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Geology (from Ancient Greek γῆ () 'earth' and λoγία (-logía) 'study of, discourse') is a branch of natural science concerned with the Earth and other astronomical objects, the rocks of which they are composed, and the processes by which they change over time. Modern geology significantly overlaps all other Earth sciences, including hydrology. It is integrated with 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. Geologists study the mineralogical composition of rocks in order to get insight into their history of formation. Geology determines the relative ages of rocks found at a given location; geochemistry (a branch of geology) determines their absolute ages. By combining various petrological, crystallographic, and paleontological tools, geologists are able to chronicle the geological history of the Earth as a whole. One aspect is to demonstrate the age of the Earth. Geology provides evidence for plate tectonics, the evolutionary history of life, and the Earth's past climates.

Geologists broadly study the properties and processes of Earth and other terrestrial planets. Geologists use a wide variety of methods to understand the Earth's structure and evolution, including fieldwork, rock description, geophysical techniques, chemical analysis, physical experiments, and numerical modelling. In practical terms, geology is important for mineral and hydrocarbon exploration and exploitation, evaluating water resources, understanding natural hazards, remediating environmental problems, and providing insights into past climate change. Geology is a major academic discipline, and it is central to geological engineering and plays an important role in geotechnical engineering. (Full article...)

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Vital articles to understand Geology.

Mudpots lined up above a volcanic fissure at Hverarönd, Iceland

A mudpot, or mud pool, is a type of acidic hot spring, or fumarole, with limited water. It usually takes the form of a pool of bubbling mud, as a result of the acid and microorganisms decomposing surrounding rock into clay and mud. (Full article...)

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Featured biography articles in Geology

Şengör in 2021

Ali Mehmet Celâl Şengör (Turkish: [ˈali ˈmehmet ˈdʒeɫal ˈʃænɟœɾ]; born 24 March 1955) is a Turkish geologist. He is retired from the faculty at Istanbul Technical University, Department of Geological Engineering.

Şengör is a (foreign) member of the American Philosophical Society, the United States National Academy of Sciences, the Russian Academy of Sciences and the Serbian Academy of Sciences and Arts. He is a foreign member of the Russian Academy of Science. He is a recipient of Gustav-Steinmann-Medaille — the highest distinction of the Geologische Vereinigung e.V. (Full article...)

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