- basement complex
1. : the assemblage of metamorphic and igneous rocks underlying stratified rocks in a particular region
* * *Geol.the undifferentiated assemblage of rock (basement rock) underlying the oldest stratified rocks in any region: usually crystalline, metamorphosed, and mostly, but not necessarily, Precambrian in age.[1895-1900]
* * *basement complex,Geology. a deposit of chiefly metamorphic and igneous rocks under the stratified rocks of any region.
Useful english dictionary. 2012.
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basement complex — Geol. the undifferentiated assemblage of rock (basement rock) underlying the oldest stratified rocks in any region: usually crystalline, metamorphosed, and mostly, but not necessarily, Precambrian in age. [1895 1900] * * * … Universalium
basement complex — /ˈbeɪsmənt ˌkɒmplɛks/ (say baysmuhnt .kompleks) noun a series of metamorphic and igneous rocks underlying dominantly sedimentary rocks, often, though not necessarily, formed before the Cambrian period. Also, basement rock … Australian English dictionary
basement — [bās′mənt] n. [ BASE1 + MENT] 1. the foundation or lower part of a wall or structure 2. the lowest story of a building, below the main floor and wholly or partly below the surface of the ground 3. Geol. the oldest layer of igneous and metamorphic … English World dictionary
basement rock — basement rock, Geology. the dense underlying rock of a basement complex … Useful english dictionary
basement — /ˈbeɪsmənt / (say baysmuhnt) noun 1. a storey of a building partly or wholly underground. 2. the portion of a structure which supports those portions which come above it. 3. the substructure of a columnar or arched construction. 4. Geology a. →… … Australian English dictionary
Basement rock — usually refers to the thick foundation of ancient, and oldest metamorphic and igneous rock that forms the crust of continents, often in the form of granite. Basement rock is contrasted to overlying sedimentary rocks which are laid down on top of… … Wikipedia
Vishnu Basement Rocks — Als Vishnu Basement Rocks oder auch Vishnu Group (Vishnu Grundgebirge oder Vishnu Gruppe) – benannt nach der Hindugottheit Vishnu – wird das paläoproterozoische polymetamorphe kristalline Grundgebirge bezeichnet, das im US amerikanischen… … Deutsch Wikipedia
Prentis Building and DeRoy Auditorium Complex — U.S. National Register of Historic Places … Wikipedia
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Infrahelvetic complex — The Infrahelvetic complex is a tectonic unit in the Swiss Alps. It consists of autochthonous rocks of the former southern continental margin of the European Plate.The Infrahelvetic complex has been overthrusted by the Helvetic nappes, that partly … Wikipedia