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Maba Man
Maba Man () is a pre-modern hominin whose remains were discovered in 1958 in caves near the town called Maba, near Shaoguan city in the north part of Guangdong province, China.''Wu R. K.'' et ''Pang R.-C.'' Fossil human skull of early Paleoanthropic stage found at Mapa, Shaoquan, Kwantung Province. Vertebrata PalAsiatica, 1959, t.3, №1, pp.176-182. Characteristics Farmers found an ancient Maba cranium in 1958, near a Chinese village named Maba. Maba Man was labeled an intermediate in form between ''Homo erectus'' and '' H. sapiens''; the remains are referred by many authorities to archaic ''H. sapiens'' or to an Asian extension of ''H. heidelbergensis''. As the scientists did more research on the Maba cranium, they found that the fossils consisted of a skull cap and parts of the right upper face, with parts of the nose also still attached. The scientists saw a connection with ''Homo erectus'' because the brow ridges were pronounced, forming an arch over each eye and the bon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maba , in Madhya Pradesh, India
{{Disambig, geo ...
Maba or MABA may refer to: * ''Maba'', a plant genus now included in ''Diospyros'' * Maba, Shaoguan (马坝镇), town in Qujiang District, Shaoguan, Guangdong, China * Maba, Xuyi County (马坝镇), town in Xuyi County, Jiangsu, China * Maba, Indonesia, town in North Maluku * Maba language (Indonesia), an Austronesian language of Indonesia * Maba language, a Nilo-Saharan language of Chad and Sudan * Maba people, an ethnic group of Chad * Maba Man, a prehistoric hominid from Maba, Guangdong, China * Maba, Thung Khao Luang, an administrative division in Thung Khao Luang District, Thailand * 3-Aminobenzoic acid, an organic compound * Mandi Bamora railway station Mandi Bamora railway station is located in Sagar district of Madhya Pradesh and serves Mandi Bamora town. Its code is "MABA". Passenger, Express, and Superfast trains halt here. Trains The following trains halt at Mandi Bamora railway statio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Late Pleistocene
The Late Pleistocene is an unofficial age in the international geologic timescale in chronostratigraphy, also known as Upper Pleistocene from a stratigraphic perspective. It is intended to be the fourth division of the Pleistocene Epoch within the ongoing Quaternary Period. It is currently defined as the time between c. 129,000 and c. 11,700 years ago. The Late Pleistocene equates to the proposed Tarantian Age of the geologic time scale, preceded by the officially ratified Chibanian (formerly known as Middle Pleistocene) and succeeded by the officially ratified Greenlandian. The estimated beginning of the Tarantian is the start of the Eemian interglacial period ( Marine Isotope Stage 5). It is held to end with the termination of the Younger Dryas, some 11,700 years ago when the Holocene Epoch began. The term Upper Pleistocene is currently in use as a provisional or "quasi-formal" designation by the International Union of Geological Sciences (IUGS). Although the three olde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snub-nosed Monkey
__NOTOC__ Snub-nosed monkeys are a group of Old World monkeys and make up the entirety of the genus ''Rhinopithecus''. The genus is rare and not fully researched. Some taxonomists group snub-nosed monkeys together with the genus '' Pygathrix''. Snub-nosed monkeys live in Asia, with a range covering southern China (especially Tibet, Sichuan, Yunnan, and Guizhou) extending into the northern parts of Myanmar and Vietnam. These monkeys are named for the short stump of a nose on their round faces, with nostrils arranged forward. They have relatively multicolored and long fur, particularly at the shoulders and backs. They grow to a length of with a tail of . Snub-nosed monkeys inhabit mountain forests up to elevations of more than . In the winter, they move into the deeply secluded regions. Higher elevation areas are more remote and difficult for humans to access and utilize and other studies have found less deforestation, more reforestation and afforestation, less range contraction, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macaque
The macaques () constitute a genus (''Macaca'') of gregarious Old World monkeys of the subfamily Cercopithecinae. The 23 species of macaques inhabit ranges throughout Asia, North Africa, and (in one instance) Gibraltar. Macaques are principally frugivorous (preferring fruit), although their diet also includes seeds, leaves, flowers, and tree bark. Some species, such as the crab-eating macaque, subsist on a diet of invertebrates and occasionally small vertebrates. On average, southern pig-tailed macaques in Malaysia eat about 70 large rats each per year. All macaque social groups are matriarchal, arranged around dominant females. Macaques are found in a variety of habitats throughout the Asian continent and are highly adaptable. Certain species have learned to live with humans and have become invasive in some human-settled environments, such as the island of Mauritius and Silver Springs State Park in Florida. Macaques can be a threat to wildlife conservation as well as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chopper (archaeology)
Archaeologists define a chopper as a pebble tool with an irregular cutting edge formed through the removal of flakes from one side of a stone. Choppers are crude forms of stone tool and are found in industries as early as the Lower Palaeolithic from around 2.5 million years ago. These earliest known specimens were found in the Olduvai Gorge in Tanzania by Louis Leakey in the 1930s. The name Oldowan was given to the tools after the site in which they were excavated. These types of tools were used an estimated time range of 2.5 to 1.2 million years ago. Formation To create this tool, one would have to use a hammerstone to chip away flakes on the stone to create a side of the stone with a very sharp edge, allowing for the cutting and hacking of an object. This is a unique type of lithic reduction, as only a single side of the stone is retouched to produce the cutting surface of the stone. The side that does not do the cutting is left unscathed, an unusual practice. These old ins ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quartzite
