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Hadar, Ethiopia
Hadar or Hadar Formation (also spelled ''Qad daqar'', ''Qadaqar''; Afar language, Afar "white [''qidi''] stream [''daqar'']")Jon Kalb ''Adventures in the Bone Trade'' (New York: Copernicus Books, 2001), p. 83 is a paleontological fossil site located in Mille (woreda), Mille district, Administrative Zone 1 (Afar), Administrative Zone 1 of the Afar Region, Ethiopia, 15 km upstream (west) of the Transport in Ethiopia#Roads, A1 road's bridge across the Awash River (Adayitu kebele). It is situated on the southern edge of the Afar Triangle (part of East Africa's Great Rift Valley, Ethiopia, Great Rift Valley), along the left banks of the Awash River, between two minor tributaries, the eponymous Kada Hadar and the Gona, Ethiopia, Kada Gona. In 1972, Taieb organized a small exploratory reconnaissance of the Afar region to investigate more paleontological finds there. After six weeks of exploration, the party focused on the Hadar site. The site has yielded some of the most well-kno ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maurice Taieb
Maurice Taieb (22 July 1935 – 23 July 2021) was a Tunisian French geologist and paleoanthropologist. He discovered the Hadar,_Ethiopia#Archeological_findsite, Hadar formation, recognized its potential importance to paleoanthropology and founded the International Afar Research Expedition (IARE). This enabled co-director Donald Johanson to discover an early hominin fossil, the 3.2-million-year-old Australopithecine Lucy (Australopithecus), Lucy in the Awash River, Awash Valley of Ethiopia's Afar Depression. Personal life Taieb was born in Tunisia in 1935 to a Tunisian father and a French mother. Jon Kalb: ''Adventures in the Bone Trade,'' p. 35. He travelled through the North African outback with his uncle, a merchant who traded with the Bedouin on the outskirts of Tunis. Taieb received his doctorate from the University of Paris VI in 1974. His thesis was on the geology of the Awash Riverbasin. Taieb died on 23 July 2021, and was survived by his wife Ingrid and their two sons, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mille (woreda)
Mille is a woreda of Awsi Rasu (Administrative Zone 1) within Afar Region, Ethiopia. It is named for the Mille River, a tributary of the Awash River. Mille is bordered on the south by the Administrative Zone 3, on the southwest by Administrative Zone 5, on the west by the Amhara Region, on the northwest by Chifra, on the northeast by Dubti, and on the southeast by the Somali Region. Towns in Mille include Mille and Eli Wuha. The highest point in this district is Mount Gabillema, at 1,459 meters, a dormant volcano in the southeastern part. Roads in this woreda include the feeder road between Chifra and Mille, which is 105 kilometers in length; it was constructed in two segments between February 1999 and February 2001 by SUR Construction. Important local landmarks include the Yangudi Rassa National Park, which covers the southeast corner of Mille, but not Mount Gabillema; and the archeological sites at Hadar and Dikika where specimens of ''Australopithecus afarensis'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gona, Ethiopia
Gona is a paleoanthropological research area in Ethiopia's Afar Region. Gona is primarily known for its archaeological sites and discoveries of hominin fossils from the Late Miocene, Early Pliocene and Early Pleistocene. Fossils of ''Ardipithecus'' and ''Homo erectus'' were discovered there''.'' Two of the most significant finds are an '' Ardipithecus ramidus'' postcranial skeleton and an essentially complete ''Homo erectus'' pelvis. Historically, Gona had the oldest documented Oldowan artifact assemblages. Archaeologists have since found older examples of the Oldowan at other sites. Still, Gona's Oldowan assemblages have been essential to the archaeological understanding of the Oldowan. Gona's Acheulean archaeological sites have helped us understand the beginnings of the Acheulean Industry. History Paleoanthropological interest in the locality that would eventually become the Gona Paleoanthropological Research Project area began after a French geologist, Maurice Taieb, under ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pliocene
