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GAS NORTH AND WEST OF FORT WORTH. 17 system is thus the most prolific source of fuels in the United States and probably the most prolific in the world. Along Red River the lower part of the Permian contains very little limestone or gypsum; the middle part, which outcrops in the vicinity of Electra and Vernon, includes several thin beds of limestone and very little gypsum; and the upper part in areas farther west con- tains much gypsum. The proportion of limestone in the Permian rocks increases toward the south. The Cretaceous system contains the oil and gas pools south of Dallas. This and the overlying Tertiary system are the principal sources of gas and oil on the Gulf coast, in California, in Wyoming, and in Colorado, and of coal in the Rocky Mountain States. The Cretaceous system is made up largely of rather persistent and thick beds of whitish limestone, bluish shale, and poorly consolidated sandstone. Some beds of the limestone, such as those at Weather- ford, are so fossiliferous as to be generally called shell rock, and still others, such as those at Benbrook, are hard and brittle. The Creta- ceous sandstones consist of little but grains of quartz and are open and porous. Several are sources of water. The Cretaceous rocks contain gas at Corsicana, Mexia, and elsewhere, as is stated by Mr. Matson in his part of this report. The succession of rocks is shown by the following well log: Log of well at Southern Methodist University, l miles northeast of Dallas, Tex. [See Pl. VII, p. 78.] Thick- Depth. ness. Cretaceous system: Austin chalk: Feet. Feet. Soil........................................................................ 6 6 White rock.................................................... 159 165 Eagle Ford clay: Shale...................................................................... 10 175 Limestone............. .................... ................2 177 Shale........................................................ .44 221 Limestone. . . . ............................................... .... 6 227 Shale....................................................................... 23 250 Lim estone................ ....... ..................... . . . . . . . . . . . 4 254 Shale..................... ................. 91 345 Limestone............................................................... 3 348 Shale....................................................................... 10 358 Shale and bowders......................................................... 50 408 Gumbo..................................................................... 65 473 Blue shale and bowlders.................................................... 55 528 Gumbo and bowders....................................................... 32 560 Shale and limestone bowlders............................................... 49 609 Gumbo and blue shale...................................................... 63 672 Woodbine sand: "First W oodbine sand".................................................... 21 693 Limestone hard................................................. 9 702 "Second W oodbine sand"................................................. 18 720 Shale....................................................................... 9 729 "Third Woodbine sand" and limestone bowlders........................... 12 741 Gumbo.............................................................. 10 751 Lim estone.................................................................. 15 766 "Fourth W oodbine sand".................................................. 18 784 Shale and water sand .......................................................1 16 800 Gum bo..................................................................... 15 815 Sand...................................................................... 12 827 Shale................... .............. ..... ........ .....21 848 29388*-Bull. 629-16-2
Map of a portion of Clay County noting land parcels and owners, major roads and railroad tracks, and bodies of water. Contour marks and designations for current or dry wells are added in red. Scale 1:18,000.
Map of a portion of Clay County noting land parcels and owners, major roads and railroad tracks, and bodies of water. Symbols are added designating existing and dry wells, with contour marks added in red. Scale 1:48,000.
Map of a portion of Clay County noting land parcels and owners, major roads and railroad tracks, and bodies of water. Symbols are added designating where drilling has happened and what has been found, with contour marks added in red. Scale 1:48,000.
Map of a portion of Limestone County from Mexia and Groesbeck, Texas noting land parcels and owners, major roads and railroad tracks, and bodies of water. Contour marks and designations for current or dry wells are added in red. Scale 1:36,000.
Diagram of soil compositions at three gas wells in north Texas -- labeled Southern Methodist University, Magnolia Refining Co. (Corsicana, Tex.), and Focke well No. 2 -- with illustrated textures noting the layers of soil and stone types.
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Shaw, E. W. (Eugene Wesley) & Matson, George Charlton.Natural Gas Resources of Parts of North Texas,
report,
February 1916;
Washington D.C..
(https://texashistory.unt.edu/ark:/67531/metapth1065601/m1/19/:
accessed July 17, 2024),
University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu;
crediting UNT Libraries Government Documents Department.