caa a22 4500 386401470 CHVBK 20180307112200.0 cr unu---uuuuu 161130e198911 xx s 000 0 eng 10.1017/S0016756800007044 doi S0016756800007044 pii (NATIONALLICENCE)cambridge-10.1017/S0016756800007044 Isotopic U-Pb ages of zircon and monazite from the Leinster Granite, southeast Ireland [Elektronische Daten] A more precise age for the synkinematic emplacement of the large S-type Leinster batholith (southeast Ireland) has been obtained by U-Pb dating of zircon and monazite separates from the two main granite varieties of the Northern Pluton. A concordant age of 405±2 Ma derived from monazite is considered to reflect both the age of intrusion and the main regional deformation event (D1) in southeast Ireland. The monazite age is in good agreement with an earlier, less precise whole-rock Rb-Sr isochron determination. The zircon data indicate recent Pb loss effects and the existence of a small component of inherited radiogenic Pb derived from a crustal precursor during the generation of the batholith. Copyright © Cambridge University Press 1989 O'Connor P. J. Geological Survey of Ireland, Beggars Bush, Haddington Road, Dublin 4, Ireland Aftalion M. Scottish Universities Research & Reactor Centre, East Kilbride, Glasgow G75 0QU, U.K. Kennan P. S. Department of Geology, University College Belfield, Dublin 4, Ireland Geological Magazine Cambridge University Press 126/6(1989-11), 725-728 0016-7568 126:6<725 1989 126 GEO https://doi.org/10.1017/S0016756800007044 text/html Onlinezugriff via DOI 1 article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0016756800007044 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- O'Connor P. J. Geological Survey of Ireland, Beggars Bush, Haddington Road, Dublin 4, Ireland NATIONALLICENCE 700 1- Aftalion M. Scottish Universities Research & Reactor Centre, East Kilbride, Glasgow G75 0QU, U.K NATIONALLICENCE 700 1- Kennan P. S. Department of Geology, University College Belfield, Dublin 4, Ireland NATIONALLICENCE 773 0- Geological Magazine Cambridge University Press 126/6(1989-11), 725-728 0016-7568 126:6<725 1989 126 GEO CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge