In a gravel pit (SE Vienna basin), metre-thick bedded successions of conglomerate and sand layers of Miocene age are exceptionally well exposed along a W-E-striking wall. The sediments are cut by numerous N-Sstriking, high-angle normal faults. The faults have a marked displacement gradient and offset marker layers of up to several metres. Using ground penetrating radar, we measured ten sections...

We investigated the prevalence and diversity of Escherichia coli strains isolated from surface waters from multiple watersheds within the South Nation River basin in eastern Ontario, Canada. The basin is composed of mixed but primarily agricultural land uses. From March 2004 to November 2007, a total of 2,004 surface water samples were collected from 24 sampling sites. E. coli densities ranged ...

The surface of Mercury has been heavily modified by impact cratering and volcanic plains since the initial formation of its lithosphere and crust. As in the case of the Moon, the origin of early plains deposits has been difficult to determine because ponded impact basin ejecta and impact melt deposits can mimic the topography and texture of extrusive volcanic plains. In order to understand bett...

In dynamical systems examples are common in which two or more attractors coexist, and in such cases the basin boundary is nonempty and the basins often have fractal basin boundaries. The purpose of this paper is to describe the structure and properties of unbounded basins and their boundaries for two-dimensional diffeomorphisms. Frequently, if not always, there is a periodic saddle on the bound...

The contamination of shellfish harvesting areas by fecal bacteria in the Annapolis Basin of Nova Scotia, Canada, is a recurring problem which has consequences for industry, government, and local communities. This study contributes to the development of an integrated water quality forecasting system to improve the efficiency and effectiveness of industry management. The proposed integrated forec...

Apollo 16 and Apollo 17 photographs of the far side of the moon reveal a double-ringed basin 500 kilometers in diameter centered at 1 degrees N, 112 degrees E. The structure is very old and subdued; it is probably Pre-Nectarian in age and appears to have been filled and modified by younger events. The heights of the basin's rings are based on laser altimeter data from Apollo missions 15 through...

a r t i c l e i n f o Keywords: Great Basin Lake Bonneville Great Salt Lake Stansbury Island Stansbury shoreline Stansbury oscillation Stansbury Gulch Paleolake chronology Paleoclimate Multiple proxy This paper reports on recent multiproxy research conducted to determine the chronology of lake-level fluctuations recorded in sediments from a natural exposure at a classic Bonneville basin site. G...

components to changes in precipitation mediate productivity response in a desert ecosystem Lara G. Reichmann* and Osvaldo E. Sala USDA-ARS Grassland, Soil and Water Research Laboratory, 808 E. Blackland Rd., Temple, Texas, 76502 USA; Integrative Biology, University of Texas at Austin, 1 University Station, C0930 Austin, Texas, USA; School of Life Sciences and School of Sustainability, Arizona S...

Isotope stratigraphy of the Lapa Formation, São Francisco Basin, Brazil: Implications for Late Neoproterozoic glacial events in South America Karem Azmy a,∗, Alan J. Kaufman b, Aroldo Misi c, Tolentino Flávio de Oliveira d a Department of Earth Sciences, Memorial University of Newfoundland, St. John’s, Nfld A1B 3X5, Canada b Geology Department, University of Maryland, College Park, MD 20742, US...