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Mount Malepunyo
Malepunyo Range (also known as Malipunyo Range,Philippine Commission"Annual Reports of the War Department, 1906, Vol. 9" pg. 384. Washington Government Printing Office, 1907. Mount Malepunyo, Mount Malipunyo, Mount Manabu or Mount Malarayat) is an extinct volcano located in Luzon. The mountain range is located between the provinces of Batangas, Laguna and Quezon. It is popular among mountaineers, and has three interconnected destinations: Mt. Malepunyo, the highest; Bagwis Peak (also known as ''Mt. Susong-Cambing''); and Mount Dalaga (also known as ''Manabu Peak''). History The Malepunyo Range is an inactive volcano with its caldera facing south along the vicinity between Lipa City and San Antonio, Quezon. By the 1990s the Malepunyo Mountain Range has been erroneously tagged as ''Malarayat Mountain Range'' due to the famous country club located at its western slope named after the Malarayat Hill. Mount Malepunyo is its highest peak located at Barangay Talisay, Lipa City stand ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tagaytay
Tagaytay (), officially the City of Tagaytay (), is a component city in the province of Cavite, Philippines. According to the 2020 census, it has a population of 85,330 people. It is one of the country's most popular destinations for domestic tourism because of its scenery and cooler climate provided by its elevation. Tagaytay overlooks Taal Lake in Batangas and provides views of Taal Volcano Island in the middle of the lake through various vantage points situated in the city. The name ''Tagaytay'' is derived from the Tagalog words '' tagaytay'' or '' taytay'', which mean "mountain ridge" or "low mountain range", in reference to the Tagaytay Ridge on which the city sits. History Philippine Revolution During the Philippine Revolution of 1896, the ridges and forests of Tagaytay became a sanctuary for revolutionaries including those from nearby provinces. The passage to and from towns via Tagaytay added the word "mananagaytay" to the native's vocabulary. It means "to traver ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bagwis Cliff Of Malepunyo Range
Bagwis is a fictional Filipino comics character created by Elwood Perez as comic series in ''Tempo'', a daily tabloid published by Manila Bulletin Publishing Corporation. The comic ended in 1992. Bagwis is a warrior angel modeled after the Archangel Michael and has superhuman strength. He fights evil with a sword and shield that came from the heavens. His name comes from the Tagalog word "Bagwis" which means "wing". In 1989, the comic serial was adapted for the film ''Bagwis'' with Chuck Perez portraying the title character. Other uses An unrelated fictional character also called Bagwis appears in the telefantasya ''Mulawin'' broadcast by GMA Network, and also in its spin-off, ''Encantadia''. The character was portrayed by Zoren Legaspi. Bagwis is a popular name in the Philippines for sighthounds such as the Greyhound or Whippet The Whippet is a British breed of dog of sighthound type. It closely resembles the Greyhound and the smaller Italian Greyhound, and is inter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tuff Ring
Phreatomagmatic eruptions are volcanic eruptions resulting from interaction between magma and water. They differ from exclusively magmatic eruptions and phreatic eruptions. Unlike phreatic eruptions, the products of phreatomagmatic eruptions contain juvenile (magmatic) clasts.Heiken, G. & Wohletz, K. 1985. Volcanic Ash. University of California Press, Berkeley It is common for a large explosive eruption to have magmatic and phreatomagmatic components. Mechanisms Several competing theories exist as to the exact mechanism of ash formation. The most common is the theory of explosive thermal contraction of particles under rapid cooling from contact with water. In many cases the water is supplied by the sea, such as in the Surtsey eruption. In other cases the water may be present in a lake or caldera-lake, as at Santorini, where the phreatomagmatic component of the Minoan eruption was a result of both a lake and later the sea. There have also been examples of interaction between magm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhyolite
