Hostname: page-component-78c5997874-xbtfd Total loading time: 0 Render date: 2024-11-06T12:04:14.117Z Has data issue: false hasContentIssue false

XIV.—The Tertiary Dolerite Plugs of North-East Ireland—A Survey of their Geology and Geochemistry*

Published online by Cambridge University Press:  06 July 2012

E. M. Patterson
Affiliation:
West Kilbride, Ayrshire
D. J. Swaine
Affiliation:
Department of Spectro-chemistry, The Macaulay Institute for Soil Research, Aberdeen.

Synopsis

A Summary is given of the field relations, geographical distribution and petrography of twenty-nine dolerite plugs associated with the Tertiary lava plateau of north-east Ireland. All but two of the plugs are composed of olivine dolerite. The exceptions are a pyroxene-rich dolerite and a tholeiitic type containing abundant chlorophæite. Trace-element determinations have been made on specimens from thirteen of the plugs.

Slight but definite chemical differences are shown to exist between the olivine-dolerites and the average Tertiary olivine-basalt lava of the area. The petrogenetic relationships of the two are briefly considered.

Type
Research Article
Copyright
Copyright © Royal Society of Edinburgh 1958

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

References to Literature

Bailey, E. B. et al. , 1924. “Tertiary and post-Tertiary geology of Mull, Loch Aline and Oban”, Mem. Geol. Surv. U.K.Google Scholar
Charlesworth, J. K., 1935. “The geology of north-east Ireland”, Proc. Geol. Ass. Lond., 46, 441486.CrossRefGoogle Scholar
Cole, G. A. J. et al. , 1912. “The Interbasaltic Rocks of north-east Ireland”, Mem. Geol. Surv. U.K.Google Scholar
Dawson, J. 1951. “The Brockley dolerite plug and the Church Bay volcanic vent, Rathlin Island, County Antrim”, Irish Nat. J., 10, 157163.Google Scholar
Egan, F. W., 1873. Explanatory Memoir to accompany Sheet 47 of the Maps, Mem. Geol. Surv. U.K.Google Scholar
Geikie, A., 1897. The Ancient Volcanoes of Great Britain, 2, London.CrossRefGoogle Scholar
Harris, N., 1936. “A petrological study of the Portrush Sill and its veins”, Proc. R. Irish Acad., 43B, 95134.Google Scholar
Holmes, A., 1936. “A record of new analyses of Tertiary igneous rocks”, Proc. R. Irish Acad., 43B, 8994.Google Scholar
Hull, E., 1876. Explanatory Memoir to accompany Sheets 21, 28 and 29 (part) of the Maps, Mem. Geol. Surv. U.K.Google Scholar
Lamplugh, G. W. et al. , 1904. “Geology of the country around Belfast”, Mem. Geol. Surv. U.K.Google Scholar
Mitchell, R. L., 1948. “The spectrographic analysis of soils, plants and related materials”, Tech. Commun. Bur. Soil Sci., Harpenden, No. 44, 1183.Google Scholar
Nolan, J., and Egan, F. W., 1885. “The country around Limavady”, Explanatory Memoir to accompany Sheet 12 and part of Sheet 6 of the Maps, Mem. Geol. Surv. U.K.Google Scholar
Patterson, E. M., 1944. “The olivine-gabbro of Ardtrea, County Tyrone”, Irish Nat. J., 8, 171176.Google Scholar
Patterson, E. M., 1950. “Evidence of fissure eruption in the Tertiary Lava Plateau of north-east Ireland”, Geol. Mag., 87, 4552.CrossRefGoogle Scholar
Patterson, E. M., 1951. “Notes on three Tertiary dolerites from Counties Down and Antrim”, Irish Nat. J., 10, 177181.Google Scholar
Patterson, E. M., 1952. “A petrochemical study of the Tertiary lavas of north-east Ireland”, Geochim. et Cosmoch. Acta, 2, 283299.CrossRefGoogle Scholar
Patterson, E. M., 1955. “The Tertiary lava succession in the northern part of the Antrim Plateau”, Proc. R. Irish Acad., 57B, 79122.Google Scholar
Patterson, E. M., and Swaine, D. J., 1955. “A petrochemical study of Tertiary tholeiitic basalts: The Middle Lavas of the Antrim Plateau”, Geochim. et Cosmoch. Acta, 8, 173181.CrossRefGoogle Scholar
