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Mount Pulumbato
Mount Pulong Bato (Columbato) is a monolith located in Zamboanga City at the Zamboanga Peninsula, the western tip of the island of Mindanao in the Philippines. The mountain is situated in the Upper Abong-Abong Park within the Pasonanca Natural Park, in Barangay Pasonanca, only a few kilometers away from the city's downtown section. Geology Columbato became infamous because when the Philippine Institute of Volcanology and Seismology (PHIVOLCS) confirmed the mountain is a volcano which is unknown to most people. What is unusual about the mountain is, unlike the other mountains surrounding the city, only Mt. Columbato is made from solid rock.Feliciano, Jun (2005-01-07)"City has extinct volcano". Zamboanga Sunstar. According to PHIVOLCS, the volcano is an Intrusion In geology, an igneous intrusion (or intrusive body or simply intrusion) is a body of intrusive igneous rock that forms by crystallization of magma slowly cooling below the surface of the Earth. Intrusions ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zamboanga Peninsula (geographical Region)
Zamboanga Peninsula ( tl, Tangway ng Zamboanga; cbk, Peninsula de Zamboanga; ceb, Lawis sa Zamboanga) is an administrative region in the Philippines, designated as Region IX. It consists of three provinces (Zamboanga del Norte, Zamboanga Sibugay and Zamboanga del Sur) including four cities (Dapitan, Dipolog, Pagadian, Isabela) and the highly urbanized Zamboanga City. The region was previously known as ''Western Mindanao'' before the signing of Executive Order No. 36 of 2001. The city of Zamboanga was designated as the regional center until Pagadian was designated as its new regional center, although Zamboanga City remains the region's cultural, economic, and educational center. History Ancient era During the ancient era, the Zamboanga peninsula was a vast territory home to various ethnic groups – the largest of which was the Subanen people. Later on, the southern coastal areas of the region were under the influence of the Javanese Majapahit Empire, although the empire ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pasonanca
Zamboanga City, a highly urbanized city since 22 November 1983, comprises 98 barangays, which are grouped into 13 geographic districts. The territory of Zamboanga City covers approximately 148,338.40 hectares, of which 142,089.90 (95.8%) lies on mainland Mindanao and 6,248.50 (4.2%) are on islands. In 2005, 30 barangays were classified as urban, while the remaining 68 were rural. However, due to rapid urbanization, there are now 58 urban barangays where 746,315 (86.6%) of Zamboanga City's population lives. The remaining 40 rural barangays are home to 115,484 residents, representing 13.4% of the total population. The city is divided into two legislative districts, roughly corresponding to west (1st District) and east (2nd District) coasts, for the purposes of electing members to the House of Representatives of the Philippines and the Sangguniang Panlungsod. The 1st District encompasses the geographic districts of Ayala, Baliwasan, Labuan, Santa Maria, Zamboanga Central and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holy Week
Holy Week ( la, Hebdomada Sancta or , ; grc, Ἁγία καὶ Μεγάλη Ἑβδομάς, translit=Hagia kai Megale Hebdomas, lit=Holy and Great Week) is the most sacred week in the liturgical year in Christianity. In Eastern Churches, which includes Eastern Orthodox, Eastern Catholic and Eastern Lutheran traditions, Holy Week occurs the week after Lazarus Saturday and starts on the evening of Palm Sunday. In the denominations of the Western Christianity, which includes the Roman Catholicism, Lutheranism, Moravianism, Anglicanism, Methodism and Reformed Christianity, it begins with Palm Sunday and concludes on Easter Sunday. For all Christian traditions it is a moveable observance. In Eastern Rite Churches, Holy Week starts after 40 days of Lent and two transitional days, namely Saturday of Lazarus (Lazarus Saturday) and Palm Sunday. In the Western Christian Churches, Holy Week falls on the last week of Lent or Sixth Lent Week. Holy Week begins with the commemoratio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weathering
Weathering is the deterioration of rocks, soils and minerals as well as wood and artificial materials through contact with water, atmospheric gases, and biological organisms. Weathering occurs ''in situ'' (on site, with little or no movement), and so is distinct from erosion, which involves the transport of rocks and minerals by agents such as water, ice, snow, wind, waves and gravity. Weathering processes are divided into ''physical'' and ''chemical weathering''. Physical weathering involves the breakdown of rocks and soils through the mechanical effects of heat, water, ice, or other agents. Chemical weathering involves the chemical reaction of water, atmospheric gases, and biologically produced chemicals with rocks and soils. Water is the principal agent behind both physical and chemical weathering, though atmospheric oxygen and carbon dioxide and the activities of biological organisms are also important. Chemical weathering by biological action is also known as biological wea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extrusive
Extrusive rock refers to the mode of igneous volcanic rock formation in which hot magma from inside the Earth flows out (extrudes) onto the surface as lava or explodes violently into the atmosphere to fall back as pyroclastics or tuff. In contrast, intrusive rock refers to rocks formed by magma which cools below the surface.Jain, Sreepat (2014). ''Fundamentals of Physical Geology''. New Delhi, India: Springer. . The main effect of extrusion is that the magma can cool much more quickly in the open air or under seawater, and there is little time for the growth of crystals. Sometimes, a residual portion of the matrix fails to crystallize at all, instead becoming a natural glass or obsidian. If the magma contains abundant volatile components which are released as free gas, then it may cool with large or small vesicles (bubble-shaped cavities) such as in pumice, scoria, or vesicular basalt. Other examples of extrusive rocks are rhyolite and andesite. Texture The texture of ext ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magma
