1. A cross section of the Permian Reef (see Fig. 1.27). 2. Localities where data were collected (see Fig. 1.28). 3. Lithologic descriptions of the Permian strata at each locality. SAMPLES 1. Anhydrite, white, sparsely fossiliferous, contains some salt.
2. Shale, grey, few fossils, some anhydrite.
3. Anhydrite, white, sparsely fossiliferous, some dolostone.
4. Limestone, grey, very fossiliferous, very porous.
5. Limestone, grey, very fossiliferous, very porous.
6. Shale, grey, a few fossils.
7. Limestone, grey, very fossiliferous, some dolostone and anhydrite lenses.
8. Limestone, grey, fossiliferous
9. Limestone and shale, black to grey-black, clastic, very fossiliferous.
10. Limestone, black, dense, no fossils.
11. Limestone, grey-black, very fossiliferous, porous.
12. Limestone, dark grey, very fossiliferous, dense, some breccia zones.
13. Limestone and shale, black to grey, a few fossils, breccia.
14. Shale, black, platy, siliceous, nonfossiliferous.
15. Shale, black, platy, siliceous, nonfossiliferous
a. On the location map, Figure 1.28, construct a lithofacies map of this region. Label the fore-reef, reef, and back-reef areas. (See the Permian Reef cross section, Fig. 1.27)
b. In which direction was the shoreline (land) during this interval of the Permian?
c. Contrast the water conditions that probably existed in the northwest corner of the map area with those in the southeastern corner
d. Where would you make your speculative land purchase? (Show the location on the litho-facies map.) What were your reasons for choosing this area?
