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List Of Fossiliferous Stratigraphic Units In Mauritania
This is a list of fossiliferous stratigraphic units in Mauritania. __NOTOC__ See also * Lists of fossiliferous stratigraphic units in Africa ** List of fossiliferous stratigraphic units in Mali ** List of fossiliferous stratigraphic units in Senegal ** List of fossiliferous stratigraphic units in Western Sahara * Geology of Mauritania References Further reading * P. R. Racheboeuf, R. Gourvennec, M. Deynoux and D. Brice. 2004. The Devonian of the Hodh area (Islamic Republic of Mauritania): paleontology and stratigraphy. Journal of Paleontology 78(1):98-110 {{DEFAULTSORT:Fossiliferous stratigraphic units in Mauritania Fossiliferous stratigraphic units of Africa, Mauritania Paleontology in Mauritania Geologic formations of Africa by country, Mauritania Mauritania geography-related lists, Fossiliferous stratigraphic units Africa geology-related lists, Fossil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gold Pog
Gold is a chemical element with the symbol Au (from la, aurum) and atomic number 79. This makes it one of the higher atomic number elements that occur naturally. It is a bright, slightly orange-yellow, dense, soft, malleable, and ductile metal in a pure form. Chemically, gold is a transition metal and a group 11 element. It is one of the least reactive chemical elements and is solid under standard conditions. Gold often occurs in free elemental (native state), as nuggets or grains, in rocks, veins, and alluvial deposits. It occurs in a solid solution series with the native element silver (as electrum), naturally alloyed with other metals like copper and palladium, and mineral inclusions such as within pyrite. Less commonly, it occurs in minerals as gold compounds, often with tellurium (gold tellurides). Gold is resistant to most acids, though it does dissolve in aqua regia (a mixture of nitric acid and hydrochloric acid), forming a soluble tetrachloroaurate anion. Gold is i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Fossiliferous Stratigraphic Units In Mali
This is a list of fossiliferous stratigraphic units in Mali. __NOTOC__ List of fossiliferous stratigraphic units See also * Lists of fossiliferous stratigraphic units in Africa ** List of fossiliferous stratigraphic units in Guinea ** List of fossiliferous stratigraphic units in Ivory Coast ** List of fossiliferous stratigraphic units in Mauritania ** List of fossiliferous stratigraphic units in Niger ** List of fossiliferous stratigraphic units in Senegal * Geology of Mali References Further reading * E. S. Gaffney, E. Roberts, F. Sissoko, M. L. Bouaré, L. Tapanila and M. A. O'Leary. 2007. ''Acleistochelys'', a New Side-Necked Turtle (Pelomedusoides: Bothremydidae) from the Paleocene of Mali. ''American Museum Novitates'' 3549:1-24 * E. S. Gaffney, R. T. J. Moody, and C. A. Walker. 2001. ''Azabbaremys'', a new Side-Necked Turtle (Pelomedusoides: Bothremydidae) from the Paleocene of Mali. ''American Museum Novitates'' 3320:1-16 * R. V. Hill, J. A. McCartney, E. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geologic Formations Of Africa By Country
Geology () is a branch of natural science concerned with Earth and other astronomical objects, the features or rocks of which it is composed, and the processes by which they change over time. Modern geology significantly overlaps all other Earth sciences, including hydrology, and so is treated as one major aspect of integrated Earth system science and planetary science. Geology describes the structure of the Earth on and beneath its surface, and the processes that have shaped that structure. It also provides tools to determine the relative and absolute ages of rocks found in a given location, and also to describe the histories of those rocks. By combining these tools, geologists are able to chronicle the geological history of the Earth as a whole, and also to demonstrate the age of the Earth. Geology provides the primary evidence for plate tectonics, the evolutionary history of life, and the Earth's past climates. Geologists broadly study the properties and processes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paleontology In Mauritania
Paleontology (), also spelled palaeontology or palæontology, is the scientific study of life that existed prior to, and sometimes including, the start of the Holocene epoch (roughly 11,700 years before present). It includes the study of fossils to classify organisms and study their interactions with each other and their environments (their paleoecology). Paleontological observations have been documented as far back as the 5th century BC. The science became established in the 18th century as a result of Georges Cuvier's work on comparative anatomy, and developed rapidly in the 19th century. The term itself originates from Greek (, "old, ancient"), (, (gen. ), "being, creature"), and (, "speech, thought, study"). Paleontology lies on the border between biology and geology, but differs from archaeology in that it excludes the study of anatomically modern humans. It now uses techniques drawn from a wide range of sciences, including biochemistry, mathematics, and eng ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
