New isotopic age determinations for the Torridonian, NW Scotland

Journal of the Geological Society

Volumn 153, Issue 6, 1996, Pages 955-964

  Turnbull, Matthew J M ^a   Whitehouse, Martin J ^a,b   Moorbath, Stephen ^a  

^a UNIVERSITY OF OXFORD   (United Kingdom)

^b SWEDISH MUSEUM OF NATURAL HISTORY   (Sweden)

Author keywords

Absolute age; Late diagenesis; Proterozoic; Scotland; Torridonian

Indexed keywords

DIAGENESIS; LEAD/LEAD DATING; PROTEROZOIC; RUBIDIUM/STRONTIUM DATING; TORRIDONIAN;

UK, SCOTLAND;

EID: 0030429682     PISSN: 00167649     EISSN: None     Source Type: Journal    
DOI: 10.1144/gsjgs.153.6.0955     Document Type: Article

References (38)

1. CLAUER, N. & CHAUDHURI, S. 1995. Clays in crustal environments; Isotope dating and tracing. Springer-Verlag.
2. CLIff, R. A. & REX, D. C. 1989. Evidence for a 'Grenville' event in the Lewisian of the northern Outer Hebrides. Journal of the Geological Society, London, 146, 921-924.
3. DAVISON, S. & HAMBREY, M. J. 1996. Indications of glaciation at the base of the Proterozoic Stoer Group (Torridonian), NW Scotland. Journal of the Geological Society, London, 153, 139-149.
4. EVANS, J. A. 1996. Dating the transition of smectite to illite in Palaeozoic mudrocks using the Rb-Sr whole-rock technique. Journal of the Geological Society, London, 153, 101-108.
5. HALLIDAY, A. N., GRAHAM, C. M., AFTALION, M. & DYMOKE, P. 1989. The depositional age of the Dalradian Supergroup: U-Pb and Sm-Nd isotopic studies of the Tayvallich Volcanics, Scotland. Journal of the Geological Society, London, 146, 3-6.
6. JAHN, B.-M. & CUVELLIER, H. 1994. Pb-Pb and U-Pb geochronology of carbonate rocks: an assessment. Chemical Geology (Isotope Geoscience Section), 115, 125-151.
7. JOHNSTONE, G. S. & MYKURA, W. 1989. British Regional Geology. The Northern Highlands of Scotland. 4th edn., HMSO, London.
8. LUDWIG, K. R. 1991. ISOPLOT: A Plotting and Regression Program for Radiogenic-Isotope Data. Version 2.71. United States Geological Survey Open File Report 91-445.
9. 144Nd: differential evolution of the lunar crust and mantle. Earth and Planetary Science Letters, 39, 349-357.
10. MOORBATH, S. 1969. Evidence for the age of deposition of the Torridonian sediments of north-west Scotland. Scottish Journal of Geology, 5, 154-170.
11. _ & PARK, R. G. 1971. The Lewisian chronology of the southern region of the Scottish mainland. Scottish Journal of Geology, 8, 51-74.
12. _, STEWART, A. D., LAWSON, D. E. & WILLIAMS, G. E. 1967. Geochronological studies on the Torridonian sediments of north-west Scotland. Scottish Journal of Geology, 3, 389-412.
13. MORAD, S. 1986. Albitization of K-feldspar grains in Proterozoic arkoses and greywackes from southern Sweden. Neues Jahrbuch für Mineralogie, Monatshefte, 1986, 145-146.
14. NICHOLSON, P. G. 1993. A basin reappraisal of the Proterozoic Torridon Group, Northwest Scotland. In: FROSTICK, L. E. & STEEL, R. J. (eds) Tectonic controls and signatures in sedimentary successions. Special Publications of the International Association of Sedimentologists, 20.
15. PANKHURST, R. J. 1969. Strontium isotope studies related to petrogenesis in the Caledonian basic igneous province of NE Scotland. Journal of Petrology, 10, 115-143.
16. 86Sr ratios of some standard rocks and evaluation of x-ray fluorescence spectrometry in Rb-Sr geochronology. Chemical Geology, 12, 127-136.
17. PARK, R. G., CLIFF, R. A., FETTES, D. J. & STEWART, A. D. 1994. Precambrian rocks in north-west Scotland west of the Moine Thrust: the Lewisian Complex and the Torridonian. In: GIBBONS, W. & HARRIS, A. L. (eds) A revised correlation of Precambrian rocks in the rocks in the British Isles. Geological Society, London, Special Reports, 22, 6-22.
