Isotopic composition of ore lead in the Pb-Zn deposits of the Dorotea district, central Swedish Caledonides
作者:
Peter Schweda,
Åke Johansson,
期刊:
Geologiska Föreningen i Stockholm Förhandlingar
(Taylor Available online 1984)
卷期:
Volume 106,
issue 1
页码: 33-39
ISSN:0016-786X
年代: 1984
DOI:10.1080/11035898409454602
出版商: Taylor & Francis Group
关键词: Lead isotopes;lead-zinc ore;Swedish Caledonides;Dorotea;Sweden;N6420 N6426 E1601 E1559
数据来源: Taylor
摘要:
Galena in drill core samples from sandstone-lead deposits in the Dorotea district in the Caledonian Front was analysed for its lead isotope composition. Six samples were taken from Bellvikserg and three from the minor deposit of Ormsjö. The composition of all samples was highly radiogenic with206Pb/204Pb-ratios between 22 and 23, and207Pb/204Pb-ratios in the range 16.0 to 16.2. Plotted on a207Pb/204Pb versus206Pb/204Pb diagram, the Dorotea lead follows a linear trend together with lead from Laisvall and Vassbo, suggesting their radiogenic component to be derived from source rocks of Svecokarelian age.
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