4a Guadalupe Mountains

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Slide1: 

Guadalupe Mountains

Slide2: 

Capitan Reef

Slide6: 

Guadalupe Mts. from Salt Flat Graben

Slide8: 

A big nod goes to: Dr. Peter A. Scholle Director and State Geologist New Mexico Bureau of Mines & Mineral Resources New Mexico Tech

Slide11: 

Rio Grande Rift near Albuquerque, N.M.

Slide12: 

Lowered base level exposes reef

Slide13: 

Normal faults cause gentle ENE dip

Slide15: 

PERMIAN PALEOGEOGRAPHY

Slide21: 

Spring Canyon

Slide22: 

McKittrick Canyon

Slide24: 

Basin facies

Slide25: 

Laminated, organic-rich limestone

Slide27: 

Sand lenses exposed in basin facies

Slide28: 

Sandstone fill of submarine fan channel

Slide29: 

Large (3m) blocks of carbonate slope material in debris flow within sandstones

Slide30: 

Basin sandstone with graded bedding

Slide31: 

Graded turbidite

Slide35: 

Shelf-slope transition with vertical fractures

Slide36: 

Forereef carbonate debris flow

Slide37: 

Fenestrate bryozoan. Forereef slope dweller.

Slide38: 

Steeply dipping forereef facies

Slide40: 

Massive El Capitan Lms is the reef facies

Slide41: 

Calcareous Algae (Tubiphytes)

Slide42: 

Bryozoans and Tubiphytes

Slide43: 

Calcareous Sponges

Slide47: 

Shelf-ward edge of Capitan reef

Slide48: 

Enlargement of green algae grains

Slide49: 

Articulate crinoid stem and calyx

Slide51: 

Cross bedded grainstones = beach origin

Slide53: 

Pisolitic dolomite

Slide55: 

Lagoonal facies blue-green algal/cyanobacterial stromatolites

Slide56: 

Dolomicrite with evaporite crystal molds

Slide58: 

Massive nodular gypsum = sabkha

Slide59: 

Red siltstone, gray evaporite (sabkha)

Slide60: 

Red siltstone and nodular gypsum (sabkha)

Slide61: 

Laminated evaporite (basin facies Castile Fm.)

Slide62: 

Castile Fm. Evaporite buries reef.

Slide63: 

FIN

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