Isotope geochemistry (O, H and Sr) of Late Cretaceous volcanic rocks, Haţeg Basin, South Carpathians, Romania-Reference-Cited by-同舟云学术

Isotope geochemistry (O, H and Sr) of Late Cretaceous volcanic rocks, Haţeg Basin, South Carpathians, Romania

Published:2013 Issue:1 Volume:382 Page:203-211
ISSN:0305-8719
Container-title:Geological Society, London, Special Publications
language:en
Short-container-title:Geological Society, London, Special Publications

Author:

Bojar Ana-Voica¹²,Dodd Justin³,Seghedi Ioan⁴

Affiliation:

1. Department of Geology, Salzburg University, Hellbrunnerstrasse 34, Salzburg A-5020, Austria

2. Department of Mineralogy, Studienzentrum Naturkunde, Universalmuseum Joanneum, Graz A-8045, Austria

3. Department of Geology and Environmental Geosciences, Northern Illinois University, DeKalb, IL 60115, USA

4. Institute of Geodynamics, Romanian Academy, Jean-Louis Calderon 19-21, Bucharest 020032, Romania

Abstract

AbstractOxygen and strontium isotopic ratios belonging to Late Cretaceous volcaniclastic deposits of the Haţeg Basin, South Carpathians, are documented here for the first time. The analyses performed on mineral concentrates suggest that associated magmas account for an assimilation–fractional crystallization trend with 87Sr/86Sr ratios of between 0.705 and 0.706, and a large range of δ18O up to 16‰, and a trend with higher 87Sr/86Sr ratios (0.707–0.708) but lower δ18O (8.2–7.9‰) values for leucrocratic minerals, such as plagioclase and sanidine. The Sr–O modelling of the main trend, using mafic minerals (pyroxene and amphibole), indicate 1–3% source contamination associated with up to 20% crustal assimilation. Hydrogen isotopic composition of amphiboles, biotite and groundmass do not confirm any significant involvement of an external fluid, either hydrothermal or diagenetic.

Publisher

Geological Society of London

Subject

Geology,Ocean Engineering,Water Science and Technology

Reference47 articles.

1. Non-marine uppermost Cretceous deposits from the Stei-Densuş Region (Haţeg Basin): sketch for a facies model;Anastasiu;Revue de Geologie Academia Romana,1989

2. Spatial distribution and structural images of banatites from Romania deduced from gravity and magnetic data;Andrei;Revue Roumaine de Géologie, Géophysique et Géographie,1989

3. Correlation palinologique du Crétacé terminal du sud-est des Monts Metaliferi et des Depressions de Haţeg et de Rusca Montană (Palinological correlation of the Upper Cretaceous from the south-east Metaliferi Mountains and Haţeg basin);Antonescu;Annales de l'Institut de Géologie et Géophysique,1983

4. Petrographic and geochemical interpretation of the Late Cretaceous volcaniclastic deposits from the Hateg Basin

5. Granitic pebbles in Upper Cretaceous red conglomerates of the Haţeg Basin (Southern Carpathians, Romania): geochemistry and provenance as clues in a tectonic controversy;Berza;Geologica Carpathica,2004

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