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Mount Macolod
Mount Macolod (other spelling: Maculot) is a dormant stratovolcano located in the municipality of Cuenca, Batangas in the Philippines. Popular with mountain climbers and campers, it is the main tourist attraction of Cuenca. The mountain is sacred to both Christians and Anitists. Every year on Holy Week, thousands of pilgrims from nearby towns and provinces climb the mountain as a form of penance. Geography The mountain is about tall and is also located adjacent to Taal Lake. Mount Macolod and its high volcanic rock wall called ''The Rockies'' are said to be part of Taal Caldera's crater rim. Geological history Based on studies on Taal, it is believed that an ancient Taal Cone was formed by buildup of large volume dacitic pyroclastic materials more than 140,000 years ago. Several major catastrophic eruptions probably between 27,000 and 5,000 years ago destroyed this greater Taal Cone and ultimately formed the depression now known as Taal Caldera. This depression was fi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cuenca, Batangas
Cuenca, officially the Municipality of Cuenca ( tgl, Bayan ng Cuenca), is a 4th class municipality in the province of Batangas, Philippines. According to the 2020 census, it has a population of 36,235 people. Once a part of San Jose, it became an independent town under the name "Cuenca" in 1876, after the Spanish hometown of the then-Governor of Batangas that resembles its cold breeze and beautiful scenic spots. Its main tourist attraction is the mountain, Mount Macolod (Mount Maculot). The Patron of Cuenca is Saint Isidore the Laborer, the patron of farmers. A celebratory feast is held annually every May 15. Geography According to the Philippine Statistics Authority, the municipality has a land area of constituting of the total area of Batangas. Barangays Cuenca is politically subdivided into 21 barangays. In 1954, Don Juan was constituted as a barrio from the ''sitio A ''sitio'' (Spanish for "site") in the Philippines is a territorial enclave that forms part of a b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rim (craters)
The rim or edge of an impact crater is the part that extends above the height of the local surface, usually in a circular or elliptical pattern. In a more specific sense, the rim may refer to the circular or elliptical edge that represents the uppermost tip of this raised portion. If there is no raised portion, the rim simply refers to the inside edge of the curve where the flat surface meets the curve of the crater bottom. Simple craters Smaller, simple craters retain rim geometries similar to the features of many craters found on the Moon and the planet Mercury. Complex craters Large craters are those with a diameter greater than 2.3 km, and are distinguished by central uplifts within the impact zone. These larger (also called “complex”) craters can form rims up to several hundred meters in height. A process to consider when determining the exact height of a crater rim is that melt may have been pushed over the crest of the initial rim from the initial impact, ther ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Nicolas, Batangas
San Nicolas, officially the Municipality of San Nicolas ( tgl, Bayan ng San Nicolas), is a 5th class municipality in the province of Batangas, Philippines. According to the 2020 census, it has a population of 23,908 people. It is the smallest municipality in Batangas with an area of 14.37 square kilometres (5.55 square miles) of land area, which includes the southern half of Taal Volcano. History In 1955, the barrios of San Nicolas, Hipit, Bangin, Pansipit, Calangay, Sinturisan, Talang, Abelo, Balete, Bancoro, Saimsim, Maabud, Munlawin, Tambo, Calumala, Alas-as, Calawit, and Pulang-Bato, then part of the municipality of Taal, were separated and constituted into a new and separate municipality known as San Nicolas. Geography According to the Philippine Statistics Authority, the municipality has a land area of constituting of the total area of Batangas. Barangays San Nicolas is politically subdivided into 18 barangays. In 1957, the following sitios converted into indepen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Sungay
Mount Sungay, also known as Mount Gonzales, is a mountain in the province of Cavite in the Philippines. Located in eastern Tagaytay, the inactive stratovolcano is the highest point in the province of Cavite, at ."Mount Sungay elevation" Google maps. Retrieved on 2013-10-21. The slopes of the mountain are the of the San Cristobal River that flows from the mountain to |
Tagaytay Ridge
Mount Sungay, also known as Mount Gonzales, is a mountain in the province of Cavite in the Philippines. Located in eastern Tagaytay, the inactive stratovolcano is the highest point in the province of Cavite, at ."Mount Sungay elevation" Google maps. Retrieved on 2013-10-21. The slopes of the mountain are the of the San Cristobal River that flows from the mountain to |
Caldera
A caldera ( ) is a large cauldron-like hollow that forms shortly after the emptying of a magma chamber in a volcano eruption. When large volumes of magma are erupted over a short time, structural support for the rock above the magma chamber is gone. The ground surface then collapses into the emptied or partially emptied magma chamber, leaving a large depression at the surface (from one to dozens of kilometers in diameter). Although sometimes described as a Volcanic crater, crater, the feature is actually a type of sinkhole, as it is formed through subsidence and collapse rather than an explosion or impact. Compared to the thousands of volcanic eruptions that occur each century, the formation of a caldera is a rare event, occurring only a few times per century. Only seven caldera-forming collapses are known to have occurred between 1911 and 2016. More recently, a caldera collapse occurred at Kīlauea, Hawaii in 2018. Etymology The term ''caldera'' comes from Spanish language, S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanic Cone
