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Marikina Valley Fault System
The Marikina Valley fault system, also known as the Valley fault system (VFS), is a dominantly Sinistral and dextral, right-lateral strike-slip fault system in Luzon, Philippines. It extends from Doña Remedios Trinidad, Bulacan in the north, running through the Provinces of the Philippines, provinces of Rizal (province), Rizal, the Metro Manila Cities of the Philippines, cities of Quezon City, Quezon, Marikina, Pasig, Taguig and Muntinlupa, and the provinces of Cavite and Laguna (province), Laguna, before ending in Canlubang in the south. Fault segments The fault contains two major segments: the West Valley Fault (WVF) and the East Valley Fault (EVF). ;West Valley Fault The western segment, known as the ''West Valley Fault (WVF)'', is one of the two major fault segments of the Valley Fault System, which runs through the cities of Marikina, Quezon City, Pasig, Taguig and Muntinlupa in Metro Manila and moves in a dominantly Sinistral and dextral, dextral strike-slip motion. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marikina
Marikina (), officially the City of Marikina (), is a Cities of the Philippines#Legal classification, highly urbanized city in the Metro Manila, National Capital Region of the Philippines. According to the 2020 census, it has a population of 456,159 people. Located along the eastern border of Metro Manila, Marikina is the main gateway of Metro Manila to Rizal (province), Rizal and Quezon (province), Quezon provinces through Marikina–Infanta Highway. It is bordered on the west by Quezon City, to the south by Pasig and Cainta, Rizal, Cainta, to the north by San Mateo, Rizal, San Mateo, and to the east by Antipolo, the capital of Rizal (province), Rizal province. It was founded by the Society of Jesus, Jesuits on the fertile Marikina Valley in 1630 and the area was called Jesus dela Peña (Jesus of the Rocks) and later on called Mariquina. Marikina was the provincial capital of the Manila (province), Province of Manila under the First Philippine Republic from 1898 to 1899 durin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calamba, Laguna
Calamba, officially the City of Calamba (), is a Cities of the Philippines#Legal classification, component city in the Provinces of the Philippines, province of Laguna (province), Laguna, Philippines. According to the 2020 census, it has a population of 539,671 people making it the largest city in the province. Calamba is the regional center of the Calabarzon region. It is situated south of Manila and west of Santa Cruz, Laguna, Santa Cruz. The city is known as the "Spring Resort Capital of the Philippines" because of its numerous hot spring resorts, which are mostly located in Barangays Pansol, Bucal, Bagong Kalsada, and Lingga. According to the 2020 census, Calamba has a population of 539,671 people, making it the most populous local government unit in Laguna. It is the fifth-densest city in the province with more than 2,600 people per square kilometer after San Pedro, Laguna, San Pedro, Biñan, Cabuyao, and Santa Rosa, Laguna, Santa Rosa. Based on the overall rankings of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doña Remedios Trinidad
Doña Remedios Trinidad, officially the Municipality of Doña Remedios Trinidad (), known by its acronym as DRT, is a municipality in the province of Bulacan, Philippines. According to the 2020 census, it has a population of 28,656 people, making it the least populated municipality in the province. The town was named by Philippine president Ferdinand Marcos, Sr. after Remedios Trinidad Romualdez, mother of his wife, Imelda Romualdez Marcos, whose family was from Baliuag, Bulacan. History On September 13, 1977, under martial rule, President Ferdinand Marcos issued Presidential Decree No. 1196, creating the municipality of Doña Remedios Trinidad as a personal namesake gift to his wife's family. The municipality covers seven barangays: Pulong Sampaloc and Camachile from Angat; Bayabas and Kabayunan from Norzagaray; and Talbac, Camachin and Kalawakan from San Miguel. The town of Doña Remedios Trinidad was formed out of lands culled from neighboring municipalities. Historia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tectonophysics (journal)
''Tectonophysics, The International Journal of Geotectonics and the Geology and Physics of the Interior of the Earth'' is a weekly peer-reviewed scientific journal published by Elsevier. It was established in 1964 and covers the field of tectonophysics, including kinematics, structure, composition, and dynamics of the solid Earth at all scales. Organization The editors-in-chief are Samuel Angiboust ( ENS de Lyon), Jean-Philippe Avouac (California Institute of Technology), Ramon Carbonell (Spanish National Research Council), Rob Govers (Utrecht University), Zheng Xiang Li (Curtin University), and Kelin Wang (Geological Survey of Canada). Abstracting and indexing This journal is abstracted and indexed in over fifty databases, including Current Contents, GeoRef, Inspec, Scopus and Web of Science. Notable articles According to the ''Journal Citation Reports'', ''Tectonophysics'' has a 2011 impact factor The impact factor (IF) or journal impact factor (JIF) of an academic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Luzon
Luzon ( , ) is the largest and most populous List of islands in the Philippines, island in the Philippines. Located in the northern portion of the List of islands of the Philippines, Philippine archipelago, it is the economic and political center of the nation, being home to the country's capital city, Manila, as well as Quezon City, the country's most populous city. With a population of 64 million , it contains 52.5% of the country's total population and is the List of islands by population, 4th most populous island in the world. It is the List of islands by area, 15th largest island in the world by land area. ''Luzon'' may also refer to one of the three primary Island groups of the Philippines, island groups in the country. In this usage, it includes the Luzon Mainland, the Batanes and Babuyan Islands, Babuyan groups of islands to the north, Polillo Islands to the east, and the outlying islands of Catanduanes, Marinduque and Mindoro, among others, to the south. The islands o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strike-slip Fault
