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ash breccia bomb or block tephra

http://resource.geosciml.org/classifier/cgi/lithology/ash_breccia_bomb_or_block_tephra

definition Tephra in which more than 25 percent of particles are greater than 64 mm in largest dimension. Includes ash breccia, bomb tephra and block tephra of Gillespie and Styles (1999) more like this
source Schmid 1981; LeMaitre et al. 2002 more like this
type
Resource original
Concept original
broader
http://resource.geosciml.org/classifier/cgi/lithology/tephra original
narrower ash_breccia_bomb_or_block_tephra original
in scheme simplelithology original
is primary topic of ash_breccia_bomb_or_block_tephra