A discussion of possible heat sources during nappe stacking: The origin of Barrovian metamorphism within the Caledonian thrust sheets of NW Scotland

Journal of the Geological Society

Volumn 163, Issue 4, 2006, Pages 579-582

  Johnson, M R W ^a   Strachan, Rob A ^b  

^a UNIVERSITY OF EDINBURGH   (United Kingdom)

^b UNIVERSITY OF PORTSMOUTH   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

GEOCHRONOLOGY; HEAT SOURCE; METAMORPHISM; NAPPE; OROGENY; REGIONAL GEOLOGY; STACKING; THRUST;

EURASIA; EUROPE; SCOTLAND; UNITED KINGDOM; WESTERN EUROPE;

EID: 33745589215     PISSN: 00167649     EISSN: None     Source Type: Journal    
DOI: 10.1144/0016-764920-168     Document Type: Article

References (38)

1. Alsop, G.I., Holdsworth, R.E. & Strachan, R.A. 1996. Transport-parallel cross folds within a mid-crustal Caledonian thrust stack, northern Scotland. Journal of Structural Geology, 18, 783-790.
2. Barr, D., Holdsworth, R.E. & Roberst, A.M. 1986. Caledonian ductile thrusting within a Precambrian metamorphic complex: the Moine of northwestern Scotland. Geological Society of America Bulletin, 97, 754-764.
3. Barton, M.D. & Hansen, R.B. 1989. Magmatism and the development of low-pressure metamorphic belts: implications from the western United States and thermal modelling. Geological Society of America Bulletin, 101, 1051-1065.
4. Burg, J.-P. & Gerya, T.V. 2005. The role of viscous heating in Barrovian metamorphism of collisional orogens: thermomechanical models and application to the Lepontine Alps. Journal of Metamorphic Geology, 23. 75-95.
5. Burns, I.M. 1994. Tectonothermal evolution and petrogenesis of the Naver and Kirtomy nappes, north Sutherland, Scotland. PhD thesis, Oxford Brookes University.
6. Collins, W.J. 2002. Hot orogens, tectonic switching, and creation of continental crust. Geology, 30, 535-538.
7. Coward, M. 1990. The Precambrian Caledonian and Variscan framework to NW Europe. In: Hardman, R.F.P. & Brooks, J. (eds) Tectonic Events Responsible for Britain's Oil and Gas Reserves. Geological Society, London, Special Publications, 55, 1-34.
8. 39Ar and Rb-Sr chronology. Journal of the Geological Society, London, 158, 501-512.
9. Dewey, J.F. & Strachan, R.A. 2003. Changing Silurian-Devonian relative plate motion in the Caledonides: sinistral transpression to sinistral transtension. Journal of the Geological Society, London, 160, 219-229.
10. Elliott, D. & Johnson, M.R.W. 1980. Structural evolution of the northern part of the Moine thrust belt, NW Scotland. Transactions of the Royal Society of Edinburgh: Earth Sciences, 71, 69-96.
11. England, P.C. & Thompson, A.B. 1984a. Pressure-temperature-time paths of regional metamorphism. Part 1: Heat transfer during the evolution of regions of thickened crust. Journal of Petrology, 25, 894-928.
12. England, P.C. & Thompson, A.B. 1984b. Pressure-temperature-time paths of regional metamorphism. Part 2: Their inference and interpretation using mineral assemblages in metamorphic rocks. Journal of Petrology, 25, 929-955.
13. England, P.C., Le Fort, P., Molnar, P. & Pecher, A. 1992. Heat sources for Tertiary metamorphism and anatexis in the Annapurna-Manaslu region, central Nepal. Journal of Geophysical Research, 77, 2107-2128.
14. Freeman, S.R., Butler, R.W.H., Cliff, R.A. & Rex, D.C. 1998. Direct dating of mylonite evolution: a multidisciplinary geochronological study from the Moine Thrust Zone, NW Scotland. Journal of the Geological Society, London, 155, 745-758.
15. Friend, C.R.L., Jones, K.A. & Burns, I.M. 2000. New high-pressure event in the Moine Supergroup, northern Scotland: implications for Taconic (early Caledonian) crustal evolution. Geology, 28, 543-546.
16. Halliday, A.N., Aftalion, M., Parsons, I., Dickin, A.P. & Johnson, M.R.W. 1987. Syn-orogenic alkaline magmatism and its relation to the Moine Thrust Zone and the thermal state of the lithosphere in NW Scotland. Journal of the Geological Society, London, 144, 611-618.
17. Holdsworth, R.E., Strachan, R.A. & Alsop, G.I. 2001. Geology of the Tongue District. Memoirs of the British Geological Survey.