The Pliocene ( ; also Pleiocene) is the epoch (geology), epoch in the geologic time scale that extends from 5.33 to 2.58See the 2014 version of the ICS geologic time scale million years ago (Ma). It is the second and most recent epoch of the Neogene Period in the Cenozoic, Cenozoic Era. The Pliocene follows the Miocene Epoch and is followed by the Pleistocene Epoch. Prior to the 2009 revision of the geologic time scale, which placed the four most recent major glaciations entirely within the Pleistocene, the Pliocene also included the Gelasian Stage, which lasted from 2.59 to 1.81 Ma, and is now included in the Pleistocene. As with other older geologic periods, the Stratum, geological strata that define the start and end are well-identified but the exact dates of the start a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hadar Formation
Hadar or Hadar Formation (also spelled ''Qad daqar'', ''Qadaqar''; Afar "white 'qidi''stream 'daqar'') Jon Kalb ''Adventures in the Bone Trade'' (New York: Copernicus Books, 2001), p. 83 is a paleontological fossil site located in Mille district, Administrative Zone 1 of the Afar Region, Ethiopia, 15 km upstream (west) of the A1 road's bridge across the Awash River (Adayitu kebele). It is situated on the southern edge of the Afar Triangle (part of East Africa's Great Rift Valley), along the left banks of the Awash River, between two minor tributaries, the eponymous Kada Hadar and the Kada Gona. In 1972, Taieb organized a small exploratory reconnaissance of the Afar region to investigate more paleontological finds there. After six weeks of exploration, the party focused on the Hadar site. The site has yielded some of the most well-known hominin fossils, including "Lucy". These hominin fossils range in age from approximately 3.42 to 2.90 million years ago. These finds ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sedimentary Rock
Sedimentary rocks are types of rock (geology), rock formed by the cementation (geology), cementation of sediments—i.e. particles made of minerals (geological detritus) or organic matter (biological detritus)—that have been accumulated or deposited at Earth's surface. Sedimentation is any process that causes these particles to settle in place. Geological detritus originates from weathering and erosion of existing rocks, or from the solidification of molten lava blobs erupted by volcanoes. The geological detritus is transported to the place of deposition by water, wind, ice or Mass wasting, mass movement, which are called agents of denudation. Biological detritus is formed by bodies and parts (mainly shells) of dead aquatic organisms, as well as their fecal mass, suspended in water and slowly piling up on the floor of water bodies (marine snow). Sedimentation may also occur when dissolved minerals precipitate from aqueous solution, water solution. The sedimentary rock cover of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Afar Research Expedition
International is an adjective (also used as a noun) meaning "between nations". International may also refer to: Music Albums * ''International'' (Kevin Michael album), 2011 * ''International'' (New Order album), 2002 * ''International'' (The Three Degrees album), 1975 *''International'', 2018 album by L'Algérino Songs * The Internationale, the left-wing anthem * "International" (Chase & Status song), 2014 * "International", by Adventures in Stereo from ''Monomania'', 2000 * "International", by Brass Construction from ''Renegades'', 1984 * "International", by Thomas Leer from ''The Scale of Ten'', 1985 * "International", by Kevin Michael from ''International'' (Kevin Michael album), 2011 * "International", by McGuinness Flint from ''McGuinness Flint'', 1970 * "International", by Orchestral Manoeuvres in the Dark from '' Dazzle Ships'', 1983 * "International (Serious)", by Estelle from '' All of Me'', 2012 Politics * Internationalism (politics) * Political international, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bati (woreda)
Bati ( Oromo: ''Baati''; Amharic: ባቲ) is a district in the Oromia Zone of the Amhara region of Ethiopia. Bati is bordered on the south by Dawa Harewa, on the southeast by the Argobba special woreda, on the west and north by the Debub Wollo Zone, and on the east by the Afar Region. Towns in this woreda include its administrative center, the market town of Bati. The towns of Degan and Gerba were administratively part of Bati before the 2007 census but was then transferred to Kalu woreda. A notable landmark of this woreda is the Aneba forest. These 53 hectares of woodland are one of the few remaining stands of '' Afrocarpus gracilior'', an indigenous tree locally known as ''Zegba'', in Ethiopia. At least one tree in this woodland, known as ''Aliyaw'', is 700 years old. Demographics Based on the 2007 national census conducted by the Central Statistical Agency of Ethiopia (CSA), this woreda has a total population of 107,387, of whom 53,731 are men and 53,656 women; 16,710 or 15. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antilopinae
