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Semporna Peninsula
The Semporna Peninsula ( ms, Semenanjung Semporna) is a peninsula in Tawau Division, Sabah, Malaysia. It consists of coastal areas and numerous isolated hills and mountains rising to over . The Peninsula is also considered as a volcanic arc of the region with several volcanoes active during the Holocene period is located on the area. Geology The formation of the peninsula involved process of intrusive and volcanic activity with the area consists of erosion surfaces within of sea level, out of which rise hills of the more resistant rocks and upon which volcanic landforms have been superimposed. At the beginning of the Miocene period, much of the area was submerged and widespread volcanic activity of rhyolite with andesite and basalt types occurred during the period, followed by another three periods of activity. Early Pliocene gave intrusive hornblende diorite (particularly to eastern Timbun Mata), associated with volcanic breccia (eastern coast Sabah of Gaya and Boheydulang I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tawau Division
Tawau Division ( ms, Bahagian Tawau) is one of the five administrative sub-divisions of Sabah, Malaysia. It occupies a total of 14,905 square kilometres or 20% of Sabah's territory. The main towns include the capital of Tawau, Lahad Datu, Kunak and Semporna. Tawau division has 26% of Sabah's total population, with the main indigenous groups consisting of the Bajau, Suluk, Ida'an, Tidong, Cocos, Murut, Lun Bawang/Lun Dayeh as well as a minority of mixed ethnic groups. Large numbers of both legal and illegal immigrants from Indonesia such as the Buginese and Torajans, from East Timor the Timorese, from the Philippines the Tausūg and Visayans as well South and West Asian immigrants such as Pakistanis, Indians and Arabs can be found in this area. As with the rest of Sabah, the division also has large numbers of ethnic Chinese. Tawau port is the third largest port after Kota Kinabalu and Sandakan. The port serves as a major timber and agricultural products export centre. There a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Basalt
Basalt (; ) is an aphanite, aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron (mafic lava) exposed at or very near the planetary surface, surface of a terrestrial planet, rocky planet or natural satellite, moon. More than 90% of all volcanic rock on Earth is basalt. Rapid-cooling, fine-grained basalt is chemically equivalent to slow-cooling, coarse-grained gabbro. The eruption of basalt lava is observed by geologists at about 20 volcanoes per year. Basalt is also an important rock type on other planetary bodies in the Solar System. For example, the bulk of the plains of volcanism on Venus, Venus, which cover ~80% of the surface, are basaltic; the lunar mare, lunar maria are plains of flood-basaltic lava flows; and basalt is a common rock on the surface of Mars. Molten basalt lava has a low viscosity due to its relatively low silica content (between 45% and 52%), resulting in rapidly moving lava flo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quaternary
The Quaternary ( ) is the current and most recent of the three periods of the Cenozoic Era in the geologic time scale of the International Commission on Stratigraphy (ICS). It follows the Neogene Period and spans from 2.58 million years ago to the present. The Quaternary Period is divided into two epochs: the Pleistocene (2.58 million years ago to 11.7 thousand years ago) and the Holocene (11.7 thousand years ago to today, although a third epoch, the Anthropocene, has been proposed but is not yet officially recognised by the ICS). The Quaternary Period is typically defined by the cyclic growth and decay of continental ice sheets related to the Milankovitch cycles and the associated climate and environmental changes that they caused. Research history In 1759 Giovanni Arduino proposed that the geological strata of northern Italy could be divided into four successive formations or "orders" ( it, quattro ordini). The term "quaternary" was introduced by Jules Desnoye ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Maria, Malaysia
