Named as a part (one of six named parts) of the newly named Greer division for the Kiser salt plain on Elm Fork, Greer Co, OK in the South Oklahoma folded belt province. No type locality designated. Consists of white (rare), bluish-, greenish- to drab gray, soft, selenitic gypsum. Easily weathered. Varies from 1 to 3 ft thick. Is separated from the underlying newly named Chaney gypsum of the Greer by unnamed red shale, clay, and sandstone, and from the overlying newly named Haystack gypsum of the Greer by unnamed red shale, clay, and sandstone. Permian age.

Source: GNU records (USGS DDS-6; Denver GNULEX).

["Kiser" is incorrectly spelled "Kaiser" in this report. ] [Kiser] gypsum member of Greer formation presumably abandoned, because Greer formation is abandoned in this report [This statement appears to be incorrect. According to US geologic names lexicon, USGS Bull. 896 (p. 398), Gould "...did not reassign the Kiser and Chaney gypsums to the Greer (=Cloud Chief Gypsum) or to the Blaine. They are now, however, classified as members of Blaine [formation by the USGS]." --GNC secretary, Feb. 29, 2004].
For the so-called "eastern area" of the Greer, the name Cloud Chief formation is proposed. It is shown that the rocks in the "western area" of the Greer belong to Blaine, Dog Creek, Whitehorse, and Cloud Chief (new) [Chaney, Kaiser, Haystack, Cedartop, Collingsworth, and Mangum, formerly members of the Greer, are presumably also abandoned.] The report area, in southwestern Oklahoma, includes all or parts of 10 counties east, northeast, north, northwest, and west of the Wichita Mountains (S. Oklahoma folded belt province and Anadarko basin). The new classification of the Permian of this area is as follows (in ascending order): Duncan sandstone (new), Chickasha formation (new), Blaine gypsum (revised), Dog Creek shale (rank raised), Whitehorse sandstone (rank raised), Day Creek dolomite (rank raised), Cloud Chief formation (new), and Quartermaster formation (revised). All of these units are stratigraphic equivalents of the Double Mountain, the uppermost Permian division of Texas. Age is Permian. Report includes geologic map.

Source: Modified from GNU records (USGS DDS-6; Denver GNULEX).