|
Tisa Rocks
The Tisa Rocks or Tisa Walls ( cs, Tiské stěny; german: Tyssaer Wände) are a group of rocks in the Czech Republic. It is located in the western Elbe Sandstone Mountains, not far from its topographical boundary with the Ore Mountains. The region, with its rock pillars up to 30 m high, is one of the major tourist attractions of the region. The Tisa Rocks and the neighbouring Bürschlické Rocks are protected as a nature monument. Topography and geology The Tisa Rocks are located at a height of about 600 m above sea level. They form a line of rock outcrops drawn up in an arc on the westernmost edge of the sandstone beds of the Elbe Sandstone Mountains from the Ore Mountain escarpment on Czech soil. About a kilometre west of them on the outskirts of Tisa stands the coarse- and medium-grained muscovite-biotite-gneiss, orthogneiss of the Eastern Ore Mountain region. This also strike and dip, strikes eastwards on the hillside south of the village. The rocks are frequently vertical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Loam
Loam (in geology and soil science) is soil composed mostly of sand (particle size > ), silt (particle size > ), and a smaller amount of clay (particle size < ). By weight, its mineral composition is about 40–40–20% concentration of sand–silt–clay, respectively. These proportions can vary to a degree, however, and result in different types of loam soils: sandy loam, silty loam, clay loam, sandy clay loam, silty clay loam, and loam. In the , textural classification triangle, the only soil that is not predominantly sand, silt, or clay is called "loam". Loam soils generally contain more nutrients, moisture, and |
Climbing Areas Of The Czech Republic
Climbing is the activity of using one's hands, feet, or any other part of the body to ascend a steep topographical object that can range from the world's tallest mountains (e.g. the eight thousanders), to small boulders. Climbing is done for locomotion, sporting recreation, and for competition, and is also done in trades that rely on ascension; such as emergency rescue and military operations. Climbing is done indoors and outdoors and on natural (e.g. rock and ice) and artificial surfaces. Professional mountain guides or rock climbing guides (e.g. the UIAGM), were a significant element in developing the popularity of the sport in the natural environment, and remain so today. Since the 1980s, the development of competition climbing and the availability of artificial climbing walls have dramatically increased the popularity of rock climbing as a sport and led to the emergence of professional rock climbers, such as Wolfgang Güllich, Chris Sharma, Lynn Hill and Catherine D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Děčín District
Děčín District ( cs, okres Děčín) is one of seven districts ('' okres'') located within the Ústí nad Labem Region in the Czech Republic. Its capital is the city of Děčín. Complete list of municipalities Arnoltice - Benešov nad Ploučnicí - Bynovec - Česká Kamenice - Děčín - Dobkovice - Dobrná - Dolní Habartice - Dolní Podluží - Dolní Poustevna - Doubice - Františkov nad Ploučnicí - Heřmanov - Horní Habartice - Horní Podluží - Hřensko - Huntířov - Chřibská - Janov - Janská - Jetřichovice - Jílové - Jiřetín pod Jedlovou - Jiříkov - Kámen - Krásná Lípa - Kunratice - Kytlice - Labská Stráň - Lipová - Lobendava - Ludvíkovice - Malá Veleň - Malšovice - Markvartice - Merboltice - Mikulášovice - Rumburk - Růžová - Rybniště - Srbská Kamenice - Staré Křečany - Starý Šachov - Šluknov - Těchlovice - Valkeřice - Varnsdorf - Velká Bukovina - Velký Šenov - Verneřice - Veselé - Vilémov ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deutscher Verlag Der Wissenschaften
(DVW) (English: ''German Publisher of Sciences'') was a scientific publishing house in the former German Democratic Republic (GDR/). Situated in Berlin, DVW was founded as (VEB) on 1 January 1954 as the successor of the main department of "university literature" of the publisher (VWV). During the first ten years, DVW, for the most part, published mathematical and scientific literature aimed at university education. About 780 titles were introduced with a total print run of some 3.7 million books. In 1964, DVW took over parts of the programme of and also published textbooks on topics of philosophy, history and sociology. DVW was among the publishers of the (MSB). Whilst more than a third of the production was distributed into Western foreign countries, the publisher still did not make a profit due to the fixed low book prices, politically motivated so called ' (PAOs) dictated by the East German government. In 1988, with a turnaround of 8.4 million East German mark, DVW los ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
České Středohoří
The České středohoří – Central Bohemian Uplands or Central Bohemian Highlandse.g. ''The New Encyclopaedia Britannica, Volume 31'', Encyclopaedia Britannica, 1998, p. 371 – is a mountain range located in northern Bohemia in the Czech Republic. The range is about 80 km long, extending from Česká Lípa in the northeast to Louny in the southwest and from Litoměřice in the south to Děčín in the north, and is intersected by the river Elbe. The mountains, which are of volcanic origin, have distinctively sharp solitary peaks. The uplands are a Protected Landscape Area ( cs, Chráněná krajinná oblast – CHKO); consequently, construction through the area of the D8 motorway – part of European route E55 between Dresden and Prague – was very controversial. Despite this, the motorway was finally completed in December 2016. Geographical data relating to this area were used in the creation of the landscape for the military simulation video game Video games, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Most Basin
