Introduction: Chemical weathering and petrologic trends of the martian surface have been estimated from thermal infrared (TIR) spectral models from the Thermal Emission Spectrometer (TES) and Mini-TES on the Spirit and Opportunity rovers [1,2]. Interpretations of chemical data from APXS on the MER rovers and TIR data from TES and the Thermal Emission Imaging System (THEMIS) suggest planet-wide ...

Vertical contrasts in permeability, particularly where permeable surface materials overlie impermeable materials that prohibit the downward infiltration of groundwater, concentrate the groundwater and become an important focus of landslides that are triggered by intense rainfall. Just such a hydrogeological structure is present within the pyroclastics in Nishigo Village in Fukushima Prefecture,...

1376. [14] Michalski, J. R. et al. (2005), LPSC XXXVI, Abstract #1188. [15] Hamilton and Lucey (2005), LPSC XXXVI, Abstract #1272. [16] Christensen et al. (2000), JGR, 105, 9735-9739. [17] Reyes, D. P. (1994), M.S. Thesis, Arizona State University, Tempe, AZ. Figure 2: Variation of components between the weathered and cut surfaces of the granitic samples. Plagioclase feldspar and quartz values ...

[1] Spectral interpretation that silicic rocks are widespread on Mars implies that Earth’s differentiated crust is not unique. Evaluation of observations bearing on the composition of the Martian crust (Martian meteorite petrology and a possible crustal assimilant, analysis of Mars Pathfinder rocks, composition of Martian fines, interpretation of spacecraft thermal emission spectra, and inferre...

The role of pigment particle size, pigment volume concentration and dispersion in gloss loss of paint lms on weathered surfaces is unclear. Because reproducibile and cost e ective data is di cult to obtain, an approach based on computer simulation and modelling is a promising supplementary tool. We describe the simulation of a painted surface consisting of pigment particles of known size, pigme...

Combustion of fossil fuel in gasoline and diesel powered vehicles is a major source of aerosol particles in a city. In a street canyon, the number concentration of particles smaller than 300 nm in diameter, which can be inhaled and cause serious health effects, is dominated by particles originating from this source. In this study we measured both, particle number size distribution and traffic d...

The effects of mineralogy and geological setting on trace metal concentration and distribution within six weathered profiles developed sandstone and mudstone was assessed. Primary minerals occurring in the weathered profiles are quartz, plagioclase, and K-feldspar. Kaolinite is the most dominant secondary mineral followed by mixed layers of smectite-illite, illite, hematite, siderite, and occas...

To elucidate the effects of seasonal variation of precipitation on the distribution of polychlorinated biphenyls (PCBs) in estuarine sediments and benthic feeders, PCB concentrations of river surface sediments and mullet fish (Liza macrolepis) were investigated in the estuary of Er-Jen River near former PCB contamination sites before and after each wet season from 2002 to 2004. Analyses of grai...

In DELPHI Volume IV, Chapter 3 (1993) it was argued that by making assumptions about the propagation behavior of a synthesized (plane) wave through a weathered layer it is possible to consider the weathered layer effects at the source and receiver side separately. The fast weathered layer distortion to the (plane) wave front at the source side is largely restored during propagation through the ...