Rhyolite ( ) is the most silica-rich of volcanic rocks. It is generally glassy or fine-grained (aphanitic) in texture (geology), texture, but may be porphyritic, containing larger mineral crystals (phenocrysts) in an otherwise fine-grained matrix (geology), groundmass. The mineral assemblage is predominantly quartz, sanidine, and plagioclase. It is the extrusive equivalent of granite. Its high silica content makes rhyolitic magma extremely viscosity, viscous. This favors explosive eruptions over effusive eruptions, so this type of magma is more often erupted as pyroclastic rock than as lava flows. Rhyolitic ash-flow tuffs are among the most voluminous of continental igneous rock formations. Rhyolitic tuff has been used extensively for construction. Obsidian, which is rhyolitic volcanic glass, has been used for tools from prehistoric times to the present day because it can be shaped to an extremely sharp edge. Rhyolitic pumice finds use as an abrasive, in concrete, and as a soil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trachydacite
Trachyte () is an extrusive igneous rock composed mostly of alkali feldspar. It is usually light-colored and aphanitic (fine-grained), with minor amounts of mafic minerals, and is formed by the rapid cooling of lava (or shallow intrusions) enriched with silica and alkali metals. It is the volcanic equivalent of syenite. Trachyte is common wherever alkali magma is erupted, including in late stages of ocean island volcanismMacDonald 1983, pp. 51–52 and in continental rift valleys, above mantle plumes,Philpotts and Ague 2009, pp. 390–394 and in areas of back-arc extension. Trachyte has also been found in Gale crater on Mars. Trachyte has been used as decorative building stone and was extensively used as dimension stone in the Roman Empire and the Republic of Venice. Chemical composition Trachyte has a silica content of 60 to 65% and an alkali oxide content of over 7%. This gives it less SiO2 than rhyolite and more (Na2O plus K2O) than dacite. These chemical differences are c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trachyandesite
Trachyandesite is an extrusive igneous rock with a composition between trachyte and andesite. It has little or no free quartz, but is dominated by sodic plagioclase and alkali feldspar. It is formed from the cooling of lava enriched in alkali metals and with an intermediate content of silica. The term ''trachyandesite'' had begun to fall into disfavor by 1985 but was revived to describe extrusive igneous rocks falling into the S3 field of the TAS classification. These are divided into sodium-rich benmoreite and potassium-rich latite. Trachyandesitic magma can produce explosive Plinian eruptions, such as happened at Tambora in 1815. The Eyjafjallajökull 2010 eruption (VEI-4), which disrupted European and transatlantic air travel from 15-20 April 2010, for some time was dominated by trachyandesite. Petrology Trachyandesite is characterized by a silica content near 58% and a total alkali oxide content near 9%. This places trachyandesite in the S3 field of the TAS diagr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lahar
A lahar (, from ) is a violent type of mudflow or debris flow composed of a slurry of Pyroclastic rock, pyroclastic material, rocky debris and water. The material flows down from a volcano, typically along a valley, river valley. Lahars are often extremely destructive and deadly; they can flow tens of metres per second, they have been known to be up to deep, and large flows tend to destroy any structures in their path. Notable lahars include those at Mount Pinatubo in the Philippines and Nevado del Ruiz in Colombia, the latter of which killed more than 20,000 people in the Armero tragedy. Etymology The word ''lahar'' is of Javanese language, Javanese origin. Berend George Escher introduced it as a geological term in 1922. Description The word ''lahar'' is a general term for a flowing mixture of water and pyroclastic debris. It does not refer to a particular rheology or sediment concentration. Lahars can occur as normal stream flows (sediment concentration of less than 30%), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyroclastic Flow
A pyroclastic flow (also known as a pyroclastic density current or a pyroclastic cloud) is a fast-moving current of hot gas and volcanic matter (collectively known as tephra) that flows along the ground away from a volcano at average speeds of but is capable of reaching speeds up to . The gases and tephra can reach temperatures of about . Pyroclastic flows are the deadliest of all volcanic hazards and are produced as a result of certain explosive eruptions; they normally touch the ground and hurtle downhill or spread laterally under gravity. Their speed depends upon the density of the current, the volcanic output rate, and the gradient of the slope. Origin of term The word ''pyroclast'' is derived from the Greek (''pýr''), meaning "fire", and (''klastós''), meaning "broken in pieces". A name for pyroclastic flows that glow red in the dark is (French, "burning cloud"); this was notably used to describe the disastrous 1902 eruption of Mount Pelée on Martinique, a Frenc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stratovolcano
