... in southern Crane and northern Pecos Counties, Texas, a third requisite is required: tripolitic chert. This unique rock appears to be the result of subaerial erosion. The tripolitic chert is usually found in downthrown fault blocks or grabens which are present along the flank of the “Old Fort Stockton high...

... accumulation appears to be controlled by a small structural closure on a major northwest-southeast anticlinal trend. Locally, this trend represents the first line of folding northeast from the Delaware basin and on the western edge of the Fort Stockton high of the Central Basin platform. Deeper oil and gas...

... Lands. North of Fort Stockton there is a north-trending high area, which is a striking feature of the old land surface. In Terrell County the slope of 60 feet per mile is noteworthy in connection with the thickening of the Cretaceous rocks and the presence of the Glen Rose division of the Trinity group...

..., as this formation is more saline than the Blaine. The San Andres, therefore, probably includes both the Dog Creek and the Blaine. The top of the lime referred to in the foregoing paragraphs applies only to the part of the basin north of the Lea-Winkler and Fort Stockton-Yates “highs.” On these “highs” the top...

... . Cullimore C. C. (1941) . Old Adobes of Forgotten Fort Tejon , Kern County Historical Society , Bakersfield . Eisman D. B. (1972) . Dust from antelope , Calif. Geol. 25 , 171 - 173...

... limestone “high.” 8, Big Lake and World-Powell limestone “high.” 9, Capitan reef and the Getty “high.” 10, Line of Capitan reef in Lea and Winkler counties. 11, Structural “high” in Lea and Winkler counties. 12, Fort Stockton-Yates limestone “high.” 13, Crane-Upton limestone “high.” 14, Apache Mountain reef...

... is bounded on the north by the Fort Stockton arch which forms the south end of the Central Basin platform. Its south margin is a structurally high area reaching from the vicinity of Fort Lancaster in western Crockett County, west across northern Terrell County into Pecos County. The name Fort Lancaster...

...,) reports that he discovered on the side of a high mountain in the vicinity of San Fernando, 'a fissure in the rocks from which hot gas was fiercely issuing. The rocks and ground were almost too hot to be touched.' In the vicinity of Fort Te]on, 100 miles north of Los Angeles, (from which place you have...

...- and gas-producing province. The eastern edge of the Delaware basin is formed by a fault zone extending from west of Hobbs to southeast of Fort Stockton ( Figure 2 ). These faults appear to be steeply dipping, for they are cut by relatively few wells and the faults are generally aligned in a north-south...

... of the town of Fort Stockton on the crest of the feature known as the Fort Stockton “high.” 33 This well encountered granite (presumably pre-Cambrian) at a depth of 4,750 feet. Future drilling may prove that the Fort Stockton mountains form part of a more or less continuous backbone of the Central...

... from the top part of high frequency sequence Alb HFS 19, through HFS 20 and 21 ( Kerans et al., 1999 ) in the upper 200 m of the Devils River. Both species occur in the uppermost cap rock layer of the Upper Albian Boracho Formation northeast of Ft. Stockton, Pecos County, Texas ( Scott and Kidson, 1977...

.... The slip along the major faults is reflected by monoclinal dips on the Yates which reach a rate of 500–600 feet per mile. Almost no Yates thickening is associated with these dips. It is probable that the faults do not cut the Yates in most of the area. In the vicinity of Fort Stockton, however, faults...

... of the Hess Formation which occupy most of the mountain front east of Hess Ranch to the Fort Stockton highway (U. S. 385). East of Leonard Mountain the lower part of the Skinner Ranch Formation is exposed in the spur 1 2 mile north of the Hess Ranch and on the long north-facing slope...

... of the Yates dome is a structural ridge taking a westerly trend. Data available at the present time indicate that this ridge continues in a gently crescentic course through northern Pecos County, where it is locally known as the “Fort Stockton high,” and thence into Ward and Winkler counties, Texas...

... given above. Thus we get 62 B U L L E T I N OF T I l E SEISMOLOGICAL SOCIETY OF A M E R I C A 500 fathoms for depth when we put the speed equal to 5.7 kilometers per minute. This value is not inconsistent with the values between the epicenter and Fort Point. It is rather high, however, for an average...

... and its surroundings, and the Fort Tejon–Cajon Pass region. It builds and expands on previous works including those of Toppozada ( 1975 , 1984 , 2000 ), Toppozada and Parke ( 1982 ), Toppozada and Borchardt ( 1998 ), Toppozada et al. ( 1978 , 1981 , 1990 , 1992 , 2000 , 2002). Figure 1...

... the bank-full width of the Pecos River between Old Fort Sumner Park and Acme Gage just north of Roswell ( Figure 1 ), representing ∼80.0 river miles (130 km) that encompasses the northern critical habitat designation for the PBSM. This stretch of river has complex groundwater–surface water interactions...

.... At Fort Tejon nearly all buildings were thrown down, large trees overthrown, and the earth opened in a fissure twenty feet wide and forty miles long; the sides then came together with such violence that a ridge was formed ten feet wide and several feet high. At Reed's ranch, near Fort Tejon, a house...

... Flat station), the Permian is in turn overlapped by the Cretaceous. The area has, therefore, had a long positive history. Farther east, near Fort Stockton, pre-Cambrian granites have been penetrated by a boring at a depth of 4,750 feet; 6 here they are overlain by the Permian, and probably lie...

... Permian limestone petrology and carbon isotope distribution, Glass Mountains, Texas : Jour. Sed. Petrology , v. 31 , p. 231 – 244 . Young , Addison , 1960 , Paleozoic history of the Fort Stockton-Del Rio region, West Texas, in Aspects of the geology of Texas: a symposium: Tex. Univ. Pub...