Konter Cliffs
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Mount Giles () is a mainly snow-covered mountain, high, located south-southeast of Lynch Point on the coast of
Marie Byrd Land Marie Byrd Land (MBL) is an unclaimed region of Antarctica. With an area of , it is the largest unclaimed territory on Earth. It was named after the wife of American naval officer Richard E. Byrd, who explored the region in the early 20th centu ...
, Antarctica. The mountain is the highest elevation on the divide between the seaward ends of Frostman Glacier and
Hull Glacier The Hull Glacier () is a glacier, about long, flowing northwest between Mount Giles and Mount Gray into Hull Bay, in Marie Byrd Land, Antarctica. Discovery and name The Hull Glacier was discovered by the United States Antarctic Service (USAS; ...
.


Discovery and name

Mount Giles was discovered on aerial flights from the West Base of the
United States Antarctic Service The United States Antarctic Program (or USAP; formerly known as the United States Antarctic Research Program or USARP and the United States Antarctic Service or USAS) is an organization of the United States government which has a presence in the ...
(USAS) in 1940. It was named for Walter R. Giles technical sergeant,
United States Marine Corps The United States Marine Corps (USMC), also referred to as the United States Marines or simply the Marines, is the maritime land force service branch of the United States Department of Defense. It is responsible for conducting expeditionar ...
(USMC), copilot and radio operator on some of these flights.


Location

Mount Giles is the high point of the divide between Frostman Glacier to the west and
Hull Glacier The Hull Glacier () is a glacier, about long, flowing northwest between Mount Giles and Mount Gray into Hull Bay, in Marie Byrd Land, Antarctica. Discovery and name The Hull Glacier was discovered by the United States Antarctic Service (USAS; ...
to the east before they enter
Hull Bay Hull Bay () is an ice-filled bay, about wide, fed by Hull Glacier, which descends into it between Lynch Point and Cape Burks, on the coast of Marie Byrd Land, Antarctica. Discovery and name Hull Bay was discovered by the United States Antarctic ...
on the coast of Marie Byrd Land. Other features of the divide include the Konter Cliffs, Lynch Point and Miller Spur. Layered
gabbro Gabbro ( ) is a phaneritic (coarse-grained and magnesium- and iron-rich), mafic intrusive igneous rock formed from the slow cooling magma into a holocrystalline mass deep beneath the Earth's surface. Slow-cooling, coarse-grained gabbro is ch ...
crops out at Mount Giles, holding quartz-free
plagioclase Plagioclase ( ) is a series of Silicate minerals#Tectosilicates, tectosilicate (framework silicate) minerals within the feldspar group. Rather than referring to a particular mineral with a specific chemical composition, plagioclase is a continu ...
,
clinopyroxene The pyroxenes (commonly abbreviated Px) are a group of important rock-forming inosilicate minerals found in many igneous and metamorphic rocks. Pyroxenes have the general formula , where X represents ions of calcium (Ca), sodium (Na), iron (Fe ...
and
olivine The mineral olivine () is a magnesium iron Silicate minerals, silicate with the chemical formula . It is a type of Nesosilicates, nesosilicate or orthosilicate. The primary component of the Earth's upper mantle (Earth), upper mantle, it is a com ...
. Isotope analysis indicates an age of 154±35 million years.


Features


Konter Cliffs

. A line of cliffs, high, which surmount the east side of the terminus of Frostman Glacier. Mapped by USGS from surveys and
United States Navy The United States Navy (USN) is the naval warfare, maritime military branch, service branch of the United States Department of Defense. It is the world's most powerful navy with the largest Displacement (ship), displacement, at 4.5 millio ...
tricamera aerial photographs, 1959-65. Named by US-ACAN for Richard W. Konter, a member of the ship's party on the City of New York during the ByrdAE, 1928-30.


Miller Spur

. An ice-covered spur that descends northeast from Mount Giles. The spur terminates in a small rock bluff about west of lower Hull Glacier. The feature was observed and photographed on December 18, 1940, from aircraft of the USAS (1939-41) led by Admiral Richard Byrd. Named by US-ACAN for Linwood T. Miller, sailmaker and member of the
Byrd Antarctic Expedition Richard Evelyn Byrd Jr. (October 25, 1888 – March 11, 1957) was an United States Navy, American naval officer, and pioneering aviator, polar explorer, and organizer of polar logistics. Aircraft flights in which he served as a navigator and e ...
, 1933-35, who produced windproof shirts, parkas, tents and other canvas materials for the expedition.


References


Sources

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