Keighin and others, 1989								Data Set 33
Reference:  Keighin, C.W., B.E. Law, and R. M. Pollastro, 1989, Petrology and reservoir characteristics of the Almond Formation, Greater Green River Basin, Wyoming: in Petrogenesis and petrophysics of selected sandstone reservoirs of the Rocky Mountain region, E.B. Coalson et al., eds., Rocky Mountain Association of Geologists, Denver, Colorado, p. 281-298.
Author's affiliation:  U. S. Geological Survey
Age:  Late Cretaceous
Formation:  Almond Formation, Mesaverde Group
Location:  Great Divide Basin, eastern flank of Rock Springs uplift, Wamsutter Arch, and northeastern flank of Washakie Basin, southwestern Wyoming, US
Wells:  Cores from 25 wells listed below
Depth range:  3,474 - 14,271 feet
Lithology:  “Very fine to fine grained, lithic, illitic, kaolinitic, and quartzose sandstones.”
Alteration:  “Carbonate and/or silica cements; authigenic kaolinite; dissolution of carbonate cement and some framework grains”
Clay mineralogy:  “Kaolinite is the most abundant clay in the shallower reservoir sandstones, which commonly are extensively cemented by authigenic kaolinite.  Kaolinite abundance decreases with increasing depth; it normally is rare or absent in sandstone below 9,000 ft.  Chlorite was not detected in any sandstone samples.  Illitic clays dominate the smaller-than two micron assemblage below 9,000 ft. and include discrete illite and interstratified illite/smectite.  Little smectitic clay is found in either sandstones or shales.”
Production:  oil and gas 
Core measurement conditions:  Ambient conditions for data in Table 3.  Values of porosity and permeability in table are averages and ranges for each well.  Number of samples not given.
Data entry:  manual entry from Table 3 of the referenced paper.