Volcanic cones are among the simplest volcanic landforms. They are built by ejecta from a volcanic vent, piling up around the vent in the shape of a cone with a central crater. Volcanic cones are of different types, depending upon the nature and size of the fragments ejected during the eruption. Types of volcanic cones include stratocones, spatter cones, tuff cones, and cinder cones. Stratocone Stratocones are large cone-shaped volcanoes made up of lava flows, explosively erupted pyroclastic rocks, and igneous intrusives that are typically centered around a cylindrical vent. Unlike shield volcanoes, they are characterized by a steep profile and periodic, often alternating, explosive eruptions and effusive eruptions. Some have collapsed craters called calderas. The central core of a stratocone is commonly dominated by a central core of intrusive rocks that range from around to over several kilometers in diameter. This central core is surrounded by multiple generations of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ridge
A ridge or a mountain ridge is a geographical feature consisting of a chain of mountains or hills that form a continuous elevated crest for an extended distance. The sides of the ridge slope away from the narrow top on either side. The lines along the crest formed by the highest points, with the terrain dropping down on either side, are called the ridgelines. Ridges are usually termed hills or mountains as well, depending on size. Smaller ridges, especially those leaving a larger ridge, are often referred to as spurs. Types There are several main types of ridges: ;Dendritic ridge: In typical dissected plateau terrain, the stream drainage valleys will leave intervening ridges. These are by far the most common ridges. These ridges usually represent slightly more erosion resistant rock, but not always – they often remain because there were more joints where the valleys formed or other chance occurrences. This type of ridge is generally somewhat random in orientation, often ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrovolcanic Eruption
A phreatic eruption, also called a phreatic explosion, ultravulcanian eruption or steam-blast eruption, occurs when magma heats ground water or surface water. The extreme temperature of the magma (anywhere from ) causes near-instantaneous evaporation of water to steam, resulting in an explosion of steam, water, ash, rock, and volcanic bombs. At Mount St. Helens in Washington state, hundreds of steam explosions preceded the 1980 Plinian eruption of the volcano. A less intense geothermal event may result in a mud volcano. Phreatic eruptions typically include steam and rock fragments; the inclusion of liquid lava is unusual. The temperature of the fragments can range from cold to incandescent. If molten magma is included, volcanologists classify the event as a phreatomagmatic eruption. These eruptions occasionally create broad, low-relief craters called '' maars''. Phreatic explosions can be accompanied by carbon dioxide or hydrogen sulfide gas-emissions. Carbon dioxide ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taal Caldera
Taal Lake ( tl, Lawa ng Taal, ), formerly known as Bombón Lake, is a freshwater caldera lake in the province of Batangas, on the island of Luzon in the Philippines. The lake fills Taal Volcano, a large volcanic caldera formed by very large eruptions between 500,000 and 100,000 years ago. It is the country's third-largest lake, after Laguna de Bay and Lake Lanao. Volcano Island, the location of Taal Volcano's historical eruptions and responsible for the lake's sulfuric content, lies near the center of the lake. Up until the 2020 eruption of Taal Volcano there was a crater lake on Volcano Island. It was known as Yellow Lake and Main Crater Lake and contained its own small island, Vulcan Point. Vulcan Point was thought to be one of few third-order islands in the world. Protected area and management The Taal Lake basin was first declared as a national park, known as the Taal Volcano National Park, by Proclamation No. 235 on July 22, 1967, covering . Under Repu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Depression (geology)
In geology, a depression is a landform sunken or depressed below the surrounding area. Depressions form by various mechanisms. Types Erosion-related: * Blowout: a depression created by wind erosion typically in either a partially vegetated sand dune ecosystem or dry soils (such as a post-glacial loess environment). * Glacial valley: a depression carved by erosion by a glacier. * River valley: a depression carved by fluvial erosion by a river. * Area of subsidence caused by the collapse of an underlying structure, such as sinkholes in karst terrain. * Sink: an endorheic depression generally containing a persistent or intermittent (seasonal) lake, a salt flat (playa) or dry lake, or an ephemeral lake. * Panhole: a shallow depression or basin eroded into flat or gently sloping, cohesive rock.Twidale, C.R., and Bourne, J.A., 2018Rock basins (gnammas) revisited.''Géomorphologie: Relief, Processus, Environnement,'' Vol. 24, No. 2. January 2018. Retrieved 9 June 2020. Coll ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