Mount Maria ( ms, Gunung Maria) is a volcanic cone mountain located at the Tawau Division of Sabah, Malaysia. It reaches a height of approximately . Geology The mountain is formed through the late Pleistocene volcanisms which contributed to the prominent topographic features of the Semporna Peninsula and its surrounding areas. Together with Mount Lucia in the Tawau volcanic field, the mountains are made up of Pleistocene dacites. The surrounding mountain peak has been reported with the potential of generating renewable energy such as geothermal power. History Since 1979, it has been a part of Tawau Hills Park. Jungle trekking activities are served by the park where the forest trail also leads to Mount Lucia and Mount Magdalena. See also * List of volcanoes in Malaysia References Tawau Division Mountains of Sabah Mount Maria Mount Maria Mount Maria is a mountain of the Hornby Mountains, adjacent to Port Howard, on West Falkland island (Falkland Islands). ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Late Pliocene
Late may refer to: * LATE, an acronym which could stand for: ** Limbic-predominant age-related TDP-43 encephalopathy, a proposed form of dementia ** Local-authority trading enterprise, a New Zealand business law ** Local average treatment effect, a concept in econometrics Music * ''Late'' (album), a 2000 album by The 77s * Late!, a pseudonym used by Dave Grohl on his ''Pocketwatch'' album * Late (rapper), an underground rapper from Wolverhampton * "Late" (song), a song by Blue Angel * "Late", a song by Kanye West from ''Late Registration'' Other * Late (Tonga), an uninhabited volcanic island southwest of Vavau in the kingdom of Tonga * "Late" (''The Handmaid's Tale''), a television episode * LaTe, Oy Laivateollisuus Ab, a defunct shipbuilding company * Late may refer to a person who is Dead See also * * * ''Lates'', a genus of fish in the lates perch family * Later (other) * Tardiness * Tardiness (scheduling) In scheduling, tardiness is a measure of a delay in exe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tawau
Tawau (, Jawi: , ), formerly known as Tawao, is the capital of the Tawau District in Sabah, Malaysia. It is the third-largest city in Sabah, after Kota Kinabalu and Sandakan. It is located on the Semporna Peninsula in the southeast coast of the state in the administrative centre of Tawau Division, which is bordered by the Sulu Sea to the east, the Celebes Sea to the south at Cowie BayCowie Bay in the early 19th century was known as Kalabakong Bay. It is also known as Sibuco Bay. and shares a border with North Kalimantan, Indonesia. The town had an estimated population , of 113,809, while the whole municipality area had a population of 397,673 (including 47,466 in Kalabakan, subsequently split off to form a separate district).Above the official figures of the 2010 Census, there are a large number of illegal immigrants from Indonesia and the Philippines.(Goodlet, page 248 and page 299) The municipal area had a population of 372,615 at the 2020 Census. Before the founding of Tawa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Lucia
Mount Lucia ( ms, Gunung Lucia) is a volcanic cone mountain located at the Tawau Division of Sabah, Malaysia. It reaches a height of approximately . Geology The mountain is formed through the late Pleistocene volcanisms. Together with Mount Maria in the Tawau volcanic field, the mountains are made up of Pleistocene dacite. History Since 1979, it has been a part of Tawau Hills Park. Jungle trekking activities are served by the park where the forest trail also leads to Mount Magdalena and Mount Maria Mount Maria is a mountain of the Hornby Mountains, adjacent to Port Howard, on West Falkland island (Falkland Islands). It reaches a height of approximately . As one of the highest mountains of the Falklands, it experienced some glaciation. The .... See also * List of volcanoes in Malaysia References Lucia Protected areas of Sabah Hiking trails in Malaysia Volcanoes of Malaysia Extinct volcanoes of Asia {{Sabah-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dolerite
Diabase (), also called dolerite () or microgabbro, is a mafic, holocrystalline, subvolcanic rock equivalent to volcanic basalt or plutonic gabbro. Diabase dikes and sills are typically shallow intrusive bodies and often exhibit fine-grained to aphanitic chilled margins which may contain tachylite (dark mafic glass). ''Diabase'' is the preferred name in North America, while ''dolerite'' is the preferred name in the rest of the English-speaking world, where sometimes the name ''diabase'' refers to altered dolerites and basalts. Some geologists prefer to avoid confusion by using the name ''microgabbro''. The name ''diabase'' comes from the French ', and ultimately from the Greek - meaning "act of crossing over, transition". Petrography Diabase normally has a fine but visible texture of euhedral lath-shaped plagioclase crystals (62%) set in a finer matrix of clinopyroxene, typically augite (20–29%), with minor olivine (3% up to 12% in olivine diabase), magnetite (2%), and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agglomerate