18. PEACH, B. N., HORNE, J., GUNN, W., CLOUGH, C. T. & HINXMAN, L. W. 1907. The geological structure of the North-West Highlands of Scotland. Memoirs of the Geological Survey of Great Britain.
19. PEAT, C. & DIVER, W. 1982. First signs of life on Earth. New Scientist, 95, 776-781.
20. ROGERS, G. & PANKHURST, R.J. 1993. Unravelling dates through the ages: geochronology of the Scottish metamorphic complexes. Journal of the Geological Society, London, 150, 447-464.
21. _, CROUGH, T. E., BLUCK, B. J., & KWOK, Y. Y. 1990. Provenance ages of the Torridonian sandstone of NW Scotland using single grain U-Pb zircon analysis. Geological Society of Australia Abstracts, 27, 84.
22. SAIGAL, G. C., MORAD, S., BJØRLYKKE, K., EGEBURG, P. K. & AAGAARD, P. 1988. Diagenetic albitization of detrilal K-feldspar in Jurassic, Lower Cretaceous, and Tertiary clastic reservoir rocks from offshore Norway; I. Textures and origin. Journal of Sedimentary Petrology, 58, 1003-1013.
23. SMITH, R. L., STEARN, J. E. F. & PIPER, J. D. A. 1983. Palaeomagnetic studies of the Torridonian sediments, NW Scotland. Scottish Journal of Geology, 19, 29-45.
24. SOPER, N.J. & BARBER, A.J. 1979. Proterozoic folds on the Northwest Caledonian Foreland. Scottish Journal of Geology, 15, 1-11.
25. _ & ENGLAND, R. W. 1995. Vendian and Riphean rifting in NW Scotland. Journal of the Geological Society, London, 152, 11-14.
26. STEIGER, R. H. & JÄGER, E. 1977. Subcommission on geochronology: convention on the use of decay constants in geo- and cosmochronology. Earth and Planetary Science Letters, 36, 359-362.
27. STEWART, A. D. 1982. Late Proterozoic rifting in NW Scotland: the genesis of the 'Torridonian'. Journal of the Geological Society, London, 139, 413-420.
28. _ 1990. Geochemistry, provenance and climate of the Upper Proterozoic Stoer Group in Scotland. Scottish Journal of Geology, 26, 89-97.
29. _ 1991a. Torridonian. In: CRAIG, G. Y. (ed.) Geology of Scotland, 3rd edn. Geological Society, London, 66-85.
30. _ 1991b. Itinerary XI: Stoer and Torridon Groups. Enard Bay and Achiltibuie. In: HAMBREY, M. J., FAIRCHILD, I. J., GLOVER, B. W., STEWART, A. D., TREAGUS, J. E. & WINCHESTER, J. A. (eds) The Late Precambrian Geology of the Scottish Highlands and Islands. Geologists' Association Guide, 44.
31. _ & DONNELLAN, N. C. B. 1992. Geochemistry and provenance of red sandstones in the Upper Proterozoic Torridon Group in Scotland. Scottish Journal of Geology, 28, 143-153.
32. _ & IRVING, E. 1974. Palaeomagnetism of Precambrian sedimentary rocks from NW Scotland and the apparent polar wandering path of Laurentia. Geophysical Journal of the Royal Astronomical Society, 37, 51-72.
33. _ & PARKER, A. 1979. Palaeosalinity and environmental interpretation of red beds from the late Precambrian ('Torridonian') of Scotland. Sedimentary Geology, 22, 229-241.
34. TOLLO, R. P. & HUTSON, F. E. 1996. 700Ma rift event in the Blue Ridge province of Virgina: A unique time constraint on pre-Iapetan rifting of Laurentia. Geology, 24, 59-62.
35. TORSVIK, T. H. & STURT, B. A. 1987. On the origin and stability of remanance and the magnetic fabric of the Torridonian red beds, NW Scotland. Scottish Journal of Geology, 23, 23-38.
36. TUCKER, R. D. & MCKERROW, W. S. 1995. Early Paleozoic chronology: a review in light of new U-Pb zircon ages from Newfoundland and Britain. Canadian Journal of Earth Sciences, 32, 368-379.
37. UPFOLD, R. L. 1984. Tufted microbial (cyanobacterial) mats from the Proterozoic Stoer Group, Scotland. Geological Magazine, 121, 351-355.
38. WINDLEY, B. F. 1995. The Evolving Continents. John Wiley & Sons.