Antilopinae is a subfamily of even-toed ungulates in the family Bovidae. The members of tribe Antilopini are often referred to as true antelopes, and include the gazelles, blackbucks, springboks, gerenuks, dibatags, and Central Asian gazelles. True antelopes occur in much of Africa and Asia, with the highest concentration of species occurring in East Africa in Sudan, Eritrea, Ethiopia, Somalia, Kenya, and Tanzania. The saiga (tribe Saigini) inhabits Central and Western Asia, mostly in regions from the Tibetan Plateau and north of the Indian Subcontinent. The dwarf antelope species of tribe Neotragini live entirely in sub-Saharan Africa. Classification Family Bovidae * Subfamily Antilopinae ** Tribe Antilopini *** Genus '' Ammodorcas'' **** Dibatag ''Ammodorcas clarkei'' *** Genus'' Antidorcas'' **** Springbok ''Antidorcas marsupialis'' *** Genus '' Antilope'' **** Blackbuck ''Antilope cervicapra'' *** Genus '' Eudorcas'' **** Mongalla gazelle ''Eudorcas albonotata'' **** ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanic Tuff
Tuff is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption. Following ejection and deposition, the ash is lithified into a solid rock. Rock that contains greater than 75% ash is considered tuff, while rock containing 25% to 75% ash is described as ''tuffaceous'' (for example, ''tuffaceous sandstone''). A pyroclastic rock containing 25–75% volcanic bombs or volcanic blocks is called tuff breccia. Tuff composed of sandy volcanic material can be referred to as volcanic sandstone. Tuff is a relatively soft rock, so it has been used for construction since ancient times. Because it is common in Italy, the Romans used it often for construction. The Rapa Nui people used it to make most of the ''moai'' statues on Easter Island. Tuff can be classified as either igneous or sedimentary rock. It is usually studied in the context of igneous petrology, although it is sometimes described using sedimentological terms. Tuff is often erroneously called tufa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sandstones
Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains, cemented together by another mineral. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar, because they are the most resistant minerals to the weathering processes at the Earth's surface. Like uncemented sand, sandstone may be imparted any color by impurities within the minerals, but the most common colors are tan, brown, yellow, red, grey, pink, white, and black. Because sandstone beds can form highly visible cliffs and other topographic features, certain colors of sandstone have become strongly identified with certain regions, such as the red rock deserts of Arches National Park and other areas of the American Southwest. Rock formations composed of sandstone usually allow the percolation of water and other fluids and are porous enough to store large quantities, making them valuable aquifers and petro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siltstone
Siltstone, also known as aleurolite, is a clastic sedimentary rock that is composed mostly of silt. It is a form of mudrock with a low clay mineral content, which can be distinguished from shale by its lack of fissility. Although its permeability and porosity is relatively low, siltstone is sometimes a tight gas reservoir rock, an unconventional reservoir for natural gas that requires hydraulic fracturing for economic gas production. Siltstone was prized in ancient Egypt for manufacturing statuary and cosmetic palettes. The siltstone quarried at Wadi Hammamat was a hard, fine-grained siltstone that resisted flaking and was almost ideal for such uses. Description There is not complete agreement on the definition of siltstone. One definition is that siltstone is mudrock (clastic sedimentary rock containing at least 50% clay and silt) in which at least 2/3 of the clay and silt fraction is composed of silt-sized particles. Silt is defined as grains 2–62 μm in diam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