A stratovolcano, also known as a composite volcano, is a typically conical volcano built up by many alternating layers (strata) of hardened lava and tephra. Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile with a summit crater and explosive eruptions. Some have collapsed summit craters called calderas. The lava flowing from stratovolcanoes typically cools and solidifies before spreading far, due to high viscosity. The magma forming this lava is often felsic, having high to intermediate levels of silica (as in rhyolite, dacite, or andesite), with lesser amounts of less viscous mafic magma. Extensive felsic lava flows are uncommon, but can travel as far as 8 km (5 mi). The term ''composite volcano'' is used because strata are usually mixed and uneven instead of neat layers. They are among the most common types of volcanoes; more than 700 stratovolcanoes have erupted lava during the Holocene Epoch (the last 11,700 years), and many ol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laguna De Bay
Laguna de Bay ( Spanish for "Lagoon/Lake of Bay"; , ), also known as Laguna Lake and alternatively spelled "Laguna de Bae", is the largest lake in the Philippines. It is located southeast of Metro Manila, between the provinces of Laguna to the south and Rizal to the north. A freshwater lake, it has a surface area of 911–949 km2 (352–366 sq mi), with an average depth of about and an elevation of about one meter above sea level. The lake is shaped like a crow's foot, with two peninsulas jutting out from the northern shore and filling the large volcanic Laguna Caldera. In the middle of the lake is the large island of Talim. The lake is one of the primary sources of freshwater fish in the country. Its water drains to Manila Bay via the Pasig River. Environmental issues such as water quality problems created by population pressure and industrialization, invasive species and overfishing are of concern for the lake, hurting its economic importance to the country. As po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Makiling
Mount Makiling (also spelled Maquiling) is an inactive stratovolcano located in the provinces of Laguna and Batangas on the island of Luzon in the Philippines. The mountain rises to an elevation of above mean sea level and is the highest feature of the Laguna Volcanic Field. The volcano has no recorded historic eruption but volcanism is still evident through geothermal features like mud spring and hot springs. South of the mountain is the Makiling–Banahaw Geothermal Plant. The Philippine Institute of Volcanology and Seismology (PHIVOLCS) classifies the volcano as " Inactive". Mount Makiling is a state-owned forest reserve administered by the University of the Philippines Los Baños. Prior to its transfer to the university, the mountain was the first national park of the Philippines. Mount Makiling National Park was established on February 23, 1933, by Proclamation No. 552. However, it was decommissioned as a national park on June 20, 1963, by Republic Act No. 3523 when i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malepunyo Range Relief Map
Malepunyo Range (also known as Malipunyo Range,Philippine Commission"Annual Reports of the War Department, 1906, Vol. 9" pg. 384. Washington Government Printing Office, 1907. Mount Malepunyo, Mount Malipunyo, Mount Manabu or Mount Malarayat) is an extinct volcano located in Luzon. The mountain range is located between the Provinces of the Philippines, provinces of Batangas, Laguna (province), Laguna and Quezon province, Quezon. It is popular among mountaineers, and has three interconnected destinations: Mt. Malepunyo, the highest; Bagwis Peak (also known as ''Mt. Susong-Cambing''); and Mount Dalaga (also known as ''Manabu Peak''). History The Malepunyo Range is an inactive volcano with its caldera facing south along the vicinity between Lipa, Batangas, Lipa City and San Antonio, Quezon. By the 1990s the Malepunyo Mountain Range has been erroneously tagged as ''Malarayat Mountain Range'' due to the famous country club located at its western slope named after the Malarayat Hill. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
