DBPapers
DOI:10.5593/sgem2017/11/S01.060

RARE EARTH ELEMENTS IN THE ROCK SEQUENCE FROM LOWER TO MIDDLE DEVONIAN IN THE HOLY CROSS MOUNTAINS, POLAND

A. Musial, E. Sermet, M. Niec
Saturday 9 September 2017 by Libadmin2017

References: 17th International Multidisciplinary Scientific GeoConference SGEM 2017, www.sgem.org, SGEM2017 Conference Proceedings, ISBN 978-619-7105-98-8 / ISSN 1314-2704, 29 June - 5 July, 2017, Vol. 17, Issue 11, 471-478 pp, DOI: 10.5593/sgem2017/11/S01.060

ABSTRACT

The Holy Cross Mountains is Paleozoic massif, 120 km long and 30 km wide is situated in the central part of Poland. It is built of Cambrian to Permian rock sequences and surrounded by Triassic to Cretaceous rocks. All over the massif Quaternary sediments form spotted cover. Paleozoic rocks are folded and dissected by transversal and longitudinal faults.
The deposits, that occur between the siliciclastic Lower Devonian and Carbonate Middle Devonian sediments are interesting due to numerous ore mineralization sites. Iron ores were mined in several places during XIX century at their outcrops. Iron sulfides and elevated content of Cu, Zn, Pb were commonly registered. However, the knowledge of this interesting deposits up to date is limited and based on borehole data. The authors have the opportunity to study them in wide artificial outcrop formed in dolomite quarry in the South Eastern part of Holy Cross Mountains. It allows to study of the mode of sedimentation processes, as well rock sampling for detailed geochemical study. The mudstone located between quartzitic sandstones and limestones and marly dolomites have elevated content of several metallic and Rare Earth Elements.

Keywords: The Holy Cross Mountains, Rare Earth Elements, Lower and Middle Devonian rocks

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