|
Palimpsest (geology)
In geology, a palimpsest is a geographical feature composed of superimposed structures created at different times. Palimpsest is beginning to be used by glaciologists to describe contradicting glacial flow indicators, usually consisting of smaller indicators (i.e., striae) overprinted upon larger features (i.e., stoss and lee topography, drumlins, etc.). The name arises by analogy to a medieval palimpsest, a reused parchment manuscript page in which the previous text can sometimes be deciphered. See also *Palimpsest (planetary astronomy) A palimpsest , in Planetary science, planetary astronomy, is an ancient Impact crater, crater that has been degraded over time. They may also be referred to as "ghost craters", "degraded craters", "buried craters", or "pathological craters". Pal ... * Palimpsest (other) Glaciology Paleogeography {{glaciology-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology
Geology (). is a branch of natural science concerned with the Earth and other astronomical objects, the rocks of which they are composed, and the processes by which they change over time. Modern geology significantly overlaps all other Earth sciences, including hydrology. It is integrated with Earth system science and planetary science. Geology describes the structure of the Earth on and beneath its surface and the processes that have shaped that structure. Geologists study the mineralogical composition of rocks in order to get insight into their history of formation. Geology determines the relative ages of rocks found at a given location; geochemistry (a branch of geology) determines their absolute ages. By combining various petrological, crystallographic, and paleontological tools, geologists are able to chronicle the geological history of the Earth as a whole. One aspect is to demonstrate the age of the Earth. Geology provides evidence for plate tectonics, the ev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glaciology
Glaciology (; ) is the scientific study of glaciers, or, more generally, ice and natural phenomena that involve ice. Glaciology is an interdisciplinary Earth science that integrates geophysics, geology, physical geography, geomorphology, climatology, meteorology, hydrology, biology, and ecology. The impact of glaciers on people includes the fields of human geography and anthropology. The discoveries of water ice on the Moon, Mars, Europa (moon), Europa and Pluto add an extraterrestrial component to the field, which is referred to as "astroglaciology". Overview A glacier is a persistent body of dense ice, a form of rock) formed from snow falling and accumulating over a long period of time; glaciers move very slowly, either descending from high mountains, as in valley glaciers, or moving outward from centers of accumulation, as in continental glaciers. Areas of study within glaciology include glacial history and the reconstruction of past glaciation. A glaciologist is a person ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palimpsest
In textual studies, a palimpsest () is a manuscript page, either from a scroll or a book, from which the text has been scraped or washed off in preparation for reuse in the form of another document. Parchment was made of lamb, calf, or kid skin and was expensive and not readily available, so, in the interest of economy, a page was often re-used by scraping off the previous writing. In colloquial usage, the term ''palimpsest'' is also used in architecture, archaeology and geomorphology to denote an object made or worked upon for one purpose and later reused for another; for example, a monumental brass the reverse blank side of which has been re-engraved. Etymology The word ''palimpsest'' derives , which derives from (), a compound word that describes the process: "The original writing was scraped and washed off, the surface resmoothed, and the new literary material written on the salvaged material." The Ancient Greeks used wax-coated tablets to write on with a stylus, and t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palimpsest (planetary Astronomy)
A palimpsest , in Planetary science, planetary astronomy, is an ancient Impact crater, crater that has been degraded over time. They may also be referred to as "ghost craters", "degraded craters", "buried craters", or "pathological craters". Palimpsests have been identified on Mercury, the Earth, the Moon, Mars, Ganymede, Callisto, and possibly even Titan. On Mars, these features are morphologically described as craters that are "flat-floored, rimless, extremely shallow, without central peaks, and would probably represent what remains after erosion." On an icy moon of the Solar System#Outer Solar System, outer Solar System, a palimpsest is a crater whose relief has disappeared due to creep of the icy surface ("viscous relaxation") or subsequent cryovolcanic outpourings, leaving a circular albedo feature, perhaps with a "ghost" of a rim. Ice, Icy surfaces of natural satellites like Callisto (moon), Callisto and Ganymede (moon), Ganymede preserve hints of their history in these rin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palimpsest (other)
A palimpsest is a manuscript page that has been scraped off and used again. Palimpsest may also refer to: Books and journals * ''Palimpsest'' (novel), by Catherynne M. Valente, 2009 * ''Palimpsest'' (novella), by Charles Stross, 2009 *''Palimpsest'', a memoir by Gore Vidal, 1995 *'' Palimpsest: Documents From a Korean Adoption'', a graphic novel and memoir by Lisa Wool-Rim Sjöblom, 2019 *'' Palimpsests: Literature in the Second Degree'', a book by Gérard Genette, 1982 * ''Palimpsest'' (journal), an academic journal about women of the African diaspora *'' The Palimpsest'', now ''Iowa Heritage Illustrated'', a journal of the State Historical Society of Iowa * Palimpsest Press, a Canadian book publishing company Music * ''Palimpsest'' (album), a 2020 album by Protest the Hero *'' Palimpsest (Xenakis)'', a chamber music composition by Iannis Xenakis, 1979 *''Palimpsest I'' and ''Palimpsest II'', orchestral compositions by George Benjamin Science and technology * Palimpsest (geolo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glaciology
Glaciology (; ) is the scientific study of glaciers, or, more generally, ice and natural phenomena that involve ice. Glaciology is an interdisciplinary Earth science that integrates geophysics, geology, physical geography, geomorphology, climatology, meteorology, hydrology, biology, and ecology. The impact of glaciers on people includes the fields of human geography and anthropology. The discoveries of water ice on the Moon, Mars, Europa (moon), Europa and Pluto add an extraterrestrial component to the field, which is referred to as "astroglaciology". Overview A glacier is a persistent body of dense ice, a form of rock) formed from snow falling and accumulating over a long period of time; glaciers move very slowly, either descending from high mountains, as in valley glaciers, or moving outward from centers of accumulation, as in continental glaciers. Areas of study within glaciology include glacial history and the reconstruction of past glaciation. A glaciologist is a person ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
