Petford, N., Cruden, A.R., McCaffrey, K.J. and Vigneresse, J.L., 2000. Granite magma formation, transport and emplacement in the Earth's crust. Nature, 408 (6813), pp. 669-673.
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The origin of granites was once a question solely for petrologists and geochemists. But in recent years a consensus has emerged that recognizes the essential role of deformation in the segregation, transport and emplacement of silica-rich melts in the continental crust. Accepted petrological models are being questioned, either because they require unrealistic rheological behaviours of rocks and magmas, or because they do not satisfactorily explain the available structural or geophysical data. Provided flow is continuous, mechanical considerations suggest that--far from being geologically sluggish--granite magmatism is a rapid, dynamic process operating at timescales of < or = 100,000 years, irrespective of tectonic setting.
|Uncontrolled Keywords:||Earth, granite, physical geology, igneous rocks, crust|
|Subjects:||Science > Earth Sciences|
|Group:||University Executive Team|
|Deposited By:||Ms MJ Bowden|
|Deposited On:||28 Jul 2007|
|Last Modified:||07 Mar 2013 14:42|
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