {{MacRobertsonLand-geo-stub