Evidence of Shock Metamorphism Effects in Suevite from the Triffa Plain in North Eastern Morocco

Autor:	Abdelkader Mokhtari
Rok vydání:	2014
Předmět:	geography Shock metamorphism geography.geographical_feature_category Clastic rock Breccia Geochemistry Mineralogy Sedimentary basin Quaternary Pebble Striation Quartz Geology
Zdroj:	Universal Journal of Applied Science. 2:77-82
ISSN:	2331-9690 2331-9674
DOI:	10.13189/ujas.2014.020402
Popis:	The Triffa plain is located in the north-eastern part of Morocco. It's considered as sedimentary basin of a Quaternary age containing a wide variety of breccias that we consider as impactites. Thereby, we have found monomict breccia and polygenic breccia. The presence of glassy clasts allows us to determine the suevite that contains many indices of shock metamorphism. The effect of the shock is observed in quartz grains that show fractures and planar deformation, the mosaicism texture and ballen-quartz. The pebble breccia shows deformations of shock such as spallation fractures and striation. However, we suggest that the sediments in the Triffa depression are mainly impact breccias.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::570ada1aeb41be2b1a23b43ce55f544b https://doi.org/10.13189/ujas.2014.020402 Zobrazit plný text záznamu