University of Texas at Austin

Lyons Sandstone, Denver Basin (16)

Comments on Geologic Parameters

16 Rock Mineralogy:

16 Table:

Sandstone composition determined from 11 thin sections from the Horsetooth reservoir. Composition base on about 200 point counts as is given as a percentage for the whole rock (Adams and Patton, 1979)

SAMPLE Sandstone Grains Cement
Grains Pores Cement Quartz Feldspar Others Chert Calcite Iron Oxide
I23 91.1 5.4 3.5 99.5 0.0 0.5 43.0 0.0 57.0
H21 89.1 0.4 10.1 96.1 2.6 1.3 43.0 49.0 8.0
G18 94.5 4.5 1.0 97.9 0.5 1.6 50.0 0.0 50.0
G16 84.1 1.5 14.4 98.2 1.8 0.0 26.0 62.0 14.0
F15 66.0 12.5 21.5 99.2 0.8 0.0 58.0 28.0 14.0
E14 81.6 4.2 14.2 94.3 4.6 1.1 36.0 32.0 32.0
D13 75.7 2.5 21.8 94.8 5.2 0.0 23.0 63.0 14.0
B8 85.2 0.5 14.3 96.5 1.2 2.3 59.0 41.0 0.0
A5 97.8 0.0 2.2 98.4 1.1 0.5 50.0 50.0 0.0
A3 76.3 6.9 16.8 96.8 1.9 1.3 38.0 59.0 0.0
A1 79.5 9.5 11.0 90.6 8.2 1.2 63.0 32.0 0.0

16 Reference:

Adams and Patton, 1979

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