The Most Basin (also known as North Bohemian Basin; cs, Mostecká pánev, german: Nordböhmisches Becken) is a tectonic Depression (geology), depression and Geomorphological division of the Czech Republic, geomorphological mesoregion of the Czech Republic. It is named after the city of Most (city), Most. It forms the southwestern and central parts of the Ústí nad Labem Region. It is among the richest European deposits of lignite, which has been extracted here since the second half of 19th century, mostly by extensive surface mining. Geomorphology The Most Basin is a Mesoregion (geomorphology), mesoregion of the Podkrušnohorská Macroregion within the Bohemian Massif. It is further subdivided into the microregions of Žatec Basin and Chomutov-Teplice Basin. A flat landscape without peaks is typical for the Most Basin. The highest point of the territory is a contour line near Libouchec, at above sea level. There are several low hills with an elevation of 350–380 in the southw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cross-bedding
In geology, cross-bedding, also known as cross-stratification, is layering within a stratum and at an angle to the main bedding plane. The sedimentary structures which result are roughly horizontal units composed of inclined layers. The original depositional layering is tilted, such tilting not being the result of post-depositional deformation. Cross-beds or "sets" are the groups of inclined layers, which are known as cross-strata. Cross-bedding forms during deposition on the inclined surfaces of bedforms such as ripples and dunes; it indicates that the depositional environment contained a flowing medium (typically water or wind). Examples of these bedforms are ripples, dunes, anti-dunes, sand waves, hummocks, bars, and delta slopes.Collinson, J.D., Thompson, D.B., 1989, Sedimentary Structures (2nd ed): Academic Division of Unwin Hyman Ltd, Winchester, MA, XXX p. Environments in which water movement is fast enough and deep enough to develop large-scale bed forms fall into thre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weathering
Weathering is the deterioration of rocks, soils and minerals as well as wood and artificial materials through contact with water, atmospheric gases, and biological organisms. Weathering occurs ''in situ'' (on site, with little or no movement), and so is distinct from erosion, which involves the transport of rocks and minerals by agents such as water, ice, snow, wind, waves and gravity. Weathering processes are divided into ''physical'' and ''chemical weathering''. Physical weathering involves the breakdown of rocks and soils through the mechanical effects of heat, water, ice, or other agents. Chemical weathering involves the chemical reaction of water, atmospheric gases, and biologically produced chemicals with rocks and soils. Water is the principal agent behind both physical and chemical weathering, though atmospheric oxygen and carbon dioxide and the activities of biological organisms are also important. Chemical weathering by biological action is also known as biological wea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calcareous Sinter
Calcareous sinter is a freshwater calcium carbonate deposit, also known as calc-sinter. Deposits are characterised by low porosity and well-developed lamination, often forming crusts or sedimentary rock layers. Calcareous sinter should not be confused with siliceous sinter, which the term sinter more frequently refers to. It has been suggested that the term "sinter" should be restricted to siliceous spring deposits and be dropped for calcareous deposits entirely. Features Calcareous sinter is characterised by laminations of prismatic crystals growing perpendicular to the substrate; laminations are separated by thin layers of microcrystalline carbonate. Calcareous sinter is porous due to the calcareous crystals enclosing many small cavities. Macrophytes are absent, consequently porosity is very low. Exclusion of species is due either to high temperature (travertine), high pH/ ionic strength (tufa) or absence of light (speleothems). Pedley (1990) suggests the term be abandoned in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scree
Scree is a collection of broken rock fragments at the base of a cliff or other steep rocky mass that has accumulated through periodic rockfall. Landforms associated with these materials are often called talus deposits. Talus deposits typically have a concave upwards form, where the maximum inclination corresponds to the angle of repose of the mean debris particle size. The exact definition of scree in the primary literature is somewhat relaxed, and it often overlaps with both ''talus'' and ''colluvium''. The term ''scree'' comes from the Old Norse term for landslide, ''skriða'', while the term ''talus'' is a French word meaning a slope or embankment. In high-altitude arctic and subarctic regions, scree slopes and talus deposits are typically adjacent to hills and river valleys. These steep slopes usually originate from late-Pleistocene periglacial processes. Notable scree sites in Eastern North America include the Ice Caves at White Rocks National Recreation Area in southern Ve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sand
Sand is a granular material composed of finely divided mineral particles. Sand has various compositions but is defined by its grain size. Sand grains are smaller than gravel and coarser than silt. Sand can also refer to a textural class of soil or soil type; i.e., a soil containing more than 85 percent sand-sized particles by mass. The composition of sand varies, depending on the local rock sources and conditions, but the most common constituent of sand in inland continental settings and non-tropical coastal settings is silica (silicon dioxide, or SiO2), usually in the form of quartz. Calcium carbonate is the second most common type of sand, for example, aragonite, which has mostly been created, over the past 500million years, by various forms of life, like coral and shellfish. For example, it is the primary form of sand apparent in areas where reefs have dominated the ecosystem for millions of years like the Caribbean. Somewhat more rarely, sand may be composed of calciu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
