Stylo-nodular bedding in fine-grained, lower slope limestones (wackestone to mudstone) of the
Capitan Formation. The initial low permeability of these sediments precluded dolomitization or
extensive evaporite percipitation. The further absence of fresh water exposure and early carbonate
cementation of these deep-water deposits led to extensive mechanical and chemical compaction during
burial diagenesis and ultimately yielded a bedding style characteristic of lower slope and basinal
carbonates in this area. Sample from Permian Reef trail on north wall of McKittrick Canyon,
Guadalupe Mountains National Park, Culberson Co., Texas.

© Peter A. Scholle, 1999

Guadalupe Mtns. geology —— Scholle home page —— NM Bureau staff page —— NM Bureau main page