Open AccessMineralogy and deformation structures in components of clastic sediments from the Morasko meteorite lake (Poland)
Author(s) -
Agata Duczmal-Czernikiewicz,
Adam Choiński,
Mariusz Ptak,
Andrzej Muszyński
Publication year - 2018
Publication title -
bulletin of geography. physical geography series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.149
H-Index - 2
eISSN - 2300-8490
pISSN - 2080-7686
DOI - 10.2478/bgeo-2018-0018
Subject(s) - meteorite , geology , geochemistry , clastic rock , fragmentation (computing) , mineralogy , clay minerals , mineral , sedimentary rock , astrobiology , materials science , metallurgy , physics , computer science , operating system
The paper presents a mineralogical analysis of sediments of the biggest lake in the Morasko Meteorite Reserve (Poland). The lake is filled by phytogenic sediments at the top, while at the bottom there are Neogene clays. The main components are: clay minerals in fine fraction and quartz and feldspars in coarse sandy fractions. The presence of disturbed ferrous zones suggests the existence of a dynamic factor that caused deformations in the sediments. Cavities, crevices, cracks, and traces of parching or fragmentation of mineral material can be interpreted as deformations related to the impact of meteorite fragments in non-consolidated soft sediments in the Morasko meteorite nature reserve. Meteorite fragments that left numerous deformed structures were most probably consituted meteorite debris that originated from the fragmentation of the meteorite before its impact.