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On the Tectonic Environment Of Basic Magma

Published online by Cambridge University Press:  01 May 2009

Germaine A. Joplin
Germaine A. Joplin
Affiliation:
Department of Geophysics, Australian National University, Canberra.
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Abstract

An attempt has been made to show that basic magma is associated with vertical and not with folding movement, that basic intrusions take the form of those characteristic of unfolded regions and of relatively high levels and that differentiation in situ is common.

It is argued that basic magma is emplaced in the orogenic belts as flows and typically non-orogenic intrusions during the geosynclinal or sinking phase of the orogenic cycle, that rocks of the appinitic suite, which commonly occur as stocks associated with granodiorites, are formed from these non-orogenic basic rocks by a process of hybridization during a subsequent folding phase, but that no further basic magma is introduced during this phase.

It is suggested that the terms Non-orogenic Association and Orogenic Association might replace Volcanic Association and Plutonic Association to indicate the relation of basic and acid magmas to their tectonic environment.

Information

Type
Articles
Information
Geological Magazine , Volume 97 , Issue 5 , October 1960, pp. 363 - 368
Copyright
Copyright © Cambridge University Press 1960

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References

REFERENCES

Benson, W. N., 1926. The Tectonic Conditions accompanying the Intrusion of Basic and Ultrabasic Igneous Rocks. Mem. Nat. Acad. Sci. 1, xix, 1–89.Google Scholar
Bucher, W. H., 1933. The Deformation of the Earth's Crust. Princeton University Press.Google Scholar
Buddington, A. F., 1959. Granite Emplacement with Special reference to North America, Bull. Geol. Soc. Amer., lxx, 736.Google Scholar
Hess, H. H., 1938. A Primary Peridotite Magma. Amer. Journ. Sci., xxxv, 321–344.CrossRefGoogle Scholar
Hess, H. H., 1940. Appalachian Peridotite Belt. Its Significance in Sequence of Events in Mountain Building. Abstr. Bull. Geol. Soc. Amer., li, 1996.Google Scholar
Joplin, G. A., 1959. On the Origin and occurrence of Basic Bodies associated with Discordant Bathyliths. Geol. Mag., xcvi, 361–373.CrossRefGoogle Scholar
Kennedy, W. Q., and Anderson, E. M., 1938. Crustal Layers and the Origin of Magmas. Inter. Geophy. Union Bull. Volc., ii, 3.Google Scholar
le Verrier, M., 1888. Note sur les Causes des Mouvements Orogeniques Bull. Soc. Geol. France, 3rd Ser., xvi, 498.Google Scholar
Scott, B., 1953. The Metamorphism of the Cambrian Basic Volcanic Rocks of Tasmania and its Relationship to Geosynclinal Environment. Proc. Roy. Soc. Tasmania, lxxxviii, 129–149.Google Scholar
Tilley, C. E., 1951. Some Aspects of Magmatic Evolution. Quart. Journ. Geol. Soc., cvi, 37–61.Google Scholar
Turner, F. J. and Verhoogen, J., 1951. Igneous and Metamorphic Petrology. New York, p. 247.Google Scholar
Tyrrell, G. W., 1926. The Principles of Petrology. London, pp. 17–26.Google Scholar
Waters, A. C., 1955. Volcanic Rocks and the Tectonic Cycle. Geol. Soc. Amer. Spec. Paper, lxii, 703–722.Google Scholar