|
Pico 31 De Março
Pico 31 de Março, or Pico Trinta e Um de Março in full (), also known as Pico Phelps, is a mountain on the Brazil–Venezuela border. At above sea level, it is Brazil's second highest mountain. It is part of the Cerro de la Neblina, Neblina massif, and the latter's summit Pico da Neblina, Brazil's highest summit, is only away. Pico 31 de Março can be considered a secondary summit of Pico da Neblina. Therefore, it is usually climbed by expeditions primarily aiming to reach the other peak. The two are linked by a mountain pass, col that can be easily traversed in a short trek of about an hour. Discovery and naming The peak was first discovered in 1954 by the Basset Maguire's expedition to the north side of the mountain massif. It was later climbed during the first attempt to climb Pico da Neblina, by a Brazilian army expedition. It received its name (meaning "March 31 Peak" in Portuguese) as a self-homage by the Military dictatorship, military regime instated in Brazil a few mon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brazil
Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area and the seventh most populous. Its capital is Brasília, and its most populous city is São Paulo. The federation is composed of the union of the 26 States of Brazil, states and the Federal District (Brazil), Federal District. It is the largest country to have Portuguese language, Portuguese as an List of territorial entities where Portuguese is an official language, official language and the only one in the Americas; one of the most Multiculturalism, multicultural and ethnically diverse nations, due to over a century of mass Immigration to Brazil, immigration from around the world; and the most populous Catholic Church by country, Roman Catholic-majority country. Bounded by the Atlantic Ocean on the east, Brazil has a Coastline of Brazi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parima Tapirapecó National Park
Parima Tapirapecó National Park (''Parque Nacional Parima Tapirapecó'') is a Venezuelan national park in the southern state of Amazonas. Location The Parima Tapirapecó National Park is in the Atabapo and Río Negro municipalities. It is the 5th largest national park in the world and the 2nd largest in South America. Established in August 1991, it has an area of 38,290 km2 (15,000 mile²), and is the largest national park in Venezuela. The area protects the headwaters of the Orinoco, likewise the natural space and culture of the Yanomami ethnic group.Huber, Otto (2001), "Conservation and environmental concerns in the Venezuelan Amazon", ''Biodiversity and Conservation'' 10(10), 1627-1643. p1634 Environment The park is in the Guayanan Highlands moist forests ecoregion. "The main types of vegetation in Parima-Tapirapecó National Park are evergreen lowland forests and submontane and montane forests. There are also large areas of mostly secondary savannas in the south ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yanomami
The Yanomami, also spelled Yąnomamö or Yanomama, are a group of approximately 35,000 indigenous people who live in some 200–250 villages in the Amazon rainforest on the border between Venezuela and Brazil. Etymology The ethnonym ''Yanomami'' was produced by anthropologists on the basis of the word , which, in the expression , signifies "human beings." This expression is opposed to the categories (game animals) and (invisible or nameless beings), but also (enemy, stranger, non-Indian). According to ethnologist : History The first report of the Yanomami to the Northern world is from 1654, when an El Salvadorian expedition under Apolinar Diez de la Fuente visited some Ye'kuana people living on the Padamo River. Diez wrote: From approximately 1630 to 1720, the other river-based indigenous societies who lived in the same region were wiped out or reduced as a result of slave-hunting expeditions by the conquistadors and bandeirantes. How this affected the Yanomami is unk ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metamorphic Rock
Metamorphic rocks arise from the transformation of existing rock to new types of rock in a process called metamorphism. The original rock (protolith) is subjected to temperatures greater than and, often, elevated pressure of or more, causing profound physical or chemical changes. During this process, the rock remains mostly in the solid state, but gradually recrystallizes to a new texture or mineral composition. The protolith may be an igneous, sedimentary, or existing metamorphic rock. Metamorphic rocks make up a large part of the Earth's crust and form 12% of the Earth's land surface. They are classified by their protolith, their chemical and mineral makeup, and their texture. They may be formed simply by being deeply buried beneath the Earth's surface, where they are subject to high temperatures and the great pressure of the rock layers above. They can also form from tectonic processes such as continental collisions, which cause horizontal pressure, friction, and distorti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Precambrian
The Precambrian (or Pre-Cambrian, sometimes abbreviated pꞒ, or Cryptozoic) is the earliest part of Earth's history, set before the current Phanerozoic Eon. The Precambrian is so named because it preceded the Cambrian, the first period of the Phanerozoic Eon, which is named after Cambria, the Latinised name for Wales, where rocks from this age were first studied. The Precambrian accounts for 88% of the Earth's geologic time. The Precambrian is an informal unit of geologic time, subdivided into three eons ( Hadean, Archean, Proterozoic) of the geologic time scale. It spans from the formation of Earth about 4.6 billion years ago ( Ga) to the beginning of the Cambrian Period, about million years ago ( Ma), when hard-shelled creatures first appeared in abundance. Overview Relatively little is known about the Precambrian, despite it making up roughly seven-eighths of the Earth's history, and what is known has largely been discovered from the 1960s onwards. The Precambrian fossil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sandstone
Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar (both silicates) because they are the most resistant minerals to weathering processes at the Earth's surface. Like uncemented sand, sandstone may be any color due to impurities within the minerals, but the most common colors are tan, brown, yellow, red, grey, pink, white, and black. Since sandstone beds often form highly visible cliffs and other topographic features, certain colors of sandstone have been strongly identified with certain regions. Rock formations that are primarily composed of sandstone usually allow the percolation of water and other fluids and are porous enough to store large quantities, making them valuable aquifers and petroleum reservoirs. Quartz-bearing sandstone can be changed into quartzite through metamorphism, usually related to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tor (rock Formation)
