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Horton Ledge
The Pecora Escarpment () is an irregular escarpment, long, standing southwest of Patuxent Range and marking the southernmost exposed rocks of the Pensacola Mountains. Exploration and name The Pecora Escarpment was mapped by United States Geological Survey (USGS) from surveys and United States Navy air photos in 1956–66. It was named by Dwight Schmidt, geologist to the Pensacola Mountains, 1962–66, for William Thomas Pecora, eighth director of the United States Geological Survey, 1965–71. Location The Pecora Escarpment is an isolated at the southwest end of the Pensacola Mountains. It is south of the Patuxent Ice Stream. The Patuxent Range is to the north of the ice stream. Features, from southwest to northeast, are Horton Ledge, Damschroder Rock and Lulow Rock. Features Horton Ledge . A flat rock ledge that caps the southwest extremity of Pecora Escarpment. Mapped by USGS from surveys and United States Navy air photos, 1956-66. Named by the United States Advisory ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pensacola Mountains
The Pensacola Mountains () are a large group of mountain ranges and peaks that extend in a northeast–southwest direction in the Transantarctic Mountains System, Queen Elizabeth Land region of Antarctica. They comprise the Argentina Range, Forrestal Range, Dufek Massif, Cordiner Peaks, Neptune Range, Patuxent Range, Rambo Nunataks and Pecora Escarpment. These mountain units lie astride the extensive Foundation Ice Stream and Support Force Glacier which drain northward to the Ronne Ice Shelf. Discovery and naming The Pensacola Mountains were discovered and photographed on 13 January 1956 in the course of a transcontinental nonstop plane flight by personnel of United States Navy Operation Deep Freeze I from McMurdo Sound to Weddell Sea and return. They were named by the United States Advisory Committee on Antarctic Names (US-ACAN) for the U.S. Naval Air Station, Pensacola, Florida, in commemoration of the historic role of that establishment in training aviators of the United St ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patuxent Range
The Patuxent Range () is a major range of the Pensacola Mountains, Antarctica. It comprises the Thomas Hills, Anderson Hills, Mackin Table and various nunataks and ridges bounded by the Foundation Ice Stream, Academy Glacier and the Patuxent Ice Stream. Exploration and name The Patuxent Range was discovered and partially photographed on January 13, 1956 in the course of a transcontinental nonstop plane flight by personnel of U.S. Navy Operation Deep Freeze I from McMurdo Sound to Weddell Sea and return. It was named by Advisory Committee on Antarctic Names (US-ACAN) for the Naval Air Station Patuxent River (at Cedar Point, Maryland) located on the south side of the mouth of the Patuxent River. The range was mapped in detail by USGS from surveys and U.S. Navy air photos, 1956-66. Location The Putuxent Range lies to the south of the Foundation Ice Stream, west of the Academy Glacier and northeast of the Patuxent Ice Stream. In the north, the Thomas Hills run along the south ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Geological Survey
The United States Geological Survey (USGS), founded as the Geological Survey, is an agency of the U.S. Department of the Interior whose work spans the disciplines of biology, geography, geology, and hydrology. The agency was founded on March 3, 1879, to study the landscape of the United States, its natural resources, and the natural hazards that threaten it. The agency also makes maps of planets and moons, based on data from U.S. space probes. The sole scientific agency of the U.S. Department of the Interior, USGS is a fact-finding research organization with no regulatory responsibility. It is headquartered in Reston, Virginia, with major offices near Lakewood, Colorado; at the Denver Federal Center; and in NASA Research Park in California. In 2009, it employed about 8,670 people. The current motto of the USGS, in use since August 1997, is "science for a changing world". The agency's previous slogan, adopted on its hundredth anniversary, was "Earth Science in the Pub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 million tons in 2021. It has the world's largest aircraft carrier fleet, with List of aircraft carriers in service, eleven in service, one undergoing trials, two new carriers under construction, and six other carriers planned as of 2024. With 336,978 personnel on active duty and 101,583 in the Ready Reserve, the U.S. Navy is the third largest of the United States military service branches in terms of personnel. It has 299 deployable combat vessels and about 4,012 operational aircraft as of 18 July 2023. The U.S. Navy is one of six United States Armed Forces, armed forces of the United States and one of eight uniformed services of the United States. The United States Navy traces its origins to the Continental Navy, which was established during ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Thomas Pecora
