...RONALD C. JOHNSON; F. ALLAN HILLS Abstract The Laramie granite underlies most of the northern half of the Laramie Range and forms a sharply discordant, nearly horizontal contact with older metamorphic rocks west of Boxelder Creek. Seven whole-rock samples of Laramie granite yield a Rb-Sr age...

...Gilbert Klapper; W. M. Furnish ABSTRACT Conodonts indicate that the Englewood Formation of the Black Hills is in part Upper Devonian and in part Lower Mississippian. The conodont fauna which occurs in the middle of the formation at Boxelder Canyon is correlated with a previously described Upper...

...) there is southward overthrusting south of the Wind River Canyon; (5) there are eastward, northward (and southward), and southwestward thrusts around the Beartooth Range. 1 Read before the Association at the Houston meeting, March 25,1933. Manuscript received, March 3, 1933 2 Department of geology...

... in the Black Hills of South Dakota where the Boxelder composite section was described by Petty (2003 , 2006) . Fig. 6. Lithologic data for the Calstan Shell Moose 16-6-23-6W5 core in the subsurface of the Canyon Creek area of southwest Alberta. Location on map is indicated in Figure 3 . Fig...

... subsurface ( MacKenzie, 1963 ). Fig. 3. —Aerial photomosaic of area around and south of Horsetooth Reservoir. Lower photograph fits on left end of upper photograph. Names and locations of numbered sections in Table I . Fig. 4 —View at Spring Canyon Dam looking south. East-dipping resistant...

...Walter Youngquist; Jerald R. Haegele The oldest rocks known to the writers in the Sublett Range are a thick series of black shales and intercalated thin-bedded black limestones and limestone lenses which are well exposed in the northwestern part, in South Heglar Canyon and in the Pole Canyon...

... and gypsiferous appearance. In the next section toward the south these beds alternate with beds of gypsum, and in the third they are almost entirely replaced by gypsum. Section 24, adjoining, has only the sandstone. A considerable distance separates the Bull Mountain section from that at Boxelder Canyon...

.... Branson (1939) also reported Desmoinesian fusulinids 175 feet below the top of the Tensleep at Wind River Canyon. J. D. Love (1939, p. 26) divided the Amsden formation of the Absaroka Range into an upper Amsden and lower Darwin sandstone member. The name Darwin, first used by Blackwelder (1918 , p...

... rift-related suite, confined to the Nemo area and intruded by the BDM (Figs.  1 , 2 ), comprises a sequence of metamorphosed conglomerate, sandstone, and iron formation ( Redden et al. 1990 ). The BDM layered sill was (1) intruded into horizontal (Boxelder Creek) sandstone and (Benchmark) Iron...

... in the mountain uplands and emerge from the mountains in deep canyons ( Pl. 1 , Fig. 1 ). The steep eastern face of the Range rises from 800 to 1,500 feet above the foothills belt. Faulted, wall-like, level-topped Precambrian mountains compose the Rampart Range from South Platte River Canyon to Colorado Springs...

...), 229, 231, 232 (2), 234 Boulevard, San Diego Co.: III 198 I I I . . . . 186, 189, 194 (2), 195 (3), 196 (5), Bouquet Canyon, Los Angeles Co : . . . . . 191 198 (2), 199, 200 (3), 204 (4), 205 (3), Bowman's Dam, Sierra Co. ? . . . . . . . . . . . . 153 207 (4), 209 (2), 210 (3), 211 (3), 212 Bradley...

... of the Upper Cretaceous are also shown from maps by the writer made in 1937. The Weber of Weber Canyon is reported to pinch out by erosion 7 miles east of the type locality. 11 Blackwelder 12 traced the Weber north from its type locality where it underlies the Park City (Permian) formation and found...

..., a representative sample of the Lyons from Red Mountain Open Space ~40 km north of Fort Collins, Colorado ( Holm-Denoma et al., 2019b ), together with samples of the Fryingpan Member of the Maroon Formation (Basalt, Colorado), Schoolhouse Tongue of the Weber Sandstone (Red Canyon, South Canyon Creek, and Oak Ridge...

... and vicinity and of thick, chiefly sandy beds in northeastern Utah, southwestern Colorado, and the Grand Canyon area fore-shadowed, that early, the extensive geosyncline that was present in and west of the present Rocky Mountain region until near the end of Upper Cretaceous time and played a very important...

... was not so sharp, but more undulatory. No damageC. Mulholland. 1893 March 31. 2:30 a.m. Vaeaville. A sharp shock; it lasted several seconds, and its direc- tion was from north to south. 1893 April 4. 11:40 a.m. [VII! to IX. Newhall and Pico Canyon, Los Angeles Co. Chimneys wrecked, ground fissured...