... rocks are less well developed but also appear to overlie basement faults. A distinctive monocline trends northwest-southeast from east Val Verde through northwest Kinney Counties, approaching parallelism with the Balcones fault zone In the southeastern part. This flexure, the Sycamore Creek monocline...

...Figure 9 Slip tendency plot for best fit stress inversion from small displacement faults at Sycamore Creek pavement study location, performed using the technique of McFarland et al. ( 2012 ) and 3DStress® v. 4.0 software. ...

...Robert H. Cuyler ABSTRACT The Travis Peak formation and its members were named and described by Hill in 1889. At the type locality in Travis County, the formation consists of the Sycamore sands and conglomerates, composing the lowest member, the Cow Creek limestones and shell beds forming...

... the fault movement in Sycamore Canyon (red dashed line) shows a gentle slope with ∼460 m of mid-Miocene relief. (B) Cross section through Dry Beaver Creek Canyon with four-fold vertical exaggeration and reconstruction of the Paleozoic–Cenozoic unconformity. The profile was created from the geologic map...

... Creek, in Val Verde County. Texas. The structure is an anticline with its axis extending west by north, crossing Sycamore Creek about 2 miles south of the Southern Pacific Railway near Johnstone siding, and extending across San Felipe Creek 3 or 4 miles north of Del Rio. The abnormal eastward extension...

... of occurrence is suggested (Fig. 3). A few of the 1969 to 1988 earthquakes occur in the vicinity of the north-trending faults. A cluster of events apparently associated with a north- trending fault(s) north of the Sycamore Creek fault has a focal mechanism (No. 25) that exhibits a north-trending, right-lateral...

... strata and terminate against the Clayton–Marsh Creek fault, which is at a low angle to bedding and is interpreted to be the basal detachment for part of the graben system. The Clayton–Marsh Creek fault in turn is linked to a system of faults that juxtapose blueschist facies rocks of the underlying...

... by the Sycamore limestone. Its type locality, Sycamore Creek, is in western Johnson County. The occurrence of the Sycamore limestone in the Arbuckle Mountains is also peripheral and is just outside the Woodford ridge previously mentioned. It has been described by Taff 2 as a lentil because of its wedge shape...

...-scale from Ernst Tinaja (in Big Bend National Park), Langtry, Texas, and Sycamore Creek and Pinto Creek on a private ranch near Del Rio, Texas (on the periphery of the Maverick Basin), Super Target in western San Antonio, Texas, and Garden Ridge near Garden Ridge, Texas (on the San Marcos Arch). We...

... gas wells in the 1½ mi between the drilled area of the northwest arm and the edge of the Sycamore field, so this may be a separate reservoir rather than an extension. Summary .—The limits of the Spruce Creek pool are determined by differences in the characteristics of the nuclear logs of wells...

... and one nonsystematic regional opening-mode fracture sets. The primary set strikes at approximately 45° and the secondary set at approximately 310°. The Sycamore Creek pavement is also cut by normal faults, striking northeast–southwest, with a mean strike of 232° and 40° dip, typical of normal faulting...

... Creek syncline. It normally overlies the Hunton limestones unconformably. The westernmost exposure in Sec. 21, T. 1 S., R. 3 E., shows this formation in contact with the Viola limestone. This relationship is produced by faulting. The Woodford shale is exposed in its normal stratigraphic relationship...

... contains boulders and cobbles of Sycamore, Woodford, Viola, Simpson, and Arbuckle rocks. FIG. 4 —Columnar sections (in feet), Western Arbuckle Mountains and vicinity. Lake Classen area from Dunham (1955) . The Washita Valley fault trends west-northwest bisecting the Arbuckle Mountains. Ham...