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Orthobreccia sample
Orthobreccia sample
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Conceptually similar
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Orthobreccia sample
Similarly to conglomerate, breccias are siliciclastic rocks comprised of a framework of clasts (>2 mm)within a finer-grained matrix. Conglomerates and breccias are distinguished apart based on the angularity/roundness of the clasts in which breccias are characteristically angular with much sharper edges rather than smooth like that of a conglomerate (see Conglomerates samples). This sample can be classified as an oligomictic orthobreccia due to its grain-supported matrix of angular, pebble-sized (4-64 mm in diameter) chert clasts within a very fine-grained mud infill. The red colour of the matrix may be due to the presence of ferric oxides and could be indicative of depositional or transport environments.
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Date
07/27/2017
Creator
Dolphin, Glenn
Digital Publisher
Calgary : University of Calgary
Location
Country
Canada
Municipality
City of Calgary
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Permitted uses are outlined in License and Usage Rights. Usage Restrictions can only be waived by the copyright holder. Add to cart and make a request if you have any questions.
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Conditions of Use
https://libanswers.ucalgary.ca/faq/199047
License URL
https://creativecommons.org/licenses/by/4.0/
License
CC BY 4.0
Attribution
Attribution
Orthobreccia sample, 2017, (CU123402) by Dolphin, Glenn, is used under CC BY 4.0. Courtesy of Geoscience Images Collection, Libraries and Cultural Resources Digital Collections, University of Calgary.