DETRITAL/CLASTIC Flashcards
sed rock and grabau name of GRAVEL
sed rock- gravelstone/conglomerate
grabau- rudite
sed rock and grabau name of SAND
sed rock- sandstone
grabau- arenite
sed rock and grabau name of MUD
sed rock- mudrock
grabau- lutite
made up of gravel-sized sediments
GRAVELSTONES
gravelstones made up of rounded sediments
CONGLOMERATE
made up of angular sediments; a.k.a RUDITES
BRECCIA
- with an interior source eroding from the same source and lithifying in place
- uniform composition for clasts and matrices
INTRAFORMATIONAL
- composition derived outside of depositional basin
- clasts and matrices’ composition different
EXTRAFORMATIONAL
clast supported
ORTHOCONGLOMERATE
matrix-supported
PARACONGLOMERATE
Gravelstone with more than 90% of the framework clasts consisting of a single/few resistant rocks/minerals
OLIGOMICT
Clasts of different compositions that are prone to weathering and erosion
PETROMICT
clasts composed of a single composition
MONOMICTIC
clasts composed of about 2-4 different types of parent rocks
DIAMICTIC
clasts with numerous amounts of types of composition
POLYMICTIC