
1) Sedimentary rock
Found on
https://www.crosswordclues.com/clue/olistostrome

An olistostrome is a sedimentary deposit composed of a chaotic mass of heterogeneous material, such as blocks and mud, known as olistoliths, that accumulates as a semifluid body by submarine gravity sliding or slumping of the unconsolidated sediments. It is a mappable stratigraphic unit which lacks true bedding, but is intercalated amongst normal ...
Found on
http://en.wikipedia.org/wiki/Olistostrome
No exact match found.