William Thomas Pecora II (February 1, 1913 – July 19, 1972) was an American geologist who served as 8th Director of the U.S. Geological Survey and later as Under Secretary of the Interior. Pecora had a successful career in both scientific and athletic spheres—he completed in fencing at the 1936 Summer Olympics, and during his lifetime was elected to both the American Academy of Arts and Sciences and the National Academy of Sciences. He was an early figure in what is now the Landsat program, and the William T. Pecora Award for remote sensing is named after him. Life and career William Thomas Pecora II was born on February 1, 1913, in Belleville, New Jersey, son of Cono and Anna Pecora (). Both parents were immigrants from Sant'Arsenio, in southern Italy. Pecora was the ninth of 10 children, four boys and six girls. In 1929, the year he graduated Barringer High School, he was awarded a Charles Halsey Scholarship providing $1,000 annually towards education at Princeton Univ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pecora Escarpment USGS
Pecora is an infraorder of even-toed hoofed mammals with ruminant digestion. Most members of Pecora have cranial appendages projecting from their frontal bones; only two extant genera lack them, ''Hydropotes'' and ''Moschus''. The name "Pecora" comes from the Latin word , which means "cattle".Bubenik, A. Epigenetical, Morphological, Physiological, and Behavioral Aspects of Evolution of Horns, Pronghorns, and Antlers. in ''Horns, Pronghorns, and Antlers''. G. Bubenik and A. Bubenik eds. Springer-Verlag. New York. 1990 Although most pecorans have cranial appendages, only some of these are properly called "horns", and many scientists agree that these appendages did not arise from a common ancestor, but instead evolved independently on at least two occasions.Janis, C., K. Scott. The Interrelationships of Higher Ruminant Families with Special Emphasis on the Members of the Cervoidea. ''American Museum Novitates''. 2893: 1-85. 1987. http://digitallibrary.amnh.org/dspace/handle/2246/518 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patuxent Ice Stream
Foundation Ice Stream () is a major ice stream in the Pensacola Mountains of Antarctica. The ice stream drains northward for along the west side of the Patuxent Range and the Neptune Range to enter the Ronne Ice Shelf westward of Dufek Massif. Exploration and name The United States Geological Survey (USGS) mapped the stream from surveys and United States Navy air photos, 1956–66. The United States Advisory Committee on Antarctic Names (US-ACAN) named the stream in recognition of the National Science Foundation, which provided major support to the U.S. Antarctic Research Program during this period. Course File:Thomas Hills USGS.jpg, Head of the ice stream File:C83060s1 Ant.Map Blackburn Nunatak.jpg, west of mid-section File:C83052s5 Schmidt Hills.jpg, east of mid-section File:C82052s5 Ant.Map Cordiner Peaks.jpg, Mouth of the ice stream The Foundation Ice Stream originates to the west of the Patuxent Range. It flows northwest past the Rambo Nunataks to the north and T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Advisory Committee On Antarctic Names
The Advisory Committee on Antarctic Names (ACAN or US-ACAN) is an advisory committee of the United States Board on Geographic Names responsible for recommending commemorative names for features in Antarctica. History The committee was established in 1943 as the Special Committee on Antarctic Names (SCAN). It became the Advisory Committee on Antarctic Names in 1947. Fred G. Alberts was Secretary of the Committee from 1949 to 1980. By 1959, a structured nomenclature was reached, allowing for further exploration, structured mapping of the region and a unique naming system. A 1990 ACAN gazeeter of Antarctica listed 16,000 names. Description The United States does not recognise territorial boundaries within Antarctica, so ACAN assigns names to features anywhere within the continent, in consultation with other national nomenclature bodies where appropriate, as defined by the Antarctic Treaty System. The research and staff support for the ACAN is provided by the United States Geologi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
