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Formation of mineral deposits in relation to structural developments of the kaapvaal craton
Copyright policy )Formation of mineral deposits in relation to structural developments of the kaapvaal craton
The relation between tectonics, magmatism, and mineralisation of the South African Precambrian shield is discussed. A geosynclinal and a synorogenic stage follow a long period of cratonic tectonics with associated magmatism and important mineralisation. Three different types of magma are distinguished: Primary simic magma partly of alkali character, hybrid magma of predominantly intermediate composition, and palingenetic acid magma mainly of calk-alkali character. It appears difficult to assign magmatism and mineralisation of the cratonic super-structure to any of Stille's geotectonic stages. Cratonic tectonics with considerable juvenile-basaltic as well as palingenetic magmatism characterize this stage which is associated with large mineral deposits. This stage is named cratonic.
Microsoft Academic Graph classification: geography geography.geographical_feature_category Geochemistry Mineral resource classification Tectonics Craton Precambrian Stage (stratigraphy) Magmatism Magma Intermediate composition Geology
Geophysics, Geochemistry and Petrology, Economic Geology
Geophysics, Geochemistry and Petrology, Economic Geology
Microsoft Academic Graph classification: geography geography.geographical_feature_category Geochemistry Mineral resource classification Tectonics Craton Precambrian Stage (stratigraphy) Magmatism Magma Intermediate composition Geology
citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).3 popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.Average influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Average impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Average citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).3 popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.Average influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Average impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Average
Citations provided by BIP!Popularity provided by BIP!The relation between tectonics, magmatism, and mineralisation of the South African Precambrian shield is discussed. A geosynclinal and a synorogenic stage follow a long period of cratonic tectonics with associated magmatism and important mineralisation. Three different types of magma are distinguished: Primary simic magma partly of alkali character, hybrid magma of predominantly intermediate composition, and palingenetic acid magma mainly of calk-alkali character. It appears difficult to assign magmatism and mineralisation of the cratonic super-structure to any of Stille's geotectonic stages. Cratonic tectonics with considerable juvenile-basaltic as well as palingenetic magmatism characterize this stage which is associated with large mineral deposits. This stage is named cratonic.