Quartzite is a hard, non- foliated metamorphic rock which was originally pure quartz sandstone.Essentials of Geology, 3rd Edition, Stephen Marshak, p 182 Sandstone is converted into quartzite through heating and pressure usually related to tectonic compression within orogenic belts. Pure quartzite is usually white to grey, though quartzites often occur in various shades of pink and red due to varying amounts of hematite. Other colors, such as yellow, green, blue and orange, are due to other minerals. The term ''quartzite'' is also sometimes used for very hard but unmetamorphosed sandstones that are composed of quartz grains thoroughly cemented with additional quartz. Such sedimentary rock has come to be described as orthoquartzite to distinguish it from metamorphic quartzite, which is sometimes called metaquartzite to emphasize its metamorphic origins. Quartzite is very resistant to chemical weathering and often forms ridges and resistant hilltops. The nearly pure silica co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lithology
The lithology of a rock unit is a description of its physical characteristics visible at outcrop, in hand or core samples, or with low magnification microscopy. Physical characteristics include colour, texture, grain size, and composition. Lithology may refer to either a detailed description of these characteristics, or a summary of the gross physical character of a rock. Examples of lithologies in the second sense include sandstone, slate, basalt, or limestone. Lithology is the basis of subdividing rock sequences into individual lithostratigraphic units for the purposes of mapping and correlation between areas. In certain applications, such as site investigations, lithology is described using a standard terminology such as in the European geotechnical standard Eurocode 7. Rock type The naming of a lithology is based on the rock type. The three major rock types are igneous, sedimentary, and metamorphic. Igneous rocks are formed directly from magma, which is a mixture of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bulb Of Applied Force
In lithic analysis, a subdivision of archaeology, a bulb of applied force (also known as a bulb of percussion or simply bulb of force) is a defining characteristic of a lithic flake. Bulb of applied force was first correctly described by Sir John Evans, the cofounder of prehistoric archeology. However, bulb of percussion was coined scientifically by W.J. Sollas. When a flake is detached from its parent core, a portion of the Hertzian cone of force caused by the detachment blow is detached with it, leaving a distinctive bulb on the flake and a corresponding flake scar on the core. In the case of a unidirectional core, the bulb of applied force is produced by an initiated crack formed at the point of contact, which begins producing the Hertzian cone. The outward pressure increases causing the crack to curve away from the core and the bulb formation. The bulb of applied force forms below the striking platform as a slight bulge. If the flake is completely crushed the bulb will not be vi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gravel
Gravel is a loose aggregation of rock fragments. Gravel occurs naturally throughout the world as a result of sedimentary and erosive geologic processes; it is also produced in large quantities commercially as crushed stone. Gravel is classified by particle size range and includes size classes from granule- to boulder-sized fragments. In the Udden-Wentworth scale gravel is categorized into granular gravel () and pebble gravel (). ISO 14688 grades gravels as fine, medium, and coarse, with ranges 2–6.3 mm to 20–63 mm. One cubic metre of gravel typically weighs about 1,800 kg (or a cubic yard weighs about 3,000 lb). Gravel is an important commercial product, with a number of applications. Almost half of all gravel production is used as aggregate for concrete. Much of the rest is used for road construction, either in the road base or as the road surface (with or without asphalt or other binders.) Naturally occurring porous gravel deposits have a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stone Tool
A stone tool is, in the most general sense, any tool made either partially or entirely out of stone. Although stone tool-dependent societies and cultures still exist today, most stone tools are associated with prehistoric (particularly Stone Age) cultures that have become extinct. Archaeology, Archaeologists often study such prehistoric societies, and refer to the study of stone tools as lithic analysis. Ethnoarchaeology has been a valuable research field in order to further the understanding and cultural implications of stone tool use and manufacture. Stone has been used to make a wide variety of different tools throughout history, including arrowheads, spearheads, hand axes, and Quern-stone, querns. Stone tools may be made of either ground stone or Lithic reduction, knapped stone, the latter fashioned by a flintknapper. Knapped stone tools are made from cryptocrystalline materials such as chert or flint, radiolarite, chalcedony, obsidian, basalt, and quartzite via a process ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shaoguan Shiziyan 2013
Shaoguan (; Hakka: Seukoan) is a prefecture-level city in northern Guangdong Province ( Yuebei), South China, bordering Hunan to the northwest and Jiangxi to the northeast. It is home to the mummified remains of the sixth Zen Buddhist patriarch Huineng. Its built-up (or metro) area made up of Zhenjiang, Wujiang and Qujiang urban conurbated districts was home to 1,028,460 inhabitants as of the 2020 census. History Shaozhou was a prefecture under the Tang and Song. In 1589, Matteo Ricci relocated his mission housethe first ever Jesuit mission in mainland Chinato Shaoguan after a fallout with the authorities in Zhaoqing. He remained in Shaoguan for a few years, eventually benefiting from Shaoguan's location on the important north-south travel route to establish connections with traveling dignitaries that allowed him to move north, to Nanchang, Nanjing, and Beijing.''De Christiana expeditione apud Sinas'' During World War II the city, then called Kukong, was the temporary capi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uranium
Uranium is a chemical element with the symbol U and atomic number 92. It is a silvery-grey metal in the actinide series of the periodic table. A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons. Uranium is weakly radioactive because all isotopes of uranium are unstable; the half-lives of its naturally occurring isotopes range between 159,200 years and 4.5 billion years. The most common isotopes in natural uranium are uranium-238 (which has 146 neutrons and accounts for over 99% of uranium on Earth) and uranium-235 (which has 143 neutrons). Uranium has the highest atomic weight of the primordially occurring elements. Its density is about 70% higher than that of lead, and slightly lower than that of gold or tungsten. It occurs naturally in low concentrations of a few parts per million in soil, rock and water, and is commercially extracted from uranium-bearing minerals such as uraninite. In nature, uranium is found as uranium-238 (99.2739 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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