A tor, which is also known by geomorphologists as either a castle koppie or kopje, is a large, free-standing rock outcrop that rises abruptly from the surrounding smooth and gentle slopes of a rounded hill summit or ridge crest. In the South West of England, the term is commonly also used for the hills themselves – particularly the high points of Dartmoor in Devon and Bodmin Moor in Cornwall.Ehlen, J. (2004) ''Tor'' in Goudie, A., ed., pp. 1054-1056. ''Encyclopedia of Geomorphology.'' Routledge. London, England. Etymology Although English topographical names often have a Celtic etymology, the Oxford English Dictionary lists no cognates to the Old English word in either the Breton or Cornish languages (the Scottish Gaelic ''tòrr'' is thought to derive from the Old English word). It is therefore accepted that the English word ''Tor'' derives from the Old Welsh word ''tẁrr'' or ''twr'', meaning a cluster or heap. Formation Tors are landforms created by the erosion and weath ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glaciated
A glacier (; ) is a persistent body of dense ice that is constantly moving under its own weight. A glacier forms where the accumulation of snow exceeds its ablation over many years, often centuries. It acquires distinguishing features, such as crevasses and seracs, as it slowly flows and deforms under stresses induced by its weight. As it moves, it abrades rock and debris from its substrate to create landforms such as cirques, moraines, or fjords. Although a glacier may flow into a body of water, it forms only on land and is distinct from the much thinner sea ice and lake ice that form on the surface of bodies of water. On Earth, 99% of glacial ice is contained within vast ice sheets (also known as "continental glaciers") in the polar regions, but glaciers may be found in mountain ranges on every continent other than the Australian mainland, including Oceania's high-latitude oceanic island countries such as New Zealand. Between latitudes 35°N and 35°S, glaciers occur only in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gravitational Field
In physics, a gravitational field is a model used to explain the influences that a massive body extends into the space around itself, producing a force on another massive body. Thus, a gravitational field is used to explain gravitational phenomena, and is measured in newtons per kilogram (N/kg). Equivalently, it is measured in meters per second squared (m/s2). In its original concept, gravity was a force between point masses. Following Isaac Newton, Pierre-Simon Laplace attempted to model gravity as some kind of radiation field or fluid, and since the 19th century, explanations for gravity have usually been taught in terms of a field model, rather than a point attraction. In a field model, rather than two particles attracting each other, the particles distort spacetime via their mass, and this distortion is what is perceived and measured as a "force". In such a model one states that matter moves in certain ways in response to the curvature of spacetime, and that there is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earth
Earth is the third planet from the Sun and the only astronomical object known to harbor life. While large volumes of water can be found throughout the Solar System, only Earth sustains liquid surface water. About 71% of Earth's surface is made up of the ocean, dwarfing Earth's polar ice, lakes, and rivers. The remaining 29% of Earth's surface is land, consisting of continents and islands. Earth's surface layer is formed of several slowly moving tectonic plates, which interact to produce mountain ranges, volcanoes, and earthquakes. Earth's liquid outer core generates the magnetic field that shapes the magnetosphere of the Earth, deflecting destructive solar winds. The atmosphere of the Earth consists mostly of nitrogen and oxygen. Greenhouse gases in the atmosphere like carbon dioxide (CO2) trap a part of the energy from the Sun close to the surface. Water vapor is widely present in the atmosphere and forms clouds that cover most of the planet. More solar e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geoid
The geoid () is the shape that the ocean surface would take under the influence of the gravity of Earth, including gravitational attraction and Earth's rotation, if other influences such as winds and tides were absent. This surface is extended through the continents (such as with very narrow hypothetical canals). According to Carl Friedrich Gauss, Gauss, who first described it, it is the "mathematical figure of the Earth", a smooth but irregular surface whose shape results from the uneven distribution of mass within and on the surface of Earth. It can be known only through extensive gravitational measurements and calculations. Despite being an important concept for almost 200 years in the history of geodesy and geophysics, it has been defined to high precision only since advances in satellite geodesy in the late 20th century. All points on a geoid surface have the same geopotential (the sum of gravitational energy, gravitational potential energy and centrifugal force, centrifug ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brazilian Institute Of Geography And Statistics
The Brazilian Institute of Geography and Statistics ( pt, Instituto Brasileiro de Geografia e Estatística; IBGE) is the agency responsible for official collection of statistical, geographic, cartographic, geodetic and environmental information in Brazil. IBGE performs a decennial national census; questionnaires account for information such as age, household income, literacy, education, occupation and hygiene levels. IBGE is a public institute created in 1936 under the name ''National Institute of Statistics''. Its founder and chief proponent was statistician Mário Augusto Teixeira de Freitas. The current name dates from 1938. Its headquarters are located in Rio de Janeiro, and its current president is Eduardo Rios Neto. It was made a federal agency by Decree-Law No. 161 on February 13, 1967, and is linked to the Ministry of the Economy, inside the Secretariat of Planning, Budget and Management. Structure IBGE has a network of national research and dissemination components ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.svg "Click for more on -> Brazil")
Saunders_Quarry-1.jpg "Click for more on -> Sandstone")
.svg "Click for more on -> Earth")
