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Painted Peak
Painted Peak, also called Painted Hill, () is a prominent peak, , on the northern end of the North Masson Range in the Framnes Mountains, Mac. Robertson Land. It was aerially photographed in 1936-1937 and later mapped from these photos by Norwegian cartographers in 1946. It was first visited by an ANARE team in 1955. The ANCA named it for its prominent red-brown coloring. USACAN accepted the name in 1965.Stewart, J., 2011. ''Antarctica: An Encyclopedia,'' 2nd ed. Jefferson, North Carolina and London, McFarland & Company, Inc. 1771 pp. Alberts, F.G. ed., 1995. Geographic names of the Antarctic'. NFS 95-157. Alexandria, Virginia, United States Board on Geographic Names and National Science Foundation. 834 pp. It was used as a tellurometer station in 1962. Geology Painted Peak is the type locality for "Painted Gneiss". At this location the gneiss is about thick, but this thickness may be partly due to folding.Trail, D.S., 1970''Series A (III) Geology, ANARE Interim Reports''. ''A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antarctica
Antarctica () is Earth's southernmost and least-populated continent. Situated almost entirely south of the Antarctic Circle and surrounded by the Southern Ocean, it contains the geographic South Pole. Antarctica is the fifth-largest continent, being about 40% larger than Europe, and has an area of . Most of Antarctica is covered by the Antarctic ice sheet, with an average thickness of . Antarctica is, on average, the coldest, driest, and windiest of the continents, and it has the highest average elevation. It is mainly a polar desert, with annual precipitation of over along the coast and far less inland. About 70% of the world's freshwater reserves are frozen in Antarctica, which, if melted, would raise global sea levels by almost . Antarctica holds the record for the lowest measured temperature on Earth, . The coastal regions can reach temperatures over in summer. Native species of animals include mites, nematodes, penguins, seals and tardigrades. Where vegetation o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quartz
Quartz is a hard, crystalline mineral composed of silica (silicon dioxide). The atoms are linked in a continuous framework of SiO4 silicon-oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO2. Quartz is the second most abundant mineral in Earth's continental crust, behind feldspar. Quartz exists in two forms, the normal α-quartz and the high-temperature β-quartz, both of which are chiral. The transformation from α-quartz to β-quartz takes place abruptly at . Since the transformation is accompanied by a significant change in volume, it can easily induce microfracturing of ceramics or rocks passing through this temperature threshold. There are many different varieties of quartz, several of which are classified as gemstones. Since antiquity, varieties of quartz have been the most commonly used minerals in the making of jewelry and hardstone carvings, especially in Eurasia. Quartz is the mineral defining the val ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buellia
''Buellia'' is a genus of mostly lichen-forming fungi in the family Caliciaceae. The fungi are usually part of a crustose lichen. In this case, the lichen species is given the same name as the fungus. But members may also grow as parasites on lichens (lichenicolous). The algae in the lichen (the photobiont partner) is always a member of the genus ''Trebouxia''. Lichens in the genus are commonly called disc lichens, or button lichens.Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, The genus has a widespread distribution and contains about 450 species. Genetic studies indicate that the genus ''Amandinea'' and ''Buellia'' may be the same,Scheidegger, C. 2009. Amandinea Choisy ex Scheid. & H. Mayrhofer (1993). In: C. W. Smith, A. Aptroot, B. J. Coppins, A. Fletcher, O. L. Gilbert, P. W. James and P. A. Wosley (eds.) The Lichens of Great Britain and Ireland. The British Lichen Society, Natural History Museum Publications, United Kingdom, pp. 142– ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buellia Frigida
''Buellia frigida'' is a species of saxicolous lichen, saxicolous (rock-dwelling), crustose lichen in the family Caliciaceae. It was first species description, described from samples collected from the British National Antarctic Expedition of 1901–1904. It is endemism, endemic to maritime and continental Antarctica, where it is common and widespread, at altitudes up to about . The characteristic appearance of this lichen features shades of grey and black divided into small polygonal patterns. The crusts can generally grow up to in diameter (smaller sizes are more common), although neighbouring individuals may coalesce to form larger crusts. One of the defining characteristics of the lichen is a textured surface with deep cracks, creating the appearance of radiating . These lobes, bordered by shallower fissures, give the lichen a distinctive appearance and textured surface. In addition to its striking appearance, ''Buellia frigida'' shows adaptability to the harsh climate of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biatorella Antarctica
''Biatorella'' is a genus of fungi belonging to the family Biatorellaceae. The genus has a cosmopolitan distribution. Species The genus ''Biatorella'' includes the following species: * '' Biatorella algerica'' * '' Biatorella algoviae'' * ''Biatorella amabilis'' * '' Biatorella antarctica'' * ''Biatorella australica'' * ''Biatorella austroafrica'' * ''Biatorella camptocarpa'' * ''Biatorella consanguinea'' * ''Biatorella conspurcans'' * ''Biatorella contigua'' * ''Biatorella cyphalea'' * ''Biatorella floridensis'' * ''Biatorella fossarum'' * ''Biatorella germanica'' * ''Biatorella hemisphaerica'' * ''Biatorella praenotata'' * ''Biatorella rappii'' * ''Biatorella rousselii'' * ''Biatorella saxicola'' * ''Biatorella zeorina ''Biatorella'' is a genus of fungi belonging to the family Biatorellaceae. The genus has a cosmopolitan distribution. Species The genus ''Biatorella'' includes the following species: * '' Biatorella algerica'' * '' Biatorella algoviae'' * ...'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acarospora Wiliamsii
''Acarospora'' is a genus of mostly lichen-forming fungi in the family Acarosporaceae. Most species in the genus are crustose lichens that grow on rocks in open and arid places all over the world. They may look like a cobblestone road or cracked up old paint, and are commonly called cobblestone lichens or cracked lichens.Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, They usually grow on rock (are " saxicolous"), but some grow on soil ( terricolous) or on other lichens. Some species in the genus are fungi that live as parasites on other lichens (lichenicolous fungi). ''Acarospora'' is a widely distributed genus, with about 128 species according to a 2008 estimate. Species in ''Acarospora'' may be shiny as if covered with a glossy varnish, or dull and powdery looking. They have a diverse range of colors, from the brilliant yellow bright cobblestone lichen, to the dark reddish-brown mountain cobblestone lichen, or they can appear tan, gray ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