Agglomerate (from the Latin ''agglomerare'' meaning "to form into a ball") is a coarse accumulation of large blocks of volcanic material that contains at least 75% bombs. Volcanic bombs differ from volcanic blocks in that their shape records fluidal surfaces: they may, for example, have ropy, cauliform, scoriaceous, folded, spindle, spatter, ribbon, ragged, or amoeboid shapes. Globular masses of lava may have been shot from the crater at a time when partly molten lava was exposed, and was frequently shattered by sudden outbursts of steam. These bombs were viscous at the moment of ejection and by rotation in the air acquired their shape. They are commonly in diameter, but specimens as large as have been observed. There is less variety in their composition at any one volcanic centre than in the case of the lithic blocks, and their composition indicates the type of magma being erupted. Agglomerates are typically found near volcanic vents and within volcanic conduits, where they m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanic Breccia
Breccia () is a rock composed of large angular broken fragments of minerals or rocks cemented together by a fine-grained matrix. The word has its origins in the Italian language, in which it means "rubble". A breccia may have a variety of different origins, as indicated by the named types including sedimentary breccia, tectonic breccia, igneous breccia, impact breccia, and hydrothermal breccia. A megabreccia is a breccia composed of very large rock fragments, sometimes kilometers across, which can be formed by landslides, impact events, or caldera collapse. Types Breccia is composed of coarse rock fragments held together by cement or a fine-grained matrix. Like conglomerate, breccia contains at least 30 percent of gravel-sized particles (particles over 2mm in size), but it is distinguished from conglomerate because the rock fragments have sharp edges that have not been worn down. These indicate that the gravel was deposited very close to its source area, since otherwise th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Timbun Mata
Timbun Mata Island ( ms, Pulau Timbun Mata) is the largest island on the south side of Darvel Bay, in Semporna, Sabah, Malaysia. It is over long and almost wide at the widest point. The island is mountainous and was formerly (pre-2000) densely wooded. Mt. Tannabalu, the highest point at , is a conical, extinct volcano located at the centre of the island. A secondary peak, Mt. Sedungal, at the east end of the island rises to . The south side of the island is only separated from the mainland by a shallow channel known as the Trusan Sigalong. It is located at with an area of . History The island has been inhabited since before records were kept. There are several villages on the island which have been there for at least several hundred years, Mantandak (in the west), Lakai Lakai (north), Dap Dap (northeast) and Kubor (east). In addition there are newer, illegal settlements which have sprung up on the southeastern portion of the island. The island was declared a forest reserve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diorite
Diorite ( ) is an intrusive igneous rock formed by the slow cooling underground of magma (molten rock) that has a moderate content of silica and a relatively low content of alkali metals. It is intermediate in composition between low-silica (mafic) gabbro and high-silica ( felsic) granite. Diorite is found in mountain-building belts (''orogens'') on the margins of continents. It has the same composition as the fine-grained volcanic rock, andesite, which is also common in orogens. Diorite has been used since prehistoric times as decorative stone. It was used by the Akkadian Empire of Sargon of Akkad for funerary sculptures, and by many later civilizations for sculptures and building stone. Description Diorite is an intrusive igneous rock composed principally of the silicate minerals plagioclase feldspar (typically andesine), biotite, hornblende, and sometimes pyroxene. The chemical composition of diorite is intermediate, between that of mafic gabbro and felsic grani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