Magma () is the molten or semi-molten natural material from which all igneous rocks are formed. Magma is found beneath the surface of the Earth, and evidence of magmatism has also been discovered on other terrestrial planets and some natural satellites. Besides molten rock, magma may also contain suspended crystals and gas bubbles. Magma is produced by melting of the mantle or the crust in various tectonic settings, which on Earth include subduction zones, continental rift zones, mid-ocean ridges and hotspots. Mantle and crustal melts migrate upwards through the crust where they are thought to be stored in magma chambers or trans-crustal crystal-rich mush zones. During magma's storage in the crust, its composition may be modified by fractional crystallization, contamination with crustal melts, magma mixing, and degassing. Following its ascent through the crust, magma may feed a volcano and be extruded as lava, or it may solidify underground to form an intrusion, such as a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crust (geology)
In geology, the crust is the outermost solid shell of a rocky planet, dwarf planet, or natural satellite. It is usually distinguished from the underlying mantle by its chemical makeup; however, in the case of icy satellites, it may be distinguished based on its phase (solid crust vs. liquid mantle). The crusts of Earth, Mercury, Venus, Mars, Io, the Moon and other planetary bodies formed via igneous processes and were later modified by erosion, impact cratering, volcanism, and sedimentation. Most terrestrial planets have fairly uniform crusts. Earth, however, has two distinct types: continental crust and oceanic crust. These two types have different chemical compositions and physical properties and were formed by different geological processes. Types of crust Planetary geologists divide crust into three categories based on how and when it formed. Primary crust / primordial crust This is a planet's "original" crust. It forms from solidification of a magma ocean. Towa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intrusion
In geology, an igneous intrusion (or intrusive body or simply intrusion) is a body of intrusive igneous rock that forms by crystallization of magma slowly cooling below the surface of the Earth. Intrusions have a wide variety of forms and compositions, illustrated by examples like the Palisades Sill of New York and New Jersey; the Henry Mountains of Utah; the Bushveld Igneous Complex of South Africa; Shiprock in New Mexico; the Ardnamurchan intrusion in Scotland; and the Sierra Nevada Batholith of California. Because the solid country rock into which magma intrudes is an excellent insulator, cooling of the magma is extremely slow, and intrusive igneous rock is coarse-grained (phaneritic). Intrusive igneous rocks are classified separately from extrusive igneous rocks, generally on the basis of their mineral content. The relative amounts of quartz, alkali feldspar, plagioclase, and feldspathoid is particularly important in classifying intrusive igneous rocks. Intrusions ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philippine Institute Of Volcanology And Seismology
The Philippine Institute of Volcanology and Seismology (PHIVOLCS, ; tl, Surian ng Pilipinas sa Bulkanolohiya at Sismolohiya) is a Philippine national institution dedicated to provide information on the activities of volcanoes, earthquakes, and tsunamis, as well as other specialized information and services primarily for the protection of life and property and in support of economic, productivity, and sustainable development. It is one of the service agencies of the Department of Science and Technology. PHIVOLCS monitors volcano, earthquake, and tsunami activity, and issues warnings as necessary. It is mandated to mitigate disasters that may arise from such volcanic eruptions, earthquakes, tsunamis, and other related geotectonic phenomena. History This government organization was formed after a historical merging of official functions of government institutions. One of its first predecessors is the Philippine Weather Bureau created in 1901 when meteorological, seismological a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barangay
A barangay (; abbreviated as Brgy. or Bgy.), historically referred to as barrio (abbreviated as Bo.), is the smallest administrative division in the Philippines and is the native Filipino term for a village, district, or ward. In metropolitan areas, the term often refers to an inner city neighborhood, a suburb, or a suburban neighborhood or even a borough. The word ''barangay'' originated from ''balangay'', a type of boat used by a group of Austronesian peoples when they migrated to the Philippines. Municipalities and cities in the Philippines are politically subdivided into barangays, with the exception of the municipalities of Adams in Ilocos Norte and Kalayaan in Palawan, with each containing a single barangay. Barangays are sometimes informally subdivided into smaller areas called ''purok'' ( en, "wikt:zone, zone"), or barangay zones consisting of a cluster of houses for organizational purposes, and ''sitios'', which are territorial enclaves—usually rural—far from t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zamboanga Cordillera
Zamboanga may refer to: *Zamboanga (province), a former province of the Philippines * Zamboanga City, a highly urbanized city located on Mindanao, Philippines * Zamboanga Peninsula, an administrative region in the Philippines comprising these provinces: ** Zamboanga del Norte ** Zamboanga del Sur ** Zamboanga Sibugay *Zamboanga Peninsula (landmass) Zamboanga Peninsula ( tl, Tangway ng Zamboanga; cbk, Peninsula de Zamboanga; ceb, Lawis sa Zamboanga) is an administrative region in the Philippines, designated as Region IX. It consists of three provinces (Zamboanga del Norte, Zamboanga Sib ..., a peninsula projecting westward from Mindanao * Republic of Zamboanga, a revolutionary republic that existed in 1899–1903 * ''Zamboanga'' (film), a 1937 feature film {{geodis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pasonanca Natural Park
The Pasonanca Natural Park is a protected area that preserves a major watershed in the southern Philippine island of Mindanao in the Zamboanga Peninsula. It contains the headwaters of the Tumaga River in the southern Zamboanga Cordillera mountain range that serves the water requirements of some 800,000 residents in Zamboanga City. It was named after the village of Pasonanca located in the city's northern fringes where the Pasonanca Park, a public eco-park, and the Abong-Abong Park, a pilgrimage site, can also be found. The natural park is managed as part of the Philippines' National Integrated Protected Areas System. It was initially established in 1987 as the Pasonanca Watershed Forest Reserve encompassing an initial area of declared through Proclamation No. 199 issued by President Corazon Aquino. In 1999, through Proclamation No. 132 issued by President Joseph Estrada, the park was enlarged and reclassified as a natural park. It has the largest remaining block of old growth lo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
