Hostname: page-component-78c5997874-g7gxr Total loading time: 0 Render date: 2024-11-08T08:29:04.616Z Has data issue: false hasContentIssue false

The geochemistry of the Devonian lavas of the northern Lorne Plateau, Scotland

Published online by Cambridge University Press:  05 July 2018

D. R. Groome
Affiliation:
Geology Department, King's College, Strand, London, WCzR 2LS
A. Hall
Affiliation:
Geology Department, King's College, Strand, London, WCzR 2LS

Summary

Chemical analyses of the Lorne volcanic rocks show that the basalts and andesites are a closely related suite of lavas, notably rich in alkalis, especially potassium. The rhyolites of the Lorne area do not appear to form a continuous series with the more basic rocks. The various lava types are compared with the plutonic rocks of the area, and a relationship is suggested between the basic lavas and appinitic intrusions. The acid lavas are not comparable to granites in the area.

The late orogenic igneous activity in this part of the Caledonides therefore appears to involve three generations of magma, produced separately but within a short time of one another. The assumption that all the late Caledonian igneous rocks of the Scottish Highlands are differentiates of a common parent magma is not justified.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1974

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

Anderson, (J. G. C.), 1935. Trans. Geol. Soc. Glasgow, 19, 225–69.Google Scholar
Anderson, (J. G. C.)1937. Quart. Journ. Geol. Soc. Lond., 93, 487–53z.Google Scholar
Bailey, (E. B.), 1958. Bull. Geol. Surv. Great Britain, 15, I-2O.Google Scholar
Bailey, (E. B.) and Mauee, (H. B.), 1960. The geology of Ben Nevis and Glen Coe and the surrounding country (explanation of sheet 53). Mere. Geol. Surv. Scotland, 2nd edn, 307 PP.Google Scholar
Bell, (K.), 1968. Bull. Geol. Soc. Amer., 19, 1167–94.Google Scholar
Bowls, (D. R.), Kinloch, (E. D.), and Wrigrrr, (A. E.), 1964. Min. Mag., 33, 963–73.Google Scholar
Bowls, (D. R.), Kinloch, (E. D.), and Wrigrrr, (A. E.), and Wright, (A. E.), 1967. Trans. Roy. Soc. Edin., 67, 109-43.Google Scholar
Carmichael, (I. S. E.), 1964. Journ. Petrol., 5, 435–60.Google Scholar
Chayes, (F.), 1964. Ibid. 5, 219-37.CrossRefGoogle Scholar
Cosgrove, (M. E.), 1972. Contr. Min. Petr., 36, 155–70.CrossRefGoogle Scholar
Dickinson, (W. R.), 1970. Rev. Geophys. Space Phys., 8, 813–60.CrossRefGoogle Scholar
Frrron, (J. G.) and Hughes, (D. J.), 1970. Earth Planet. Sci. Lett., 8, 223–8.Google Scholar
Green, (T. H.) and Ringwood, (M. E.), 1968. Contr. Min. Petr., 18, 105-62.CrossRefGoogle Scholar
Groome, (D. R.), 1972. The geochemistry of the OM Red Sandstone volcanic rocks of northern Lorne, Argyllshire. Ph.D. thesis, University of London.Google Scholar
Hall, (A.), 1966. Journ. Petrol., 7, 202-20.CrossRefGoogle Scholar
Hall, (A.), 1967. Contr. Min. Petr., 16, 156–71.CrossRefGoogle Scholar
Hall, (A.), 1972. Min. Mag., 38, 847–62.Google Scholar
Haslam, (H. W.), 1968. Journ. Petrol., 9, 84104.CrossRefGoogle Scholar
