Late Precambrian tectonothermal evolution of the Malverns Complex

Journal of the Geological Society

Volumn 153, Issue 4, 1996, Pages 589-600

  Strachan, R A ^a   Nance, R D ^b   Dallmeyer, R D ^c   D'Lemos, R S ^a   Murphy, J B ^d   Watt, G R ^a  

^a OXFORD BROOKES UNIVERSITY   (United Kingdom)

^b OHIO UNIVERSITY   (United States)

^c UNIVERSITY OF GEORGIA   (United States)

^d ST FRANCIS XAVIER UNIVERSITY   (Canada)

Author keywords

40Ar 39Ar; Avalon Terrane; Calc alkaline composition; Malvern Hills; Metamorphism

Indexed keywords

ARGON-40/ARGON-39 DATING; CALC ALKALINE ROCK; DUCTILE DEFORMATION; MALVERNS COMPLEX; METAMORPHISM; PROTEROZOIC; TECTONOTHERMAL EVOLUTION;

UK, ENGLAND, HEREFORD AND WORCESTER, MALVERNS;

EID: 0030462080     PISSN: 00167649     EISSN: None     Source Type: Journal    
DOI: 10.1144/gsjgs.153.4.0589     Document Type: Article

References (39)

1. BAKER, J.W. 1971. The Proterozoic History of Southern England. Proceedings of the Geologists' Association, 82, 249-266.
2. BECKINSALE, R.D., THORPE, R.S., PANKHURST, R.J. & EVANS, J.A. 1981. Rb-Sr whole-rock isochron evidence for the age of the Malvern Hills Complex. Journal of the Geological Society, London. 138, 69-73.
3. BEVIER, M.L., BARR, S.M., WHITE, C.E. & MACDONALD, A.S. 1993. U-Pb geochronologic constraints on the volcanic evolution of the Mira (Avalon) terrane, southeastern Cape Breton Island, Nova Scotia. Canadian Journal of Earth Sciences. 30, 1-10.
4. BROOKS, M. 1970. Pre-Llandovery tectonism and the Malvern structure. Proceedings of the Geologists' Association. 81, 249-268.
5. BULLARD, D.W. 1975. Aspects of the geology and geochemistry of the soils and Precambrian rocks of the Malvern Hills, Worcestershire. PhD thesis. University of Nottingham.
6. _ 1989. Malvern Hills. Nature Conservancy Council.
7. CALLAWAY, C. 1889. On the production of the secondary minerals at shear zones in the crystalline rocks of the Malvern Hills. Quarterly Journal of the Geological Society of London, 45, 475-503.
8. CHADWICK, R.A. 1985. Seismic reflection investigations into the stratigraphy and structural evolution of the Worcester Basin. Journal of the Geological Society, London, 142, 187-202.
9. DALLMEYER, R.D. & GIL-IBARGUCHI, J.I. 1990. Age of amphibolitic metamorphism in the ophiolitic unit of the Morais allochthon (Portugal): implications for early Hercynian orogenesis in the Iberian Massif. Journal of the Geological Society, London, 147, 873-878.
10. 39Ar dating using the Geological Survey TRIGA reactor. U.S. Geological Survey Professional Paper 1176.
11. DALY, M.C. 1989. Correlations between Nazca/Farallon plate kinematics and forearc basin evolution in Ecuador. Tectonics, 8, 769-790.
12. DODSON, M.H. 1973. Closure temperature in cooling geochronological and petrological systems. Contributions to Mineralogy and Petrology, 40, 259-274.
13. FITCH, F.J., MILLER, J.A., EVANS, A.L., GRASTY, R.L. & MENEISY, M.Y. 1969. Isotopic Age Determination on Rocks from Wales and the Welsh Borders. In: WOOD, A. (ed.) The Precambrian and Lower Palaeozoic Rocks of Wales, University of Wales, 23-45.
14. GIBBONS, W. & HORÁK, J. 1990. Contrasting metamorphic terranes in northwest Wales. In: D'LEMOS, R.S., STRACHAN, R.A. & TOPLEY, C.G. (eds) The Cadomian Orogeny. Geological Society of London, Special Publications, 51, 315-327.
15. HORÁK, J.M. 1993 The late Precambrian Coedana and Sarn complexes, northwest Wales - a geochemical and petrological study. PhD thesis, University of Wales.
16. LAMBERT, R.ST.J. & HOLLAND, J.G. 1971. The Petrography and Chemistry of the Igneous Complex of the Malvern Hills, England. Proceedings of the Geologists' Association, 82, 23-51.
