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- Greenstone_belt abstract "Greenstone belts are zones of variably metamorphosed mafic to ultramafic volcanic sequences with associated sedimentary rocks that occur within Archaean and Proterozoic cratons between granite and gneiss bodies. The name comes from the green hue imparted by the colour of the metamorphic minerals within the mafic rocks. Chlorite, actinolite and other green amphiboles are the typical green minerals. A greenstone belt is typically several dozens to several thousand kilometres long and although composed of a great variety of individual rock units, is considered a 'stratigraphic grouping' in its own right, at least on continental scales. Typically, a greenstone belt within the greater volume of otherwise homogeneous granite-gneiss within a craton contains a significantly larger degree of heterogeneity and complications and forms a tectonic marker far more distinct than the much more voluminous and homogeneous granites. Additionally, a greenstone belt contains far more information on tectonic and metamorphic events, deformations and palaeogeologic conditions than the granite and gneiss events, because the vast majority of greenstones are interpreted as altered basalts and other volcanic or sedimentary rocks. As such, understanding the nature and origin of greenstone belts is the most fruitful way of studying Archaean geological history. Greenstone belts are basically metamorphosed volcanic belts.".
- Greenstone_belt thumbnail Temagami_greenstone_belt_pillow_lava.jpg?width=300.
- Greenstone_belt wikiPageExternalLink gsbelts.htm.
- Greenstone_belt wikiPageID "849220".
- Greenstone_belt wikiPageRevisionID "591514899".
- Greenstone_belt hasPhotoCollection Greenstone_belt.
- Greenstone_belt subject Category:Greenstone_belts.
- Greenstone_belt subject Category:Metamorphic_petrology.
- Greenstone_belt subject Category:Petrology.
- Greenstone_belt subject Category:Plate_tectonics.
- Greenstone_belt subject Category:Volcanic_belts.
- Greenstone_belt type Abstraction100002137.
- Greenstone_belt type Attribute100024264.
- Greenstone_belt type Belt102827883.
- Greenstone_belt type ClosedCurve113868248.
- Greenstone_belt type Curve113867641.
- Greenstone_belt type GreenstoneBelts.
- Greenstone_belt type Line113863771.
- Greenstone_belt type Loop113875571.
- Greenstone_belt type Shape100027807.
- Greenstone_belt type SimpleClosedCurve113868371.
- Greenstone_belt type VolcanicBelts.
- Greenstone_belt comment "Greenstone belts are zones of variably metamorphosed mafic to ultramafic volcanic sequences with associated sedimentary rocks that occur within Archaean and Proterozoic cratons between granite and gneiss bodies. The name comes from the green hue imparted by the colour of the metamorphic minerals within the mafic rocks. Chlorite, actinolite and other green amphiboles are the typical green minerals.".
- Greenstone_belt label "Ceinture de roches vertes".
- Greenstone_belt label "Cinturão de rochas verdes".
- Greenstone_belt label "Cinturón de rocas verdes".
- Greenstone_belt label "Greenstone belt".
- Greenstone_belt label "Greenstone belt".
- Greenstone_belt label "Grünsteingürtel".
- Greenstone_belt sameAs Grünsteingürtel.
- Greenstone_belt sameAs Cinturón_de_rocas_verdes.
- Greenstone_belt sameAs Ceinture_de_roches_vertes.
- Greenstone_belt sameAs Greenstone_belt.
- Greenstone_belt sameAs Cinturão_de_rochas_verdes.
- Greenstone_belt sameAs m.03gx52.
- Greenstone_belt sameAs Q595991.
- Greenstone_belt sameAs Q595991.
- Greenstone_belt sameAs Greenstone_belt.
- Greenstone_belt wasDerivedFrom Greenstone_belt?oldid=591514899.
- Greenstone_belt depiction Temagami_greenstone_belt_pillow_lava.jpg.
- Greenstone_belt isPrimaryTopicOf Greenstone_belt.
