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Otú Norte Fault
The Otú Norte or Otú-Pericos Fault ( es, Falla de Otú Norte) is an inactive sinistral thrust fault, oblique strike-slip fault in the departments of Colombia, department of Antioquia Department, Antioquia in northern Colombia. The fault has a total length of and runs along an average north-northwest to south-southeast strike (geology), strike of 346.4 ± 8, cross-cutting the northern part of the Cordillera Central (Colombia), Central Ranges of the Colombian Andes. Together with the parallel Bagre Norte Fault the fault separates the Central Ranges from its northeasternmost continuation, the Serranía de San Lucas. Etymology The fault was by Feininger et al. in 1972 named after Otú Airport in vereda Otú in Remedios, Antioquia, Remedios, Antioquia Department, Antioquia.Consorcio GSG, 2015, p.168 Description The Otú Norte Fault crosses the northern part of the Cordillera Central (Colombia), Central Ranges of the Colombian Andes. The fault strikes north-northwest to south-sou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Remedios, Antioquia
Remedios is a town and municipality A municipality is usually a single administrative division having corporate status and powers of self-government or jurisdiction as granted by national and regional laws to which it is subordinate. The term ''municipality'' may also mean the go ... in the Colombian department of Antioquia. Part of the subregion of Northeastern Antioquia. Municipalities of Antioquia Department Populated places established in 1560 {{Antioquia-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thrust Fault
A thrust fault is a break in the Earth's crust, across which older rocks are pushed above younger rocks. Thrust geometry and nomenclature Reverse faults A thrust fault is a type of reverse fault that has a dip of 45 degrees or less. If the angle of the fault plane is lower (often less than 15 degrees from the horizontal) and the displacement of the overlying block is large (often in the kilometer range) the fault is called an ''overthrust'' or ''overthrust fault''. Erosion can remove part of the overlying block, creating a ''fenster'' (or ''window'') – when the underlying block is exposed only in a relatively small area. When erosion removes most of the overlying block, leaving island-like remnants resting on the lower block, the remnants are called ''klippen'' (singular ''klippe''). Blind thrust faults If the fault plane terminates before it reaches the Earth's surface, it is referred to as a ''blind thrust'' fault. Because of the lack of surface evidence, blind thr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diorite
Diorite ( ) is an intrusive igneous rock formed by the slow cooling underground of magma (molten rock) that has a moderate content of silica and a relatively low content of alkali metals. It is intermediate in composition between low-silica (mafic) gabbro and high-silica ( felsic) granite. Diorite is found in mountain-building belts (''orogens'') on the margins of continents. It has the same composition as the fine-grained volcanic rock, andesite, which is also common in orogens. Diorite has been used since prehistoric times as decorative stone. It was used by the Akkadian Empire of Sargon of Akkad for funerary sculptures, and by many later civilizations for sculptures and building stone. Description Diorite is an intrusive igneous rock composed principally of the silicate minerals plagioclase feldspar (typically andesine), biotite, hornblende, and sometimes pyroxene. The chemical composition of diorite is intermediate, between that of mafic gabbro and felsic grani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jurassic
The Jurassic ( ) is a Geological period, geologic period and System (stratigraphy), stratigraphic system that spanned from the end of the Triassic Period million years ago (Mya) to the beginning of the Cretaceous Period, approximately Mya. The Jurassic constitutes the middle period of the Mesozoic, Mesozoic Era and is named after the Jura Mountains, where limestone strata from the period were first identified. The start of the Jurassic was marked by the major Triassic–Jurassic extinction event, associated with the eruption of the Central Atlantic magmatic province, Central Atlantic Magmatic Province. The beginning of the Toarcian Stage started around 183 million years ago and is marked by an extinction event associated with widespread Anoxic event, oceanic anoxia, ocean acidification, and elevated temperatures likely caused by the eruption of the Karoo-Ferrar, Karoo-Ferrar large igneous provinces. The end of the Jurassic, however, has no clear boundary with the Cretaceous and i ... [...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] |
