GRANITE SHEETED COMPLEXES - EVIDENCE FOR THE DYKING ASCENT MECHANISM

被引：136

作者：

HUTTON, DHW

机构：

[1] Department of Geological Sciences, University of Durham

来源：

TRANSACTIONS OF THE ROYAL SOCIETY OF EDINBURGH-EARTH SCIENCES | 1992年 / 83卷

关键词：

DYKES; EMPLACEMENT; ASCENT; GRANITE VISCOSITY;

D O I：

10.1017/S0263593300008038

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

A review of granite emplacement mechanisms in transcurrent, extensional and contractional (thrust sense) shear zones reveals that in all three tectonic settings the plutons have been constructed by multiple granite sheeting parallel to the shear zone walls and deformation fabrics. The sheets and plutons are non-Andersonian in type and were emplaced obliquely to the principal stress directions. Their shape and orientation is more likely to reflect the exploitation of faults and shear zones which were active during emplacement. Sheeting (dyking) is therefore also likely to be the mechanism of ascent along fault zones in the crust.

引用

页码：377 / 382

页数：6

共 38 条

[11]

England R.W., The identification of granitic diapirs, J GEOL SOC LONDON, 147, pp. 931-933, (1990)

[12]

Guineberteau B., Bouchez J.L., Vigneresse J.L., The Mortagne Granite pluton (France) emplaced by pull-apart along a shear zone: structural and gravimetric arguments, regional implications, BULL GEOL SOC AM, 99, pp. 763-770, (1987)

[13]

Hall A., Igneous petrology, (1987)

[14]

Holder M.T., An emplacement mechanism for post tectonic granites and its implications for their geochemical features, Origin of granite batholiths: geochemical evidence, pp. 116-128, (1979)

[15]

Hutton D.H.W., A tectonic model for the emplacement of the Main Donegal Granite, NW Ireland, J GEOL SOC LONDON, 139, pp. 615-631, (1982)

[16]

Hutton D.H.W., Granite emplacement mechanisms and tectonic controls: inferences from deformation studies, TRANS R SOC EDINBURGH EARTH SCI, 79, pp. 245-255, (1988)

[17]

Hutton D.H.W., Dewey J.F., Palaeozoic terrane accretion in the Western Irish Caledonides, TECTONICS, 5, pp. 1115-1124, (1986)

[18]

Hutton D.H.W., Ingram G.M., The Great Tonalite Sill of South East Alaska and British Columbia: emplacement into an active contractional high angle reverse shear zone, TRANS R SOC EDINBURGH EARTH SCI, 83, pp. 383-386, (1992)

[19]

Hutton D.H.W., Dempster T.J., Brown P.E., Becker S.M., A new mechanism of granite emplacement: intrusion in active extensional shear zones, NATURE, 343, pp. 452-455, (1990)

[20]

John B.E., Structural reconstruction and zonation of a tilted mid-crustal magma chamber: the felsic Chemehuevi Mountains plutonic suite, GEOLOGY, 16, pp. 613-617, (1988)

← 1 2 3 4 →