18. Holdsworth, R.E., Alsop, G.I. & Strachan, R.A. 2006. Tectonic stratigraphy and structural continuity of the northernmost Moine Thrust Zone and Moine Nappe, Scottish Caledonides. In: Ries, A.C. (ed.) Global Tectonic Processes. Geological Society of London, Special Publications, in press.
19. Huerta, A.D., Royden, L.C. & Hodges, K.V. 1998. The thermal structure of cold orogens as a response to accretion, erosion and radiogenic heating. Journal of Geophysical Research, 103, 15287-15302.
20. Hyndman, R.D., Currie, C.A. & Mazzotti, S.P. 2005. Subduction zone backarcs, mobile belts, and orogenic heat. GSA Today, 15, 4-10.
21. Jamieson, R.A., Beaumont, C., Fullsack, P. & Lee, B. 1998. Barrovian metamorphism: where's the heat? In: Treloar, P.J. & O'Brien, P.J. (eds) What Drives Metamorphism and Metamorphic Reactions?. Geological Society, London, Special Publications, 138, 23-51.
22. Johnson, M.R.W., Oliver, G.J.H., Kelley, S. & Winter, D.A. 1985. Thermal effects and timing of thrusting in the Moine Thrust zone. Journal of the Geological Society, London, 142, 863-873.
23. Jones, K.A. & Strachan, R.A. 2000. Crustal thickening and ductile extension in the NE Greenland Caledonides: a metamorphic record from anatectic pelites. Journal of Metamorphic Geology, 18, 719-735.
24. Kelley, S. 1988, The relationship between K-Ar mineral ages, mica grain size and movement on the Moine Thrust Zone, NW Highlands, Scotland. Journal of the Geological Society, London, 145, 1-10.
25. Kinny, P.D., Friend, C.R.L., Strachan, R.A., Watt, G.R. & Burns, I.M. 1999. U-Pb geochronology of regional migmatites in East Sutherland, Scotland: evidence for crustal melting during the Caledonian orogeny. Journal of the Geological Society, London, 156, 1143-1152.
26. Kinny, P.D., Strachan, R.A., Friend, C.R.L., Kocks H., Rogers, G. & Paterson, B.A. 2003. U-Pb geochronology of deformed metagranites in central Sutherland, Scotland: evidence for widespread late Silurian metamorphism and ductile deformation of the Moine Supergroup during the Caledonian orogeny. Journal of the Geological Society, London, 160, 259-269.
27. Kocks, H., Strachan, R.A. & Evans, J.A. 2006. Heterogeneous reworking of Grampian metamorphic complexes during Scandian thrusting in the Scottish Caledonides: insights into the setting, emplacement and U-Pb geochronology of the Strath Halladale Granite. Journal of the Geological Society, London, 163, 525-528.
28. Lambert, R.St.J. & McKerrow, W.S. 1976. The Grampian orogeny. Scottish Journal of Geology, 12, 271-292.
29. Oliver G.J.H., Chen, F., Buchwaldt, R. & Hegner, E. 2000. Fast tectonometamorphism and exhumation of the type-area of the Barrovian and Buchan zones. Geology, 28, 459-462.
30. Oxburgh, R.A. & Turcotte, D. 1974. Thermal gradients and regional metamorphism in overthrust terrains with special reference to the eastern Alps. Schweizerische Mineralogische und Petrologische Mitteilungen, 54, 641.
31. Parsons. I. & McKirdy, A.P. 1983. The inter-relationship of igneous activity and thrusting in Assynt, excavations at Loch Borralan. Scottish Journal of Geology, 19, 59-67.
32. Roberts, D. 2003. The Scandinavian Caledonides: event chronology, palaeogeographic settings and likely modern analogues. Tectonophysics, 365, 283-299.
33. Ryan, P.D. & Dewey, J.F. 1991. A geological and tectonic cross-section of the Caledonides of western Ireland. Journal of the Geological Society, London, 148, 173-180.
34. Searle, M.P., Cooper, D.J.W. & Rex, A.J. 1988. Collision tectonics of the Ladakh-Zanskar Himalaya. Transactions of the Royal Society of London, Series A, 326, 117-149.
35. Soper, N.J. & Brown, P. 1971. Relations between metamorphism and migmatisation in the northern Moine Nappe. Scottish Journal of Geology, 7, 305-326.
36. Soper, N.J., Strachan, R.A., Holdsworth, R.E., Gayer, R.A. & Greiling, R.O. 1992. Sinistral transpression and the Silurian closure of Iapetus. Journal of the Geological Society, London, 149, 871-880.
37. Thompson, A.B., Schulmann, K., Jezek, J. & Tolar, V. 2001. Thermally softened extensional zones (arcs and rifts) as precursors to orogenic belts. Tectonophysics, 332, 115-141.
38. van Breeman, O., Aftalion, M. & Johnson, M.R.W. 1979. Age of the Loch Borrolan complex, Assynt and late movements along the Moine Thrust Zone. Journal of the Geological Society, London, 16, 489-495.