In geology, a fault is a planar fracture or discontinuity in a volume of rock across which there has been significant displacement as a result of rock-mass movements. Large faults within Earth's crust result from the action of plate tectonic forces, with the largest forming the boundaries between the plates, such as the megathrust faults of subduction zones or transform faults. Energy release associated with rapid movement on active faults is the cause of most earthquakes. Faults may also displace slowly, by aseismic creep. A ''fault plane'' is the plane that represents the fracture surface of a fault. A '' fault trace'' or ''fault line'' is a place where the fault can be seen or mapped on the surface. A fault trace is also the line commonly plotted on geological maps to represent a fault. A ''fault zone'' is a cluster of parallel faults. However, the term is also used for the zone of crushed rock along a single fault. Prolonged motion along closely spaced faults can blur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sinistral And Dextral
Sinistral and dextral, in some scientific fields, are the two types of chirality ("handedness") or relative direction. The terms are derived from the Latin words for "left" (''sinister'') and "right" (''dexter''). Other disciplines use different terms (such as dextro- and laevo-rotary in chemistry, or clockwise and anticlockwise in physics) or simply use left and right (as in anatomy). Relative direction and chirality are distinct concepts. Relative direction is from the point of view of the observer; a completely symmetric object has a left side and a right side, from the observer's point of view, if the top and bottom and direction of observation are defined. Chirality, however, is observer-independent: no matter how one looks at a right-hand screw thread, it remains different from a left-hand screw thread. Therefore, a symmetric object has sinistral and dextral directions arbitrarily defined by the position of the observer, while an asymmetric object that shows chirality may ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gelasian
The Gelasian is an age in the international geologic timescale or a stage in chronostratigraphy, being the earliest or lowest subdivision of the Quaternary Period/System and Pleistocene Epoch/Series. It spans the time between 2.58 Ma (million years ago) and 1.80 Ma. It follows the Piacenzian Stage (part of the Pliocene) and is followed by the Calabrian Stage. Definition The Gelasian was introduced in the geologic timescale in 1998.Rio, D., Sprovieri, R., Castradori, D., Di Stefano, E"The Gelasian Stage (Upper Pliocene): A new unit of the global standard chronostratigraphic scale" ''Episodes'', Vol. 21, No. 1, March 1998. pp 82-87. Retrieved March 18, 2020. It is named after the Sicilian city of Gela in the south of the island. In 2009 it was moved from the Pliocene to the Pleistocene so that the geologic time scale would be more consistent with the key changes in Earth's climate, oceans, and biota that occurred 2.58 million years ago. The base of the Gelasian is defined mag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dextral
Sinistral and dextral, in some scientific fields, are the two types of chirality ("handedness") or relative direction. The terms are derived from the Latin words for "left" (''sinister'') and "right" (''dexter''). Other disciplines use different terms (such as dextro- and laevo-rotary in chemistry, or clockwise and anticlockwise in physics) or simply use left and right (as in anatomy). Relative direction and chirality are distinct concepts. Relative direction is from the point of view of the observer; a completely symmetric object has a left side and a right side, from the observer's point of view, if the top and bottom and direction of observation are defined. Chirality, however, is observer-independent: no matter how one looks at a right-hand screw thread, it remains different from a left-hand screw thread. Therefore, a symmetric object has sinistral and dextral directions arbitrarily defined by the position of the observer, while an asymmetric object that shows chirality may ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strike-slip Tectonics
Strike-slip tectonics or wrench tectonics is a type of tectonics that is dominated by lateral (horizontal) movements within the Earth's crust (and lithosphere). Where a zone of strike-slip tectonics forms the boundary between two tectonic plates, this is known as a transform or conservative plate boundary. Areas of strike-slip tectonics are characterised by particular deformation styles including: ''stepovers'', ''Riedel shears'', ''flower structures'' and ''strike-slip duplexes''. Where the displacement along a zone of strike-slip deviates from parallelism with the zone itself, the style becomes either transpressional or transtensional depending on the sense of deviation. Strike-slip tectonics is characteristic of several geological environments, including oceanic and continental transform faults, zones of oblique collision and the deforming foreland of zones of continental collision. Deformation styles Stepovers When strike-slip fault zones develop, they typically form as sev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Active Fault
An active fault is a fault that is likely to become the source of another earthquake sometime in the future. Geologists commonly consider faults to be active if there has been movement observed or evidence of seismic activity during the last 10,000 years. * Active faulting is considered to be a geologic hazard – one related to earthquakes as a cause. Effects of movement on an active fault include strong ground motion, surface faulting, tectonic deformation, landslides and rockfalls, liquefaction, tsunamis, and seiches. Quaternary faults are those active faults that have been recognized at the surface and which have evidence of movement during the Quaternary Period. Related geological disciplines for ''active-fault'' studies include geomorphology, seismology, reflection seismology, plate tectonics, geodetics and remote sensing, risk analysis, and others. Location Active faults tend to occur in the vicinity of tectonic plate boundaries, and active fault research h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sunda Plate
The Sunda plate is a minor tectonic plate straddling the equator in the Eastern Hemisphere on which the majority of Southeast Asia is located. The Sunda plate was formerly considered a part of the Eurasian plate, but the GPS measurements have confirmed its independent movement at 10 mm/yr eastward relative to Eurasia. Extent The Sunda plate includes the South China Sea, the Andaman Sea, southern parts of Vietnam, Myanmar, Laos and Thailand along with Malaysia, Singapore, Cambodia, southern Philippines, and the islands of Bali, Lombok, West Nusa Tenggara, Borneo, Sumatra, Java, and part of Sulawesi in Indonesia. The Sunda is bounded in the east by the Philippine Mobile Belt, Molucca Sea Collision Zone, Molucca Sea plate, Banda Sea plate and Timor plate; to the south and west by the Australian plate; and to the north by the Burma plate, Eurasian plate; and Yangtze plate. The Indo-Australian plate dips beneath the Sunda plate along the Sunda Trench also known as Jav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
