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Grant Institute of Geology, University of Edinburgh, Edinburgh, Great Britain, Present &dcl001; Abteilung für Isotopengeologie, Universität Bern, Bern, Switzerland
Rb-Sr and K-Ar mineral ages from the Dalradian rocks of Angus and Perthshire indicate considerable diachronism of cooling, following the Caledonian regional metamorphism. The oldest mineral ages (~515 Ma) are similar to the independent estimates of peak metamorphic age, and hence indicate very rapid cooling; they occur in the highest grade samples of the Angus region and are associated with localized uplift. Regional rapid uplift events at 460–440 Ma and 410–390 Ma may also be recognized and correlated with structural and igneous activity and metamorphic age dates within the Scottish Highlands.
Thermal models show the importance of localized and discontinuous uplift in determining both the timing of metamorphism and the shape of the P–T paths. They suggest that the major diachronous metamorphism (and granite production) in the Scottish Highlands is depth controlled rather than representing major lateral diachronism of thickening or heat sources.
Localized uplift may exercise considerable control on mineral facies variation within orogenic belts. The local uplift in Angus introduces hot, high-pressure Tarfside Nappe rocks into higher level Tay Nappe rocks. Thus, the uniform block uplift models frequently used in the interpretation of metamorphic and structural phenomena in orogenic belts are an oversimplification of the real events.
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|
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|
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|
|
|
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|
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|
|
|
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|
|
|
|
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|
|
|
|
|
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|
|
|
|
|
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|
|
|
|
|
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|
|
|
|
|
|
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|
|
|
|
|
|
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|
|
|
|
|
|
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|
|
|
|
|
|
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|
|
|
|
|
|
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|
|
|
|
|
|
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|
|
|
|
|
|
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|
|
|
|
|
|
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|
|
|
|
|
|
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|
|
|
|
|
|
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|
|
|
|
|
|
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|
|
|
|
|
|
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|
|
|
|
|
|
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|
|
|
|
|
|
J. Ridley Vertical movement in orogenic belts and the timing of metamorphism relative to deformation Geological Society, London, Special Publications, 1989; 43: 103 - 115. [Abstract] [PDF]
|
|
|
|
|
|
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|
|
|
|
|
|
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|
|
|
|
|
|
E. M. Elias, R. M. Macintyre, and B. E. Leake The cooling history of Connemara, western Ireland, from K-Ar and Rb-Sr age studies Journal of the Geological Society, 1988; 145: 649 - 660. [Abstract] [PDF]
|
|
|
|
|
|
P. D. W. HAUGHTON A cryptic Caledonian flysch terrane in Scotland Journal of the Geological Society, 1988; 145: 685 - 703. [Abstract] [PDF]
|
|
|
|
|
|
S. KELLEY The relationship between K-Ar mineral ages, mica grainsizes and movement on the Moine Thrust Zone, NW Highlands, Scotland Journal of the Geological Society, 1988; 145: 1 - 10. [Abstract] [PDF]
|
|
|
|
|
|
B. Harte Lower Palaeozoic metamorphism in the Moine-Dalradian belt of the British Isles Geological Society, London, Special Publications, 1988; 38: 123 - 134. [Abstract] [PDF]
|
|
|
|
|
|
L. M. Hall and D. Roberts Timing of Ordovician deformation in the Caledonian-Appalachian orogen Geological Society, London, Special Publications, 1988; 38: 291 - 309. [Abstract] [PDF]
|
|
|
|
|
|
C. M. Graham The role of the Cruachan Lineament during Dalradian evolution Scottish Journal of Geology, 1986; 22: 257 - 270. [Abstract] [PDF]
|
|
|
|
|
|
D. J. FETTES, C. M. GRAHAM, B. HARTE, and J. A. PLANT Lineaments and basement domains: an alternative view of Dalradian evolution Journal of the Geological Society, 1986; 143: 453 - 464. [Abstract] [PDF]
|
|
|
|
|
|
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|
|
|
|
|
|
R. A. Cliff Isotopic dating in metamorphic belts Journal of the Geological Society, 1985; 142: 97 - 110. [Abstract] [PDF]
|
|
|
|
|
|
H. J. Bradbury The Caledonian metamorphic core: an Alpine model Journal of the Geological Society, 1985; 142: 129 - 136. [Abstract] [PDF]
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