...Figure 6 —Subcrop geologic map showing Lion Mountain anticline, Reeves syncline. This map is a subcrop map beneath younger, unfolded features including the San Cayetano fault, Saugus Formation, Lion fault, and alluvial-fan deposits as illustrated in cross section XX’. Note the change...

... interpretation of the first airborne magnetic survey of Botswana ( Reeves, 1978 ) coupled with subsequent drilling discovered the Xade Complex and showed that it is made up of mafic and ultramafic rocks. However, the limited amount of drilling did not provide sufficient information to either interpret in detail...

... south of Carter. This series was designated by Gould as the western area of Greer gypsums. It is noticeable that all these changes in the Duncan sandstone occur on both sides of the syncline at equal distances from the Marlow area. It should also be made clear that the changes in material and color...

... some concretionary beds. The thin sandy limestone that is known to drillers as the Mosby sand, and the Mowry shale member, lie 1,070 and 750 feet respectively above the Cat Creek sand, which has been selected by Reeves as the local base of the Colorado (in which it is included), and which is therefore...

... different areas are for the most part difficult. Almost all the sedimentary formations are tuffaceous and some consist principally, or wholly, of tuff and other volcanic products. Southern Panama west of the Canal Zone appears to be the source of most of this volcanic material. Quebrancha syncline...

... the Duncan in this region. For these reasons the entire matter is held in abeyance. Several papers on various local phases of the redbeds have appeared from time to time, especially those by Snider, 5 Wegemann, 1 Aurin, 2 Ohern, 3 Greene, 4 Clapp, 5 Reeves, 6 and Howell, 7...

..., of which it is a part. It lies beneath southern Lea and Eddy counties, New Mexico, and Culberson, Reeves, Jeff Davis, Brewster, Pecos, Ward, Winkler, and Loving counties, Texas ( Fig. 1 ). Within this basin accumulated the greatest thickness of upper Permian deposits known in the Southwest...

... Paleozoic and Lower to Middle Triassic units. The monocline is connected by a ramp syncline that constitutes the main part of the depocenters of the Exmouth and Dampier Sub-basins. It was partially breached by the Rankin fault, a northeast-trending, right-stepping fault system, during Callovian–Oxfordian...

... by this compressive action, would tend to continue to rise with reference to the adjacent synclines as a result of several causes. In so far as the crests were induced by loads applied to the earth’s crust at some distance they would become subjected to tensional stresses decreasing the load upon the rocks beneath...

...-dimensional (2-D) seismic data. The data indicate that the frontal Kiowa syncline in the Arkoma basin has been passively uplifted by blind thrusting at the Morrowan Wapanucka Limestone level, and that smaller wavelength folds are produced by thrusting at shallower levels in the Atoka Formation. Faulting...

... 100 pounds per square inch? Evidently the pressure under which the fluids exist in the field was not released by the expansion of the gas. Again, how are we to explain deposits of gas, or gas with oil, in synclinal areas with water surrounding such deposits? The water certainly has had sufficient...

.../syncline fold pair with subhorizontal fold axes and a fold trace, marked by the outcrop of the Devil s Glen Formation, trending NNE-SSW. ESE- or SE-dipping beds in both fold limbs indicate overturning towards the NNW (Fig. 8). Briick & Reeves (1976) relate the NNW-facing folds to the formation of the Bray...

... it must apply both horizontally and vertically (with stratigraphic depth). Reeves has pointed out valid objections to applying the theory in vertical section and the present writer suggests that the theory may be based on insufficient evidence and (or) coincidence. A critical review of the theory...

.... Levorsen and Frank Reeves whose opinions and geological concepts have provided valuable stimulation. There were several epochs of folding affecting the area during Paleozoic time, and the most recent, probably still active in the central basin area, had its inception probably late in Cretaceous time...

... or through fissures bordering fault planes. A normal geothermal gradient has been cited as the source of heat for these springs (Reeves, 1932); that is, the elevated water temperatures were said to result from the deep circulation of meteoric waters under artesian head through synclinal basins. Although...

... which may pay high dividends. 1 Manuscript received, December 30, 1066; accepted, March 13, 1967. FIG. 7. —West-east electric-log section E-E′, south of Bunchy Creek-Reeves fields, Allen Parish, parallel with section D-D′ ( Fig. 6 ). Location shown on Figure 1 . In the lower...

...G. R. PEACE; B. M. BESLY Abstract Interpretation of commercial seismic reflection data from the west of Banbury, south-central England, has provided information on the late Carboniferous structural evolution of the Oxfordshire Syncline. End-Carboniferous structures are preserved in the footwall...

... to north-west, ( a ) Old Dor: Welton Chalk Formation wedged-out on top of anticline with thinner- bedded Burnham Chalk Formation above. (S are slickenlines). ( b ) 50—60 metres NW of Old Dor: Disharmonie angular and chevron second- order folds, (c) 30–40 metres SE of The Staple: First-order syncline hinge...