Many state and national geological surveys produce map products from surficial and bedrock geologic maps as a value-added deliverable for a variety of stakeholders. Improvements in powerful geostatistical exploratory tools and robust three-dimensional capabilities within geographic information systems (GIS) can facilitate the production of derivative products. In addition to providing access to...

We investigated the influence of land cover on nutrient concentrations (295 samples) in headwater streams over a two year period ten agriculture-dominated subcatchments (163 – 8373 ha) southern Ontario Canada. In this region, monitoring and research dynamics wetlands is sparse. Our results indicated significant positive correlation (Pearson coefficient ρ = 0.320) between soluble reactive phosph...

Suspended sediment is an important constituent of freshwater ecosystems that supports biogeochemical, geomorphological, and ecological processes. Current knowledge suspended largely based on surface water studies; however, improved understanding in situ groundwater processes will improve pollutant loading estimates watershed remediation strategies. A study was conducted a representative mixed-u...

We used hyperspectral imaging to study short-term effects of bioturbation by lugworms (Arenicola marina) on the surficial biomass of microphytobenthos (MPB) in permeable marine sediments. Within days to weeks after the addition of a lugworm to a homogenized and recomposed sediment, the average surficial MPB biomass and its spatial heterogeneity were, respectively, 150-250% and 280% higher than ...

We evaluated the spatial distribution and morphological variability of thermal contraction crack polygon (TCCP) networks across Nunavik, a 440,000-km2 region northern Québec that spans northward transition from discontinuous to continuous permafrost. A population 4,567 TCCP sites was sampled analyzed 80,737 georeferenced high-resolution aerial photographs 264,504 km2 ESRI satellite basemaps. Fo...

The mid-Miocene (14.3 + 0.2 Ma; [1]) Ries impact crater located in southern Germany was formed in a two-layer target comprised of dominantly Mesozoic flat lying siliciclastic and carbonate sedimentary rocks that unconformably overlie crystalline Hercynian basement [2]. Ries is a complex crater with a total diameter of ~24 km [2]. Impactite and ejecta deposits are exceptionally well preserved. T...

Assess the Quaternary economic potential of the area, including aggregate and peat resources, through the production of detailed surficial geological maps (1:SO (IO() scale) suitable for industry use. Provide a prdclical database (surficial maps) of use to municipal, regional and provincial governments, which will he llelpful in future land-use planning. Examine the rlature of mass movemen...

Background: The Mars Express and Mars Reconnaissance Orbiter spacecraft both carry radar sounder systems (MARSIS and SHARAD). These instruments transmit a radar signal with wavelength of meters to tens of meters, and penetrate to depths of several km in typical dry crustal rocks. Sounders, however, provide relatively coarse horizontal resolution (1-10 km), and cannot reveal detail of the near-s...

CANADA. J. Parnell, G.R. Osinski, P. Lee, M. Baron, M. J. Pearson and M. Feely, Dept. of Geology & Petroleum Geology, University of Aberdeen, Aberdeen AB24 3UE, U.K., [email protected]), Dept. of Geology, University of New Brunswick, Fredericton, New Brunswick E3B 5A3, Canada, SETI Institute, NASA Ames Research Center, Moffett Field, CA 94035-1000, U.S.A., 4 Dept. of Geology, NUI Galway, Rep...