Page 135 - Petrology of Sedimentary Rocks

DESCRIPTI VE
(MORPHOLOGI CAL)

SUPERMATURE

(rounding)

MATURE

(sorting) w c

SUBMATURE

(winnowing)
,

IMMATURE

ARKOSE QUARTZ- CHERT- PHYLLAREN ITE
>25% Feldspar AREN ITE ARENITE abdt MRF’s
>95% Quartz abdt Chert
1
SEDIMENTARY SOURCE; METAMORPH I C SOURCE
IGNEOUS SOURCE
0 Quartz @ Metaquartz i te or igneous or metamorphic Further variation in:
source if prolonged quies- Size: Gravel, Sand,
0 Chert @MRF cence with abrasion and Silt
long weathering Cement: Quartz, Opal,
@J Feldspar ,:I. Clay
! Carbonate, Hemat i te,
w Mica Gypsum, Phosphate,
etc.
Other Clastics: Chert,
Fossils, Limestone
fragments, glauco-
nite, co1 lophane,
etc.

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