Form of land quality; soil texture. "Yi-kun" "62, direct side big" three Wei Wangbi Note: The "center was being very in geology, any of its natural and material self." Kong Ying Shu: "quality that shape quality. In the form of quality, straight side again Great, this is the best six Futai in the polar body may have. "Liang" of China will be strong ":" Geology and fertile breeding property. "
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Composition and structure of the crust
Crustal composition and structure. Ai Qing "fish fossil" poem: "How many million years after the geological survey team members, found in the rocks you still vivid." Xu Chi, "Geology of the Light": "It is quite broken in geology, and the peninsula, islands, headland, Harbour and white. "
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Introduction
Refers to the nature and geological features of Earth. Mainly refers to the Earth's composition, structure, structure, development history, etc., including the differentiation of the Earth's spheres, physical properties, chemical properties, rock properties, mineral composition, rock and rock mass output Zhuangtai, contact relationship, the earth's tectonic evolution history, the history of biological evolution, climate change history, and mineral resources, status and distribution of such occurrence. In China, the "geological" first seen in the Three Kingdoms of Wei Wang Bi (226 ~ 249) of the "Book of Note-kun", but then are philosophical concepts. 1853 (Qing Xianfeng three years) published "The book is" in "Geology" is the term of the present can see the first concept of scientific significance.
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Geologic
Quaternary - Holocene - 1 million years ago Quaternary - Pleistocene - 250 million years ago Neogene - a new world - 1200 years ago Neogene - Miocene - 2500 million years ago Paleocene - Oligocene - 4000 million years ago Paleocene - Eocene - 6000 million years ago Cenozoic - Paleogene - Paleocene - 6700 million years ago Cretaceous - 137 million years ago Jurassic - 195 million years ago Mesozoic - Triassic - 230 million years ago Permian - 285 million years ago Carboniferous Period - 350 million years ago Devonian - 400 million years ago Silurian - 440 million years ago Ordovician period - 500 million years ago Phanerozoic - Paleozoic - Cambrian - 600 million years ago Proterozoic - Sinian - 1.80 billion years ago Hidden Phanerozoic - Archean ago> 50 billion years
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Encyclopedia
Geology geology d IZhl Geology (gcology) refers to a part of the Earth or Earth The nature and characteristics. In the book refers to the plant secondary geological site _select_ion Work. Its main contents are: ① assess potential geological disasters. Including places Table fracture, collapse, subsidence or uplift, fault coil moving, slope instability Qualitative and foundation soil liquefaction; ② Evaluation of foundation soil characteristics, in order to obtain reasonable Based soil classification; ③ Evaluation of project design in the geotechnical parameters used. The The basis of geological survey work. Geological Survey is usually divided into regions, near Domain, and the site area near the site of four ranges. Geological Survey of scope of the survey area is generally a radius of 150 km, Its main purpose is to provide the regional geological and tectonic framework of the total Geodynamics of the information, and identify those that may affect the site To co-operate safety-related geological features. Collection and analysis of main literature resources Materials, and typically these geological features in the scale of not less than that 1'1000000 the map. Recent survey of regional geological survey of the radius of typically 25 km, its main purpose is to identify the context of recent regional geological structure 'special Sign, for the establishment of district city model and assessment of geological structure to show the site area Provide basic information security. This work further collection and analysis Smaller range of more detailed information, while construction of a new Near the regional context to determine the latest fault movement times; necessary Ru slope of the key sections of geological maps to identify the strata within the lot, Structural geology and tectonic history. These geological features that typically required In the scale of not less than 1:200,000 map. Geological Survey site investigation near the radius is 5 km, its main purpose is to verify that the area directly surrounding the site is Including surface rupture, including whether there is a potential permanent ground deformation. This Task requires a larger scale geological mapping and fault activity Investigation. Through the investigation should provide the following information: the existence of active faults, Slope, soil and ground-based stability, the potential geological hazards (such as differences in stripping Erosion, karst, fracture, fault creep, and a similar expansion of the instability of the foundation soil Material) lots of features, as well as the potential caused by human activity geological disaster Disaster zone characteristics. These geological features to be typically expressed in percentage Not less than 1:25,000 scale geological map. Site near the area to determine whether the active fault fault is Nuclear power plant site _select_ion is also easily one of the key geological controversial question Problems. Currently a late Pleistocene can be Q3 (10 years) has not Has been regarded as passive movement of the fault fault, but the need to prove that another neighbor Near a known capable fault movement will not cause the fault movement. To this end, Investigations must be appropriate and proven technologies and methods, Paul Card can identify the fault over a length of 300m, and the investigation into Any faults and dislocation activity to make a comprehensive evaluation of the history. Evaluation And faults (including the possibility of secondary surface rupture) the zone range Small. Geological Survey site investigation of the area Ikm or Larger, its main purpose is to carry the potential for permanent ground deformation Learn more step, and provide geotechnical characteristics of foundation materials. This work For addition to the large scale geological mapping, the need to use drilling, pitting, Geophysical survey and laboratory tests to investigate. Through investigation Should provide the following information
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English Expression
: geology
n.: lateral planation, intruded rock, intrusive rocks, isoclinal fault, isoclinal valley, isostatic compensation, xyloid lignite, glacial outwash, Middle Pennsylvania, phosphorite rock, interfacial angle, pudding stone, glacial retreat, saturated rock, schistose structure, axial plane schistosity, shrinkage theory, subsequent river, superincumbent bed, soil characteristics, disappearance of outcrop, basement complex, bedding plane, sea chasm, frost churning, nivation cirque, combination gas, contraction joint, cretaceous period [system], diluvial epoch, intercalary strata
contaminate