.... Cen. Sec. 15, T. 12 S., R. 20 E. The Haskell limestone ( Figs. 3 , 4 ) is a bluish gray, compact, massive, well crystallized, fine-grained, fossiliferous limestone with local oolitic lenses at the top and base which contain pelecypods and gastropods. In Kansas, the thickness ranges from...

...Table 1. Elements of Tonganoxie Paleovalley Fill Below Haskell Limestone ...

...) in 1945 as compared with 1944. Although a number of gas wells with initial open flows in excess of one million cubic feet per day were brought in at several widely separated localities, only one new gas pool of significant size was developed. This is a Haskell sand pool south of the Bradford oil pool...

... within the unit. These characteristics make the Tonkawa sequence also suitable for seismic-stratigraphic analysis. In descending order, the interval consists of the Haskell limestone, the upper, middle, and lower Tonkawa sandstones, and at the base, the Avant limestone ( Figure 4 ). A shale unit...

...Fig. 9. —Isopach map of GIS between top of “Haskell” limestone and base of upper Tonkawa sandstone, Beaver County, Oklahoma. This map shows two laterally coalescing distributary systems (modified after Khaiwka, 1968 ). ...

...) the discovery of the Manning-O’Connor, “Caddo” limestone, field in southwestern Stephens County; (2) the discovery of several fields in Throckmorton County through the use of the reflection seismograph; (3) the discovery of Strawn production in east-central Haskell County; (4) the discovery of the Eskota field...

... precludes definite correlation of stratigraphic units across the facies change. Consequently, subsurface nomenclature differs in shelf and basinal areas. Named units commonly used in subsurface correlation include the Belle City, Haskell, and Tonkawa limestones on the shelf, and the Medrano, lower Wade...

... to include the Haskell Limestone Member, Robbins Shale Member, Ireland Sandstone Member, Amazonia Limestone Member, and a member to be named in the forthcoming report. The Missourian-Virgilian boundary is placed at the base of the redefined Douglas Group. Fig. 3. —Reclassification of Douglas...

...; Sequence boundaries 3, 4, and 6 are not confidently located in this cross section. B) Map showing location of cross section shown in Part A and isopachs (in meters) of Vinland Shale (interval between sequence boundary and base of Haskell Limestone). Note possible tributary valley to southwest. Dots...

... in each is shown on a structure map contoured on top of the Tonkawa sand ( Fig. 16 ). On this map, two gas-water levels are shown as dashed lines at subsea depths of 3,315 and 3,415 feet. Fig. 16. —Tonkawa sand structure. Bar “A,” a sand developed below a limestone locally termed “Haskell...

... limestone reefs were located and drilled in 1939, in Haskell and Baylor counties. The one in Baylor was productive in the British-American’s Seymour field. In general, geophysical work has been disappointing on the west flank of the Bend arch, and drilling is governed chiefly by subsurface trend mapping...

... in West Texas, and in 1941 he pursued the subject further, in terms of resolution control in seismic surveys. Hafner (1940) treated the seismic-velocity variations in the California Tertiary basins, and discussed the relations of various speed layers to geologic horizons. Olson (1941), Haskell (1941...