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] |
Nechí
Nechi is a town and municipality in the Colombian department of Antioquia. Climate Nechí has a tropical rainforest climate A tropical rainforest climate, humid tropical climate or equatorial climate is a tropical climate sub-type usually found within 10 to 15 degrees latitude of the equator. There are some other areas at higher latitudes, such as the coast of southea ... (Af) with heavy to very heavy rainfall year-round. References Municipalities of Antioquia Department {{Antioquia-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palestina Fault
The Palestina Fault ( es, Falla de Palestina) is a regional sinistral oblique thrust fault in the departments of Antioquia, Caldas and Bolívar in central Colombia. The fault has a total length of and runs along an average north-northeast to south-southwest strike of 017.8 ± 11 along the Central Ranges of the Colombian Andes. Description The Palestina Fault extends from the Serranía de San Lucas in the department of Antioquia in the north,Buitrago et al., 2014, p. 27 to the Nevado del Ruiz volcanic zone in the south. The Otú Norte and Bagre Norte Faults splay off the Palestina Fault.Buitrago et al., 2014, p. 26 It mainly extends along the eastern slope of the Central Ranges, displacing Paleozoic crystalline metamorphic rocks and, in lesser amounts, Mesozoic plutonic rocks. The oldest rocks are mainly in the western block, which elevates a probable Miocene erosion surface whose eroded remnants are characterized by aligned flat narrow benches and spurs.Paris et al., 2000a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Otú Airport
Otú Airport ( es, Aeropuerto de Otú) is an airport located in the village of Otú and serving the town of Remedios, a municipality of the Antioquia Department in Colombia. It is also known as Alberto Jaramillo Sanchez Airport. Currently only Aerolínea de Antioquia operates from this airport, with two daily flights on Twin Otter aircraft to Enrique Olaya Herrera Airport in Medellín. Previously, the airline ACES flew between this airport and Medellin several times per day on aircraft including the Let L-410 Turbolet, Cessna 206 and Twin Otter. The airport's runway is also used as a small military base for the Air Force and National Police. The Otu VOR-DME (Ident: OTU) is located on the field. See also *Transport in Colombia *List of airports in Colombia This is a list of airports in Colombia, grouped by type and sorted by location. __TOC__ Airports Airport names shown in bold indicate the airport has scheduled service on commercial airlines. Notes * The served tow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Serranía De San Lucas
The Serranía de San Lucas is a forested massif in the Bolívar Department of northern Colombia that reaches heights of 2,600m above sea level. It is part of the Magdalena-Urabá moist forests ecoregion, with a rainforest ecology that includes large monkey and bird populations. It is a 'forest reserve' that has been recommended for protection, but has been opened to mining by the Colombian government, as the mountains have large deposits of gold, Colombian Emeralds, emeralds, nickel and Mercury (element), mercury. AngloGold Ashanti has been exploring in the area since 2004, causing tensions with local small-scale miners. The National Liberation Army (Colombia), ELN guerrilla group enforced forest protection in the area in the early 2000s, apparently to protect local hydrology. The area is still subject to fighting between drug cartels, FARC, ELN, the Black Eagles and the Colombian army. References {{DEFAULTSORT:Serrania de San Lucas Mountain ranges of Colombia Geograph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bagre Norte Fault
The Bagre Norte Fault ( es, Falla de Bagre Norte) is a sinistral oblique strike-slip fault in the departments of Antioquia and Bolívar in northern Colombia. The fault has a total length of and runs along an average north to south strike of 359 ± 14 along the Central Ranges of the Colombian Andes and the Serranía de San Lucas. Etymology The fault is named after El Bagre.Paris et al., 2000, p.29 Description The Bagre Norte Fault branches from the Palestina Fault, close to the Alicante River. The fault juxtaposes Precambrian metamorphic rocks on the east against sedimentary rocks in the west. The fault shows as a prominent topographic lineament on satellite images and aerial photographs. Prominent scarp faces west, the fault appears to displace erosion surfaces of the Central Ranges about . The strong geomorphologic expression suggests Quaternary activity. See also * List of earthquakes in Colombia * Bucaramanga-Santa Marta Fault * Romeral Fault System The Romeral F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
