Pre-test geological and geochemical evaluation of the Caprock, St. Peter Sandstone and formation fluids, Yakley Field, Pike County, Illinois Page: 180 of 275
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FIGURE IV-11
WELL: YAKLEY "C"
FORMATION: ST. PETER (GREEN)
DEPTH: 645 Feet
D391-035b
PHOTOGRAPH NO. MAGNIFICATION
0732
30x
0734
0733
0735450x
450x
700xDESCRIPTION
The matrix (M) has been further
disrupted by additional heating at
3900F and has been lifted from
detrital grains (G).
These higher magnification photos
illustrate the sparse presence of
silica overgrowths (S) and the
relationship of matrix (M) to
quartz grains (Q).IV-40
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Pre-test geological and geochemical evaluation of the Caprock, St. Peter Sandstone and formation fluids, Yakley Field, Pike County, Illinois, report, March 1, 1983; United States. (https://digital.library.unt.edu/ark:/67531/metadc1212590/m1/180/: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.