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Butler Summit
Butler Summit () is a peak rising to about in the extreme western part of the Dais in Wright Valley, McMurdo Dry Valleys. It was named by the 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 ... (2004) after Rhett Butler of Incorporated Research Institutions for Seismology (IRIS); Program Manager for the Global Seismograph Network; United States Antarctic Program investigator for the South Pole Station seismic observatory installed jointly by IRIS and the United States Geological Survey. References * Mountains of Victoria Land McMurdo Dry Valleys {{McMurdoDryValleys-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Summit (topography)
A summit is a point on a surface that is higher in elevation than all points immediately adjacent to it. The topographic terms acme, apex, peak (mountain peak), and zenith are synonymous. The term (mountain top) is generally used only for a mountain peak that is located at some distance from the nearest point of higher elevation. For example, a big, massive rock next to the main summit of a mountain is not considered a summit. Summits near a higher peak, with some prominence or isolation, but not reaching a certain cutoff value for the quantities, are often considered ''subsummits'' (or ''subpeaks'') of the higher peak, and are considered part of the same mountain. A pyramidal peak is an exaggerated form produced by ice erosion of a mountain top. Summit may also refer to the highest point along a line, trail, or route. The highest summit in the world is Mount Everest with a height of above sea level. The first official ascent was made by Tenzing Norgay and Sir Edmund Hillary ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dais (Antarctica)
A dais or daïs ( or , American English also but sometimes considered nonstandard)dais in the Random House Dictionarydais in Oxford Dictionaries Online in the American Heritage Dictionary is a raised platform at the front of a room or hall, usually for one or more speakers or honored guests. Historically, the dais was a part of the at the end of a |
Wright Valley
The Wright Valley, named for Sir Charles Wright, is the central one of the three large Dry Valleys in the Transantarctic Mountains, located west of McMurdo Sound at approximately . Wright Valley contains the Onyx River, the longest river in Antarctica, Lake Brownworth, the origin of the Onyx River, and Lake Vanda, which is fed by the Onyx River. Its southwestern branch, ''South Fork'', is the location of Don Juan Pond. The upland area known as the Labyrinth is at the valley's west end. Although portions of the interconnected valley system were discovered in 1903 by the ''Discovery'' expedition led by Captain Robert Falcon Scott, the Wright Valley located near the centre of the system was not seen until aerial photographs of the region were made in 1947. By the mid 1960s scientists were becoming increasingly intrigued by the paradoxical fact that the valley lay immediately adjacent to the permanent East Antarctic Ice Sheet, yet had remained ice-free for at least thousands of y ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
McMurdo Dry Valleys
The McMurdo Dry Valleys are a row of largely snow-free valleys in Antarctica, located within Victoria Land west of McMurdo Sound. The Dry Valleys experience extremely low humidity and surrounding mountains prevent the flow of ice from nearby glaciers. The rocks here are granites and gneisses, and glacial tills dot this bedrock landscape, with loose gravel covering the ground. It is one of the driest places on Earth and has not seen rain for nearly two million years. The region is one of the world's most extreme deserts, and includes many features including Lake Vida, a saline lake, and the Onyx River, a meltwater stream and Antarctica's longest river. Although no living organisms have been found in the permafrost here, endolithic photosynthetic bacteria have been found living in the relatively moist interior of rocks, and anaerobic bacteria, with a metabolism based on iron and sulfur, live under the Taylor Glacier. The valleys are located within the McMurdo Valleys Antarc ... [...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] |
Rhett Butler (seismologist)
Rhett Butler (Born in 1828) is a fictional character in the 1936 novel '' Gone with the Wind'' by Margaret Mitchell and in the 1939 film adaptation of the same name. It is one of Clark Gable's most recognizable and significant roles. Role Rhett's personality is that of a cynical, charming, and mocking philanderer. He frequently declares that he has no honor, though he respects those he considers true gentlemen or ladies. He often thinks the worst of Scarlett, even as he admires and loves her. During their first meeting, he says she is no lady, just as he is no gentleman. He often mocks her attempts to be gentle, kind, or ladylike, believing it doesn't suit her, and encourages her scheming ways, even as he despises them. He presents a fickle and dapper front, saying things he doesn't mean and causing Scarlett to misunderstand him. His constant, defensive teasing causes her to distrust his true intentions, even when she manages to perceive them. In turn, he does not recognize ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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