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Haflong Thrust
The Haflong Thrust is the most persistent of the thrusts in the 400 km long Belt of Schuppen (BoS) in the western part of Nagaland.Haflong Thrust Banglapedia The Belt of Schuppen forms the outermost fringe of the mobile belt of the – basin and forms the most prominent morphotectonic unit of the Naga Hills, [...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] |
Dauki Fault
The Dauki fault is a major fault along the southern boundary of the Shillong Plateau that may be a source of destructive seismic hazards for the adjoining areas, including northeastern Bangladesh. The fault, inferred to go through the southern margin of the Shillong Plateau, is an east–west-trending reverse fault inclined towards the north. Marking the southern margins of Shillong Plateau (which is much steeper than the northern slope at about a height of 1500 m), the prominent East-West Dauki Fault System (5–6 km wide) is the most remarkable feature of the Plateau. This fault zone forms a sharp escarpment along the southern edge of the plateau. The steep escarpment indicates vertical displacement along the Dauki Fault Zone where the Bangladesh plains subside actively. Though the Dauki Fault Zone is shown as a single fault line on the geological map of Bangladesh (1990) but the images show that it is the combination of a number of en-echelon faults trending in different d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seismic Faults Of Asia
Seismology (; from Ancient Greek σεισμός (''seismós'') meaning "earthquake" and -λογία (''-logía'') meaning "study of") is the scientific study of earthquakes and the propagation of elastic waves through the Earth or through other planet-like bodies. It also includes studies of earthquake environmental effects such as tsunamis as well as diverse seismic sources such as volcanic, tectonic, glacial, fluvial, oceanic, atmospheric, and artificial processes such as explosions. A related field that uses geology to infer information regarding past earthquakes is paleoseismology. A recording of Earth motion as a function of time is called a seismogram. A seismologist is a scientist who does research in seismology. History Scholarly interest in earthquakes can be traced back to antiquity. Early speculations on the natural causes of earthquakes were included in the writings of Thales of Miletus (c. 585 BCE), Anaximenes of Miletus (c. 550 BCE), Aristotle (c. 340 BCE), and Zhan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thrust Faults
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] |
Cachar Hills
Cachar district is an administrative district in the state of Assam in India. After independence the undivided Cachar district was split into four districts in Assam: Dima Hasao district (formerly North Cachar Hills), Cachar district alongside Hailakandi and Karimganj. Etymology The Kacharis ( Kachari kingdom) have given their name to the modern district Cachar. The Kacharis call themselves Barman in Barak valley and Dimasa in the Dima Hasao district. They were known to the Ahoms as Timisa, a corruption of the word "Dimasa". The Kacharis are allied to the Boro, Koches, Chutias, Lalungs (aka Tiwa) and Morans of the Brahmaputra valley and to the Garos and Tripuras of the southern hills. The Kacharis were perhaps the earliest inhabitants of the Brahmaputra valley and Barak valley. They are identical with the people called ‘Mech’ in Goalpara and North Bengal. History Pre-independence period It was a part of Kachari kingdom.At Dimapur, Dimasa Kachari Princes Elder Drikpat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geosynclinal
A geosyncline (originally called a geosynclinal) is an obsolete geological concept to explain orogens, which was developed in the late 19th and early 20th centuries, before the theory of plate tectonics was envisaged. Şengör (1982), p. 11 A geosyncline was described as a giant downward fold in the Earth's crust, with associated upward folds called geanticlines (or geanticlinals), that preceded the climax phase of orogenic deformation. History The geosyncline concept was first conceived by the American geologists James Hall and James Dwight Dana in the mid-19th century, during the classic studies of the Appalachian Mountains. Émile Haug further developed the geosyncline concept, and introduced it to Europe in 1900. Şengör (1982), p. 26 Eduard Suess, a leading geologist of his time, disapproved the concept of geosyncline, and in 1909 he argued against its use due to its association with outdated theories. Şengör (1982), p. 43 This did not prevent further development of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monocline
A monocline (or, rarely, a monoform) is a step-like fold in rock strata consisting of a zone of steeper dip within an otherwise horizontal or gently-dipping sequence. Formation Monoclines may be formed in several different ways (see diagram) * By differential compaction over an underlying structure, particularly a large fault at the edge of a basin due to the greater compactibility of the basin fill, the amplitude of the fold will die out gradually upwards. * By mild reactivation of an earlier extensional fault during a phase of inversion causing folding in the overlying sequence. * As a form of fault propagation fold during upward propagation of an extensional fault in basement into an overlying cover sequence. * As a form of fault propagation fold during upward propagation of a reverse fault in basement into an overlying cover sequence. Examples * Waterpocket Fold in Capitol Reef National Park, Utah *Comb Ridge in southern Utah * Grandview-Phantom Monocline in Grand Can ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Garo Hills
The Garo Hills (Pron: ˈgɑ:rəʊ) are part of the Garo-Khasi range in Meghalaya, India. They are inhabited by the Garo people. It is one of the wettest places in the world. The range is part of the Meghalaya subtropical forests ecoregion. Demographics Garo Hills was a single district of British India. The region now comprises five districts. It has a total population of 1,103,542. Tura is the largest town with a population of about 74,858 located at the foothills of often cloud covered Tura peak. The town is centrally located to other popular game and wildlife sanctuaries in the district such as the national parks of Balphakram and Nokrek, and several natural limestone caves (the Siju Cave is among the longest in Asia). These places are rich reserves of natural flora and fauna and a refuge for endangered animals. Religion Languages Society The traditional Garo female dress is a piece of cloth around the waist and a blouse or vest. The men usually wear, in addition to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overthrust
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] |
Belt Of Schuppen
Belt may refer to: Apparel * Belt (clothing), a leather or fabric band worn around the waist * Championship belt, a type of trophy used primarily in combat sports * Colored belts, such as a black belt or red belt, worn by martial arts practitioners to signify rank in the kyū ranking system Geology * A synonym for orogen (e.g. orogenic belt) * Greenstone belt * A large-scale linear or curved array of belt of igneous rocks (e.g. Transscandinavian Igneous Belt) * A large-scale linear or curved array of mineral deposits (e.g. Bolivian tin belt) * Metamorphic belt :* Paired metamorphic belts Mechanical and vehicular * Belt (mechanical), a looped strip of material used to link multiple rotating shafts * Conveyor belt, a device for transporting goods along a fixed track * Belt manlift, a device for moving people between floors in a building or grain elevator. * Seat belt, a safety device in automobiles and on the plane * Timing belt, part of an internal combustion engine * Serp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morphotectonics
Morphotectonics (from Ancient Greek: μορφή, ''morphḗ'', "form"; and τεκτονικός, ''tektonikos'', "pertaining to building"), or tectonic geomorphology, is a branch of geomorphology that studies how landforms are formed or affected by tectonic activity. Morphotectonists seek to understand the deep Earth mechanisms behind the creation of tectonic landforms by processes such as crust uplift, subsidence, faulting, or folding.Gutiérrez, Francisco; Gutiérrez, Mateo (2016). ''Landforms of the Earth''. Basel, Switzerland: Springer International Publishing. . https://doi.org/10.1007/978-3-319-26947-4 Morphotectonics relies on cross-disciplinary research, drawing from fields such as geology, seismology, physical geography, climatology, geochronology, and geodesy. This diversity creates a challenge in that successful morphotectonic studies require combining information from specialized, historically unrelated fields of study. Furthermore, this wide range of fields leads to ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
