...Darren R. Gröcke; Gregory A. Ludvigson; Brian L. Witzke; Stuart A. Robinson; R.M. Joeckel; David F. Ufnar; Robert L. Ravn Abstract Analysis of bulk sedimentary organic matter and charcoal from an Albian-Cenomanian fluvial-estuarine succession (Dakota Formation) at Rose Creek Pit (RCP), Nebraska...

.... n. sp. from the Glen Rose Formation in lateral, oral, and aboral view; (holotype, NPL 93001; paratype, NPL 103166). Interradius at top and radius at bottom for oral and aboral views. bb = basals; cc = centrodorsal cavity; ds = dorsal star; ib = interradial buttresses; rp = radial pits...

...Scott Argast; James O. Farlow; Rose M. Gabet; Daniel L. Brinkman Abstract The experimental transport-induced abrasion of five fossil teeth from a crocodilian and the tyrannosaurid dinosaur Albertosaurus demonstrates that enamel-coated teeth are minimally affected by abrasion associated...

... are in different stages of recovery. Drainage scars are dominated by either salt-resistant vegetation or the absence of any vegetation. A few areas have recovered completely with the return of trees to the creek banks. Lease pits used for saltwater storage also remain as prominent features, but they, too, have...

... plutonic complex over time, modified after Barnes et al. (2016 , fig. 13). Initial activity involved emplacement of dioritic to tonalitic Uncles Creek magmas in the mid crust (∼600 MPa). These magmas differentiated and rose to upper crustal levels (∼200 MPa) to form the Uncles Creek pluton. This activity...

...-dipping (0 to 15 degrees) surfaces typically tend to polish, with a dominance of flute and scallop ventifaction features. In addition, terraces and scour pits around concretions on rock surfaces are common at this angle of exposure. Rock surfaces with moderate dip angles (16 to 30 degrees) into the sand...

... producing mines ( Table 1 , page 13). Open pit mining on the Carlin Trend began in 1965 at the Carlin Mine, and underground mining of the same deposit began in 1993. Table 1. Gold Endowment of the Carlin Trend December 31, 1996 MINING OPERATION/DEPOSIT H istorical P roduction P roven and P...

..., and have a wider range of δ 18 O H2O values suggesting dilution by variably exchanged meteoric waters. Results show that deeply sourced ore fluids rose along the Getchell fault system, where they dissolved carbonate wall rocks and deposited gold-enriched pyrite and jasperoid quartz. Gold and pyrite...

..., and potassium feldspar, with lesser biotite and garnet; muscovite and rare element minerals are accessory phases when present at all ( Hewitt 1967 , Goad 1990 , Ercit 1994 ). Pegmatites containing beryl and columbite-group minerals, including the Rose Quartz pegmatite and the cogenetic Beryl Pit pegmatite...

... to shop for mining properties during the growing national prosperity of the early 1850s. For example, the Lewis Gold Mine in Union County was owned by a Philadelphia company that hired Frank Wiatt as the local mine superintendent. Gold prices during the Civil War rose and only significantly dropped...

... Development at 12 and 3 Ma , Geology 29 , 719 – 722 . Hunter L. E. Rose R. Howle J. Brown V. Powers M. Hilton B. Hubbard E. ( 2009 ). Geotechnical and Paleoseismic Investigations of the Martis Creek Dam, Truckee, California , AEG 2009 Annual Meeting Field Trip...

... of the sedimentary units exposed at Rose Quarry. Fluvial facies codes from Miall (1978) (as listed in Miall 1982 ). Thickness of each bed listed in meters at left. To better understand the spatial extent of the bonebed, we dug exploratory pits extending laterally from Rose Quarry along the hill...

... and gently-rounded relief of about 6m. In contrast, at Mtwapa Creek there is a karst surface with cylindrical pits up to 1 m deep filled with hard red sediment (Fig. 4b). Similar solution pits occur at Watamu, Likoni Creek, and S of Tiwi. In the last locality red sandstones overlie a fibrous calcite crust...

... SC-171, Willwood Formation, Wyoming, USA; and trunk vertebrae SMM P77.8.282 from Brisbane locality and SMM P76.28.237 and P76.28.238 from Wannagan Creek locality, Tongue River Formation, North Dakota, USA. Naylor and Krause [1981] also listed incomplete dentaries, premaxillae, maxillae, dentaries...

... material which accounts for the thick beds of caliche ordinarily found in the upper part of the Goliad section exposed in cuts and pits in southwest Texas (Fig. 15). Fig. 22. —Goliad sandstone and calcareous clay. Road cut at east side of Lagarto Creek bridge, 1 2 mile west of settlement...

... limestone. Microfossils determined by C. I. Alexander as follows. Cythereis fredericksbitrgensis Alexander Cytheridea spp. Eocytheropteron spp 3 Total 132 Glen Rose formation (upper part) Sandy limestone with pockets 10 inches in diameter filled with t celestite. Top is pitted...