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Adrar Bous
Adrar Bous is a massif in the Aïr Mountains on the western edge of the Ténéré Desert, Niger. Archaeological research at Adrar Bous, conducted by J. Desmond Clark, has produced finds spanning the Late Acheulean (1.76 – 0.13 Ma) through the Neolithic (11,950 – 6,450 BP). The massif contains a number of sites where microlithic tools are present, along with faunal and human remains. Most notable are extensive remains of ritualized feasting by specialized Tenerian cattle pastoralists. Its name is written in the Tamasheq language. The massif itself has been dated to be about 487 million years old. Geology While the oldest formations in Adrar Bous date to the Precambrian period (~4600 – 541.0 ± 1.0 Ma), much of the ring-dike formation originated during the early Silurian period (443.8 ± 1.5 – 419.2 ± 3.2 Ma), likely due to the melting of the Saharan ice caps at that time. The massif is composed primarily of granite, and is host to a number of workable rocks: jasp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ténéré Desert
The Ténéré (Tuareg: Tenere, literally: "desert") is a desert region in the south central Sahara. It comprises a vast plain of sand stretching from northeastern Niger into western Chad, occupying an area of over . The Ténéré's boundaries are said to be the Aïr Mountains in the west, the Hoggar Mountains in the north, the Djado Plateau in the northeast, the Tibesti Mountains in the east, and the basin of Lake Chad in the south. The central part of the desert, the Erg du Bilma, is centred at approximately . It is the locus of the Neolithic Tenerian culture. Name The name ''Ténéré'' comes from the Tuareg language, meaning "desert", in much the same way that the Arabic word for "desert", '' Sahara'', came to be applied to the region as a whole. Climate The Ténéré has a hot desert climate (Köppen climate classification ''BWh''), typical of the large Sahara Desert. The climate is hyper-arid, extremely hot, sunny and dry year-round and there is virtually no plant life. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chalcedony
Chalcedony ( , or ) is a cryptocrystalline form of silica, composed of very fine intergrowths of quartz and moganite. These are both silica minerals, but they differ in that quartz has a trigonal crystal structure, while moganite is monoclinic. Chalcedony's standard chemical structure (based on the chemical structure of quartz) is SiO2 ( silicon dioxide). Chalcedony has a waxy luster, and may be semitransparent or translucent. It can assume a wide range of colors, but those most commonly seen are white to gray, grayish-blue or a shade of brown ranging from pale to nearly black. The color of chalcedony sold commercially is often enhanced by dyeing or heating. The name ''chalcedony'' comes from the Latin ''chalcedonius'' (alternatively spelled ''calchedonius'') and is probably derived from the town of Chalcedon in Turkey. The name appears in Pliny the Elder's '' Naturalis Historia'' as a term for a translucent kind of jaspis. Another reference to a gem by the name of ''k ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxonomy (biology)
In biology, taxonomy () is the scientific study of naming, defining ( circumscribing) and classifying groups of biological organisms based on shared characteristics. Organisms are grouped into taxa (singular: taxon) and these groups are given a taxonomic rank; groups of a given rank can be aggregated to form a more inclusive group of higher rank, thus creating a taxonomic hierarchy. The principal ranks in modern use are domain, kingdom, phylum (''division'' is sometimes used in botany in place of ''phylum''), class, order, family, genus, and species. The Swedish botanist Carl Linnaeus is regarded as the founder of the current system of taxonomy, as he developed a ranked system known as Linnaean taxonomy for categorizing organisms and binomial nomenclature for naming organisms. With advances in the theory, data and analytical technology of biological systematics, the Linnaean system has transformed into a system of modern biological classification intended to reflect the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adze
An adze (; alternative spelling: adz) is an ancient and versatile cutting tool similar to an axe but with the cutting edge perpendicular to the handle rather than parallel. Adzes have been used since the Stone Age. They are used for smoothing or carving wood in hand woodworking, and as a hoe for agriculture and horticulture. Two basic forms of an adze are the hand adze (short hoe)—a short-handled tool swung with one hand—and the foot adze (hoe)—a long-handled tool capable of powerful swings using both hands, the cutting edge usually striking at foot or shin level. A similar tool is called a mattock, which differs by having two blades, one perpendicular to the handle and one parallel. History Africa The adze is depicted in ancient Egyptian art from the Old Kingdom onward. Originally the adze blades were made of stone, but already in the Predynastic Period copper adzes had all but replaced those made of flint. stone blades were fastened to the handle by tying and earl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kiffian Culture
The Kiffian culture is a prehistoric industry, or domain, that existed between approximately 8,000 BC and 6,000 BC in the Sahara Desert, during the African humid period referred to as the Neolithic Subpluvial. Human remains from this culture were found in 2000 AD at a site known as Gobero, located in Niger in the Ténéré Desert. The site is known as the largest and earliest burial place of Stone Age people in the Sahara desert. Characteristics The Kiffians were skilled hunters. Bones of many large savannah animals that were discovered in the same area suggest that they lived on the shores of a lake that was present during the Holocene Wet Phase, a period when the Sahara desert was verdant and wet. The Kiffian people were tall, standing over six feet in height. A craniometric analysis by Sereno et al. suggests that this early Holocene population was related to the Late Pleistocene Iberomaurusians and early Holocene Capsians of the Maghreb, as well as mid-Holocene Mechta gro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pastoral Neolithic
