Hostname: page-component-8448b6f56d-c47g7 Total loading time: 0 Render date: 2024-04-18T01:06:28.756Z Has data issue: false hasContentIssue false

Constraints on genetic models for the Ballantrae complex, SW Scotland

Published online by Cambridge University Press:  03 November 2011

P. Stone
Affiliation:
British Geological Survey, Murchison House, West Mains Road, Edinburgh EH9 3LA, Scotland.

Abstract

The distribution of Arenig graptolite faunas and zones of differing metamorphic fades help to establish a polyphase imbrication history for the complex. A further complication is introduced by the presence within the imbricate stack of lava sequences of comparable age but with contrasting geochemical signatures of island-arc and oceanic island basalts, and oceanic island sequences of markedly different Arenig ages. Strike-slip mechanisms appear the most likely means of introducing such a disparate assortment of elements into the Ballantrae complex and an origin in a continental margin transform zone is preferred.

Type
Midland Valley
Copyright
Copyright © Royal Society of Edinburgh 1984

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Bluck, B. J. 1982. Hyalotuff deltaic deposits in the Ballantrae ophiolite of SW Scotland: evidence for crustal position of the lava sequence. TRANS R SOC EDINBURGH EARTH SCI 72, 217–28.CrossRefGoogle Scholar
Bluck, B. J., Halliday, A. N., Aftalion, M. & Macintyre, R. M. 1980. Age and origin of Ballantrae ophiolite and its significance to the Caledonian orogeny and Ordovician time scale. GEOLOGY 8, 492–5.2.0.CO;2>CrossRefGoogle Scholar
Carter, R. M. & Norris, R. J. 1976. The Cainozoic history of southern New Zealand; an accord between geological observation and plate tectonic production. EARTH PLANET SCI LETT 31, 8594.CrossRefGoogle Scholar
Hamilton, P. J., Bluck, B. J. & Halliday, A. N. 1984. Sm–Nd ages from the Ballantrae complex, SW Scotland. TRANS R SOC EDINBURGH EARTH SCI 75, 83–7.CrossRefGoogle Scholar
Holub, F. V., Klápová, H., Bluck, B. J. & Bowes, D. R. 1984. Petrology and geochemistry of post-obduction dykes of the Ballantrae complex, SW Scotland. TRANS R SOC EDINBURGH EARTH SCI 75 211–23.CrossRefGoogle Scholar
Jelínek, E., Souček, J., Randa, Z., Jakeš, P., Bluck, B. J. & Bowes, D. R. 1984. Geochemistry of peridotites, gabbros and trondhjemites of the Ballantrae complex, SW Scotland. TRANS R SOC EDINBURGH EARTH SCI 75, 193209.CrossRefGoogle Scholar
Lewis, A. D. & Bloxam, T. W. 1977. Petrotectonic environments of the Girvan-Ballantrae lavas from rare-earth element distributions. SCOTT J GEOL 13, 211–22.CrossRefGoogle Scholar
Oliver, G. J. H., Smellie, J. L., Thomas, L. J., Casey, D. M., Kemp, A. E. S., Evans, L. J., Baldwin, J. R. and Hepworth, B. C. 1984. Early Palaeozoic metamorphic history of the Midland Valley, Southern Uplands-Longford-Down massif, and the Lake District, British Isles. TRANS R SOC EDINBURGH EARTH SCI 75, 245–58.CrossRefGoogle Scholar
Smellie, J. L. 1984a. Metamorphism of the Ballantrae igneous complex: A preliminary survey. REP BR GEOL SURV 16, 1317.Google Scholar
Smellie, J. L. 1984b. Accretionary lapilli and highly vesiculated pumice in the Ballantrae ophiolite complex: ash-fall products of subaerial eruptions. REP BR GEOL SURV 16, 3640.Google Scholar
Smellie, J. L. & Stone, P. 1984. “Eclogite” in the Ballantrae complex: a garnet-clinopyroxene segregation in mantle harzburgite? SCOTT J GEOL 20 (in press).CrossRefGoogle Scholar
Spray, J. G. & Williams, G. D. 1980. The subophiolite metamorphic rocks of the Ballantrae Igneous Complex, S.W. Scotland. J GEOL SOC LONDON 137, 359–68.CrossRefGoogle Scholar
Stone, P., Lambert, J. L. M., Carruthers, R. M. & Smellie, J. L. 1984. Concealed ultramafic bodies in the Ballantrae complex, south-west Scotland: borehole results. REP BR GEOL SURV 16, 41–5.Google Scholar
Stone, P. & Rushton, A. W. A. 1983. Graptolite faunas from the Ballantrae ophiolite complex and their structural implications. SCOTT J GEOL 19, 297310.CrossRefGoogle Scholar
Stone, P. & Strachan, I. 1981. A fossiliferous borehole section within the Ballantrae ophiolite. NATURE 293, 455–7.CrossRefGoogle Scholar
Thirlwall, M. F. & Bluck, B. J. 1984. Sr-Nd isotope and geochemical evidence that the Ballantrae “ophiolite”, SW Scotland, is polygenetic. In Gass, I. G., Lippard, S. J. & Shelton, A. W. (eds) Ophiolites and oceanic lithosphère, 215–30. SPEC PUB GEOL SOC LONDON 13.Google Scholar
Treloar, P. J., Bluck, B. J., Bowes, D. R. & Dudek, A. 1980. Hornblende-garnet metapyroxenite beneath serpentinite in the Ballantrae complex of SW Scotland and its bearing on the depth provenance of obducted oceanic lithosphre. TRANS R SOC EDINBURGH EARTH SCI 71, 201–12.CrossRefGoogle Scholar
Wilkinson, J. M. & Cann, J. R. 1974. Trace elements and tectonic relationships of basaltic rocks in the Ballantrae igneous complex, Ayrshire. GEOL MAG 111, 3541.CrossRefGoogle Scholar
Woodcock, N. H. & Robertson, A. H. F. 1982. Wrench and thrust tectonics along a Mesozoic-Cenozoic continental margin: Antalya Complex, SW Turkey. J GEOL SOC LONDON 139, 147–63.CrossRefGoogle Scholar