...-type delta’ in the Poison Creek Formation in upper Big Willow Creek, Hog Cove Butte quadrangle. C, Ash east of Emmett in the upper Poison Creek Formation dated at 9.04 Ma (sample 15RL014). D, Pumice-rich outcrop of upper Poison Creek Formation at the Haw Creek locality dated at 9.01 Ma (15RL015a...

... type area along the Two Medicine River (TMF type area), the Landslide Butte field area (LSB) along the Milk River, the Willow Creek anticline field area (WCA) west of Choteau, the Choteau field area (CH) south of Choteau in the general vicinity of Sevenmile Hill, and the Sun River field area (SuR...

... more than did undeveloped land. The area lowered into the intertidal zone near Portage contained groves of spruce and cottonwood, thickets of alder and willow, marshes and bogs, hunting cabins, and a gas station ( Plafker et al., 1969 ; Ovenshine et al., 1976 ). Some 18 km 2 became...

...—Horsehead Mountain, JB—Jackass Butte, SW—Swamp Creek Rhyolite, TM—Twenty Mile Creek Rhyolite, BB—Bald Butte, D—Drum Hill, HV—Hawks Valley–Lone Mountain, S—Sleeper Rhyolite, SR—Santa Rosa–Calico, I—Ivanhoe, J—Jarbidge. Other symbols: Y—Yellowstone caldera, JdF—Juan de Fuca plate, NNR—northern Nevada Rift...

... swamps ( Kauffman 1977 ; Gloyn et al . 2003 ), including topographically raised mires sustained by high precipitation even during times of lowered relative sea level ( Davies et al . 2005 ). Coal lithotypes and maceral assemblages, which in part reflect vegetation types, show little change through...

...Fig. 4. —South end of abandoned Lake Copano, an Ingleside Terrace basin, with part of mature offshore bar, Live Oak Ridge. Aransas Pass Quadrangle; 5-foot contours. High level of ancient lake marked by sand spit west of Willow Tank and former outlet from lake to Gulf of Mexico located between...

... in freshwater swamps. Subsidence seems to have been uniform across the northern part of the Great Divide basin where the thickness of the Lance Formation, 2,400 ft (730 m), varies little; but the formation locally thickens basinward across the Flattop fault zone ( Fig. 9 ), suggesting that down-to-basin...

..., Podocarpaceae. A well-preserved pollen and spore flora is present in Upper Miocene coal beds of the Kenai lowland, near Homer, Alaska. Stump horizons, abundant wood fragments, wood grain, and amber within the coal attest to a forested swamp. Pollen assemblages from the Homerian type section include elements...

... structures are best known along the major Wyoming thrust zones bordering, on the south, the Wind River and Granite Mountains and the Washakie and Owl Creek Mountains. Other examples of faulted overturned folds occur in Colorado along the Golden thrust of the Front Range and Willow Creek thrust in western...

..., and Sparganiaceaepollenites (probably derived from Sparganium ) was seen among the pollen, while Salix sp. (willow) appeared as leaf remains and Salix sp. pollen also was observed ( Durkin, 1986 ). A noteable exception to this correlation of megafossil and microfossil remains is the absence of Marsilea microspores...

...Figure 3. Generalized field map for the Spanish Creek mylonite within the 7.5′ Willow Swamp quadrangle showing sample localities (JJ-#) and structural measurements. Symbols are color-coded based on classified structural realm: (1) non-mylonitic gneiss (green), (2) mylonitic gneiss (orange), (3...

... and overlain by the Red Member and Overton Conglomerate Member of the Baseline Sandstone. He reported that swamp and lake deposits of the Willow Tank Formation lie upon a gravel-covered unconformity on the Aztec Sandstone with up to 10 m of paleotopography on the basal contact ( Reese 1989 ), and that the non...

... swamp Alnus rubra Bong. Malus fusca (Raf.) C. K. Schneid. Physocarpus capitatus (Pursh) Kuntze Rubus spectabilis Pursh Salix L. Vaccinium L. Red alder Oregon crab apple Pacific ninebark Salmonberry Willow Blueberry Closed‐canopy swamp Athyrium filix‐femina (L.) Roth Blechnum spicant...

... State line to 756 feet at Red Creek, in the western part of the Uinta Basin. Recent departures from this nomenclature are seen in geologic reports 46 on the Dinosaur National Monument and the Strawberry Valley Quadrangle, in which the Frontier is treated as a formation within the Mancos group...

... Survey 15′ quadrangle mapping 50 years later established the distribution of the Neogene sedimentary rocks on the flanks of the Carson Range ( Thompson and White, 1964 ). A generalized stratigraphy of these rocks near Reno informally named them “the Sandstone of Hunter Creek” ( Bingler, 1965 ). Mostly...

... Creek Member at the top. The Stonehouse Canyon Member consists of dominantly carbonaceous mudstone and lenticular sandstone beds that accumulated on a delta shore and plain as offshore bar, beach, channel, levee, lake and swamp, and related deposits. The Bear Gulch Member, which intertongues...

.... Existing publically-available regional geochemical data covering the Pebble area are sparse at best. The 1º × 3 º quadrangle-based USGS Alaska Mineral Resource Assessment stream-sediment sampling program of the 1970s through early 1990s did not include the Iliamna quadrangle, in which Pebble is located...

... streams (Hayes et al. 1976 ; Hite 1976 ). The dense vegetation and lack of relief left the swamps protected from wind, running water and erosion (Reinink-Smith 1995 ; Reinink-Smith & Leopold 2005 ), although fine sediments from intermittent flooding events may form discrete layers of shaly/silty...