The Pastoral Neolithic (5000 BP - 1200 BP) refers to a period in Africa's prehistory, specifically Tanzania and Kenya, marking the beginning of food production, livestock domestication, and pottery use in the region following the Later Stone Age. The exact dates of this time period remain inexact, but early Pastoral Neolithic sites support the beginning of herding by 5000 BP. In contrast to the Neolithic in other parts of the world, which saw the development of farming societies, the first form of African food production was nomadic pastoralism, or ways of life centered on the herding and management of livestock. The shift from hunting to food production relied on livestock that had been domesticated outside of East Africa, especially North Africa. This period marks the emergence of the forms of pastoralism that are still present. The reliance on livestock herding marks the deviation from hunting-gathering but precedes major agricultural development. The exact movement tendencies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adrar Bous
Adrar Bous is a massif in the Aïr Mountains on the western edge of the Ténéré Desert, Niger. Archaeological research at Adrar Bous, conducted by J. Desmond Clark, has produced finds spanning the Late Acheulean (1.76 – 0.13 Ma) through the Neolithic (11,950 – 6,450 BP). The massif contains a number of sites where microlithic tools are present, along with faunal and human remains. Most notable are extensive remains of ritualized feasting by specialized Tenerian cattle pastoralists. Its name is written in the Tamasheq language. The massif itself has been dated to be about 487 million years old. Geology While the oldest formations in Adrar Bous date to the Precambrian period (~4600 – 541.0 ± 1.0 Ma), much of the ring-dike formation originated during the early Silurian period (443.8 ± 1.5 – 419.2 ± 3.2 Ma), likely due to the melting of the Saharan ice caps at that time. The massif is composed primarily of granite, and is host to a number of workable rocks: jasp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Before Present
Before Present (BP) years, or "years before present", is a time scale used mainly in archaeology, geology and other scientific disciplines to specify when events occurred relative to the origin of practical radiocarbon dating in the 1950s. Because the "present" time changes, standard practice is to use 1 January 1950 as the commencement date (epoch) of the age scale. The abbreviation "BP" has been interpreted retrospectively as "Before Physics", which refers to the time before nuclear weapons testing artificially altered the proportion of the carbon isotopes in the atmosphere, which scientists must now account for. In a convention that is not always observed, many sources restrict the use of BP dates to those produced with radiocarbon dating; the alternative notation RCYBP stands for the explicit "radio carbon years before present". Usage The BP scale is sometimes used for dates established by means other than radiocarbon dating, such as stratigraphy. This usage differs from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tumulus
A tumulus (plural tumuli) is a mound of earth and stones raised over a grave or graves. Tumuli are also known as barrows, burial mounds or ''kurgans'', and may be found throughout much of the world. A cairn, which is a mound of stones built for various purposes, may also originally have been a tumulus. Tumuli are often categorised according to their external apparent shape. In this respect, a long barrow is a long tumulus, usually constructed on top of several burials, such as passage graves. A round barrow is a round tumulus, also commonly constructed on top of burials. The internal structure and architecture of both long and round barrows has a broad range; the categorization only refers to the external apparent shape. The method of may involve a dolmen, a cist, a mortuary enclosure, a mortuary house, or a chamber tomb. Examples of barrows include Duggleby Howe and Maeshowe. Etymology The word ''tumulus'' is Latin for 'mound' or 'small hill', which is derived fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potsherds
This page is a glossary of archaeology, the study of the human past from material remains. A B C D E F G H I K L M N O P Q R S T U V W X Y Z See also * Outline of archaeology * Table of years in archaeology * Glossary of history References Bibliography * * * * * * * External links About.com Archaeology Glossary {{Glossaries of science and engineering Archaeology Archaeology or archeology is the scientific study of human activity through the recovery and analysis of material culture. The archaeological record consists of artifacts, architecture ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Technocomplex
:''Not to be confused with industrial archaeology, the archaeology of (modern) industrial sites.'' In the archaeology of the Stone Age, an industry or technocomplex is a typological classification of stone tools. An industry consists of a number of lithic assemblages, typically including a range of different types of tools, that are grouped together on the basis of shared technological or morphological characteristics. For example, the Acheulean industry includes hand-axes, cleavers, scrapers and other tools with different forms, but which were all manufactured by the symmetrical reduction of a bifacial core producing large flakes. Industries are usually named after a type site where these characteristics were first observed (e.g. the Mousterian industry is named after the site of Le Moustier). By contrast, Neolithic axeheads from the Langdale axe industry were recognised as a type well before the centre at Great Langdale was identified by finds of debitage and other r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dotted Wavy Line And Wavy Line Pottery
Dotted wavy line and wavy line pottery has been discovered in archaeological sites across North and Eastern Africa. These pieces are some of the oldest examples of pottery, made by hunter-fisher-gatherers between five and ten thousand years ago. The pieces of pottery are characterized by their namesake solid wavy lines and dotted wavy lines. Background In the later Holocene, fishers and hunter-gatherers in Northern Africa created pottery that was characterized by decorative incised and dotted wavy lines. These pieces were created between ten thousand and five thousand years ago, making them some of the oldest known pieces of African pottery. These people lived during the African humid period in semi-permanent and permanent settlements around the numerous bodies of water that existed in the now-arid regions of North and East Africa. These settlements are characterized by the discovery of wavy line pottery found in conjunction with barbed bone points, which are adaptations for an "a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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