posted on 2018-04-19, 10:23authored byJoanna Kostylew, Jan A. Zalasiewicz, Ryszard Kryza
The tectonized and metamorphosed mudrocks within the Variscan accretionary prism of the Kaczawa Mountains in SW Poland comprise sedimentary mélanges together with more coherent stratigraphic units; some represent large olistoliths deposited in a submarine trench. We infer a trend of progressive near-surface stratal disruption in mud-dominated deposits due to dewatering that forms a continuum with subduction-related tectonic structures imposed on unconsolidated sediment during deeper burial. The assemblage of characters suggests that an accretionary prism environment can influence, and leave characteristic traces of, the total burial history of a trench succession.
Funding
The study was supported by the Polish
National Research Committee KBN and the National Science
Centre of Poland (JK and RK, grant number 3 P04D 045 25
and N N307 062036) and by the University of Wrocław,
Poland (RK and JK, grant number 1017/S/ING/10-II).
History
Citation
Geological Magazine, 2017, 154 (3), pp. 651-660 (10)
Author affiliation
/Organisation/COLLEGE OF SCIENCE AND ENGINEERING/School of Geography, Geology and the Environment