278 RECORD OF DEEP- WELL DRILLING FOR 1905. 
1650. Well 14 miles northwest of Jasper, Jasper County. 
Well begun June 27, 1905; completed July 21, 1905. Authority, George P. Sweat, of Radium Oil Coi 
pany, owner. Incomplete series of samples preserved.] 
This log of a wild-cat well, though evidently generalized, contains some observations 
not found in many logs of wells along the Texas Gulf coast. The formations penetrated 
are mostly of Tertiary age and may include the Lafayette sands, "buried beds," Frio 
clays, and Fayette sands. 
Record of well IJf miles northwest of Jasper. 
Feet. I 
Soft blue (or dark-gray) shale and limestone 100- 200 
Hard blue shale with sandstone to 250 feet, containing pyrite below 200- 30(1 
Soft blue shale with limestone 300- 720 | Bl 
Sand; waterbearing 720- 730 
Soft blue gumbo 730- 935 
Soft blue gumbo (dark sandy clay) containing lignite 935- 945 
Soft, very sticky gumbo 945-1, 250 
Soft blue shale 1, 250-1, 300 
Hard blue rock, described as a kind of sandstone with sea shells 1 , 300-1, 375 
Soft blue shale 1 , 375-1, 520 
Rig used, rotary. Casing used, 63 feet of 12-inch; 683 feet of 8-inch. Not a show of oil. | 
1057. Well at Cleburne, Johnson County. 
[Well began in January, 1903; completed in August, 1903. Authority, J. J. Myers, contractor and 
driller. No samples. Geologic correlations checked by A. C. Veatch.] 
This well obtains water from a permeable bed or reservoir near the base of the Lowei 
Cretaceous (Comanche) series. This bed occurs in what has been termed the Trinity 
division of the Lower Cretaceous and is one of the so-called Trinity sands. The well penei 
t rates nearly the full succession of beds in the series, these beds being marls, limestones 
and clays, with the porous sands or sandstones. The formations, in downward order 
are Fort Worth, Preston, Edwards, and Comanche Peak limestones and marl, Paluxy 
sand, and Glen Rose formation, including the Trinity sand. 
Record of Gulf Colorado and Santa Fe Railway well No. 3. 
Feet. 
Rock (probably limestone) 0- 2 
"Soapstone" rock and black shale (probably marl and limestone) 20- 43 
Sand; water-bearing; water rose 300 feet (Paluxy) 435- 45 
Rock and shale 450- 50 j 
Sand; water-bearing; water rose 375 feet (Paluxy) 500- 52 i 
Layers of extremely hard rock underlain by a black shale which caves badly 
when water touches it ... 525- 6£ I 
Soft white rock 660- 9S j 
Sand; water-bearing; water rose 750 feet (Trinity). 92.5- 9i j 
Rock and sandy blue clay 950-1 , 0( 
Very hard sandstone 1 , 004-1, 0( 
Sandy shale I, 008-1, 01 
Sand; water-bearing (Trinity) shale and rock 1, 030-1, K 
Sandstone 1, 10.5-1,21 
Rig used, cable and rotary. Casing in well, 1,135 feet of 6-inch. Main supply of wat 
at 1,060 feet. Well yields 160 gallons per minute by air lift. 