17. _ & REX, D.C. 1966. Isotopic ages of Minerals from the Precambrian Complex of the Malverns. Nature, 209, 605-606.
18. LEAKE, B.E. 1978. Nomenclature of amphiboles. Mineralogical Magazine, 42, 533-563.
19. 39Ar method. Oxford University Press.
20. NANCE, R.D., MURPHY, J.D., STRACHAN, R.A., D'LEMOS, R.S. & TAYLOR, G.K. 1991. Late Proterozoic tectonostratigraphic evolution of the Avalonian and Cadomian terranes. Precambrian Research, 53, 41-78.
21. PATCHETT, P.J. & JOCELYN, J. 1979. U-Pb zircon ages for late Precambrian igneous rocks in South Wales. Journal of the Geological Society, London, 136, 13-19.
22. PENN, J.S. & FRENCH, J. 1971. The Malvern Hills. Geologists' Association, Guides, 4.
23. PHARAOH, T.C. & GIBBONS, W. 1994. Precambrian rocks in England and Wales south of the Menai Strait Fault System. In: GIBBONS. W. & HARRIS, A.L. (eds) A Revised Correlation of Precambrian Rocks in the British Isles. Special Reports of the Geological Society, London, 22, 85-97.
24. _. WEBB, P.C., THORPE, R.S. & BECKINSALE, R.D. 1987. Geochemical evidence for the tectonic setting of late Proterozoic volcanic suites in central England. In: PHARAOH, T.C., BECKINSALE, R.D. & RICKARD, D. (eds) Geochemistry and Mineralization of Proterozoic Volcanic Suites. Geological Society of London Special Publications, 33, 541-552.
25. PHIPPS, C.B. & REEVE. F.A.E. 1967. Stratigraphy and geological history of the Malverns, Abberley and Ledbury Hills. Geological Journal, 5, 339-368.
26. ROBBINS, C.S. 1972. Radiogenic argon diffusion in muscovite under hydrothermal conditions. MSc thesis, Brown University, Providence, Rhode Island.
27. RUTLEY, F. 1887. On the rocks of the Malvern Hills. Quarterly Journal of the Geological Society of London, 43, 481-514.
28. 39Ar dating standard, MMhb-1. Chemical Geology, 66, 27-34.
29. SCHEUBER, E. & REUTTER, K.J. 1992. Magmatic arc tectonics in the Central Andes between 21 and 25 S. Tectonophysics, 205, 127-140.
30. 3+ contents in amphiboles. Computers & Geosciences, 10, 317-325.
31. SWINDEN, S. & HUNT, P.A. 1991. A U-Pb age from the Connaigre Bay Group, southwestern Avalon Zone, Newfoundland: implications for regional correlations and metallogenesis. in: Radiometrie Age and Isotopic Studies: Report 4. Geological Survey of Canada, Paper 90-2, 3-10.
32. THORPE, R.S. 1972. Possible subduction origin for two Precambrian calc-alkaline plutonic complexes in Southern Britain. Geological Society of America Bulletin, 83, 3663-3668.
33. _ 1987. Pseudotachylite from a Precambrian shear zone in the Malvern Hills. Proceedings of the Geologists' Association, 98, 205-210.
34. _, BECKINSALE, R.D., PATCHETT, P.J., PIPER, J.D.A., DAVIES, G.R. & EVANS, J.A. 1984. Crustal growth and late Precambrian-early Palaeozoic plate tectonic evolution of England and Wales. Journal of the Geological Society, London, 141, 521-536.
35. TUCKER, R.D. & PHARAOH, T.C. 1991. U-Pb zircon ages for Late Precambrian igneous rocks in southern Britain. Journal of the Geological Society, London, 148, 435-443.
36. TULLIS, J. & YUND, R.A. 1987. Transition from cataclastic flow to dislocation creep of feldspar: Mechanisms and microstructures. Geology, 15, 606-609.
37. WORSSAM, B.C., ELLISON, R.A. & MOORLOCK, B.S.P. 1989. Geology of the country around Tewkesbury. Memoirs of the British Geological Survey, Sheet 216 (England and Wales).
38. YARDLEY, B.W.D. 1989. An Introduction to Metamorphic Petrology. Wiley and Sons, New York.
39. YORK, D. 1969. Least squares fitting of a straight line with correlated errors. Earth and Planetary Science Letters, 5, 320-324.