Rankama, K., and Sahama, T. G., 1950. Geochemistry. Chicago.Google Scholar
Reynolds, D. L., 1940. “Contact metamorphism by a Tertiary dyke at Waterfoot, County Antrim”, Geol. Mag., 77, 461469.CrossRefGoogle Scholar
Richey, J. E., 1937. “Variations in the amount of apatite in British Tertiary igneous rocks”, Summ. Progr. Geol. Surv. Lond., 1935, II, 4652.Google Scholar
Richey, J. E., and Thomas, H. H., 1930. “The geology of Ardnamurchan, north-west Mull and Coll”, Mem. Geol. Surv. U.K.Google Scholar
Richey, J. E., and Thomas, H. H, 1932. “The Tertiary Ring Complex of Slieve Gullion (Ireland)”, Quart. J. Geol. Soc. Lond., 88, 776849.CrossRefGoogle Scholar
Symes, R. G., 1886. Explanatory Memoir to accompany Sheet 20 of the Maps, Mem. Geol.Surv. U.K.Google Scholar
Symes, R. G., Egan, F. W., and McHenry, A., 1888. Explanatory Memoir to accompany Sheets 7 and 8 of the Maps, Mem. Geol. Surv. U.K.Google Scholar
Symes, R. G., and McHenry, A., 1886. Explanatory Memoir to accompany Sheet 14 of the Maps, Mem. Geol. Surv. U.K.Google Scholar
Tilley, C. E., and Harwood, H. F., 1931. “The dolerite-chalk contact of Scawt Hill, County Antrim”, Miner. Mag., 22, 439468.Google Scholar
Tomkeieff, S. I., 1935 a. “Differentiation in basalt lava, Island Magee, County Antrim”, Geol. Mag., 71, 501512.CrossRefGoogle Scholar
Tomkeieff, S. I., 1935 b. “The dolerite plug at Ballygalley Head, County Antrim”, Irish Nat. J., 5, 252257.Google Scholar
Tomkeieff, S. I., 1940 a. “The basalt lavas of the Giant's Causeway district of Northern Ireland”, Bull. Volcan., (II), 6, 89143.CrossRefGoogle Scholar
Tomkeieff, S. I., 1940 b. “The dolerite plugs of Tiveragh and Tievebulliagh near Cushendall, County Antrim, with a note on Buchite”, Geol. Mag., 77, 5464.CrossRefGoogle Scholar
Tomkeieff, S. I., and Marshall, C. E., 1935. “The Mourne Dyke Swarm”, Quart. J. Geol. Soc. Lond., 91, 251292.CrossRefGoogle Scholar
Tomkeieff, S. I., Marshall, C. E., 1940. “The Killough-Ardglass Dyke Swarm”, Quart. J. Geol. Soc. Lond., 96, 321338.CrossRefGoogle Scholar
Tomkeieff, S. I., and Patterson, E. M., 1947. “The Tertiary igneous rocks in the neighbourhood of Ballintoy, County Antrim. Part I, The Knocksoghy Sill”, Irish Nat. J., 9, 8996.Google Scholar
Tomkeieff, S. I.,Patterson, E. M., 1948. “The Tertiary igneous rocks in the neighbourhood of Ballintoy, County Antrim. Part II, The Carrickarade Volcano”, Irish Nat. J., 9, 203212.Google Scholar
Tomkeieff, S. I., Patterson, E. M.,1953. “The Tertiary igneous rocks in the neighbourhood of Ballintoy, County Antrim. Part III, The coast near Ballintoy Harbour”, Irish Nat. J., 11, 3545.Google Scholar
Wager, L. R., 1956. “A chemical definition of fractionation stages as a basis for comparison of Hawaiian, Hebridean, and other basic lavas”, Geochim. et Cosmoch. Acta, 9, 217248.CrossRefGoogle Scholar
Wager, L. R., and Deer, W. A., 1939. “Geological investigations in East Greenland. Part III, The petrology of the Skaergaard Intrusion, Kangerdlugssuaq, East Greenland”, Medd. Gronland, 105, No. 4, 1352.Google Scholar
Wager, L. R., and Mitchell, R. L., 1951. “The distribution of trace elements during strong fractionation of basic magma—a further study of the Skaergaard Intrusion, East Greenland”, Geochim. et Cosmoch. Acta, 1, 129208.CrossRefGoogle Scholar
Wager, L. R., Mitchell, R. L., 1953. “Trace elements in a suite of Hawaiian lavas”, Geochim. et Cosmoch. Acta, 3, 217223.CrossRefGoogle Scholar
Walker, G. P. L., 1949. Unpublished Thesis for the Degree of M.Sc. Queen's University, Belfast.Google Scholar