Hatch, (F. H.), Wells, (A. K.), and Wells, (M. K.), 1972. Petrology of the igneous rocks.London (Thomas Murby & Co.), 13th edn, 551 pp.Google Scholar
Hollow AY, (J. R.) and Burnham, (C. W.), 1972. Journ. Petrol., 13, 1–29.Google Scholar
Jakeg, (P.) and White, (A. J. R.), 1970. Geochimica Acta, 34, 849–56.Google Scholar
Jakeg, (P.) and White, (A. J. R.), 1972. Bull. Geol. Soc. Amer., 83, 29–40.Google Scholar
Kushiro, (I.), 1972. Journ. Petrol., 13, 311–34.CrossRefGoogle Scholar
Kynaston, (H.) and Hill, (J. B.), 1908. The geology of the country near Oban and Dalmally (explanation of sheet 45). Mem. Geol. Surv. Scotland, 184 pp.Google Scholar
Lee, (G. W.) and Bailey, (E. B.), 1925. The pre-Tertiary geology of Mull, Loch Aline, and Oban. Mem. Geol. Surv. Scotland, 140 pp.Google Scholar
Macdonald, (G. A.) and Katsura, (T.), 1964. Journ. Petrol., 5, 82–133.CrossRefGoogle Scholar
Miller, (J. A.) and Mohr, (P. A.), 1964. Geol. Journ., 1, 105–26.Google Scholar
Moorbath, (S.) and Bell, (J. D.), 1965. Journ. Petrol., 6, 36–66.CrossRefGoogle Scholar
Nockolds, (S. R.), 1941. Quart. Journ. Geol. Soc. Lond., 96 (for 1940), 451-511.Google Scholar
Nockolds, (S. R.) and Allen, (R.), 1953- Geochimica Acta, 14, 105-42.CrossRefGoogle Scholar
Nockolds, (S. R.) and Allen, (R.) and Mitchell, (R. L.), 1948. Trans. Roy. Soc. Edin., 61, 533–75.Google Scholar
Pitcher, (W. S.) and Berger, (A. R.), 1972. The geology of Donegal: a study of granite emplacement and unroofing. New York & London (Wiley-Interscience), 435 PP.Google Scholar
Platten, (I.), 1966. The petrology of some Caledonian minor intrusions in Appin, Argyllshire. Ph.D. thesis, University of London.Google Scholar
Prinz, (M.), 1968. In Basalts: the Poldervaart treatise on rocks of basaltic composition.New York (Interscience Publishers), 1, 271323.Google Scholar
Roberts, (J. L.), 1966. Geol. Journ., 5, 173–84.Google Scholar
Rosman, (K. J. R.), 1972. Geochimiea Acta, 36, 801-19.CrossRefGoogle Scholar
Taylor, (S. R.), 1969. Bull. Oregon Dept. Geol. Min. Ind., 65, 43–64.Google Scholar
Kave, (M.), White, (A. J. R.), Duncan, (A. R.), and Ewart, (A.), 1969. Geochimiea Aeta, 33, 275–86.Google Scholar
White, (A. J. R.), Ewart, (A.), and Duncan, (A. R.), 1971. Ibid. 35, 525-8.CrossRefGoogle Scholar
Turekian, (K. K.) and Kulp, (J. L.), 1956. Ibid. 10, 245-96.CrossRefGoogle Scholar
Turekian, (K. K.) and Kulp, (J. L.), and Wedepohl, (K. H.), 196I. Bull. Geol. Soe. Amer., 72, 175–92.Google Scholar
Turner, (F. J.) and Verhoogen, (J.), 1960. Igneous and metamorphiepetrology. New York (McGraw- Hill), End edn, 694 PP.Google Scholar
Ttyrrle, (O. F.) and Bowen, (N. L.), 1958. Mem. Geol. Soe. Amer., 74, 153 PP.Google Scholar
Vergara, (M. M.), 1972. Proe. Internat. Geol. Congr., 24th session, 2, 222–30.Google Scholar
Walker, (F.), 1927. Trans. Roy. Soe. Edin., 55, 147–57.Google Scholar
Walker, (G. P. L.), 1972. Contr. Min. Petr., 36, 135–46.CrossRefGoogle Scholar
Westoll, (N. D. S.) and Miller, (J. A.), 1969. Scot. Journ. Geol. 5, 1114.CrossRefGoogle Scholar
Wilshire, (H. G.), 1959. Journ. Proe. Roy. Soe. N.S.W., 93, 105-20.Google Scholar