[ Center for Environmental Chemistry and GeoChemistry ] [ The Penn State Biogeochemical Research Initiative for Education ]
[Critical Zone Exploration Network] [Earth-Environmental Systems Institute] [Penn State Astrobiology Research Center] [http://www.shalenetwork.org/]

Department of
Geosciences

Brantley

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Other related interests:

CECG

EESI

CZEN

IMAGES OF RECENT RESULTS
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Photo credits: AFM image by Penn State student Melissa and Kent State Professor Pat Maurice; Bacteria imaged on hornblende by Ed Basgall and Laura Liermann.


SEM image of Streptomyces

SEM image of Streptomyces sp. growing on hornblende (Buss et al., 2007)
Road cut in the Rio Icacos watershed image

Road cut in the Rio Icacos watershed of Puerto Rico showing spheroidal weathering diorite (Fletcher et al., 2006)

photo of stream impacted by acid drainage

A stream impacted by acid mine drainage near Silverton, Colorado. (Kimball et al., 2009)
photo of nitrogen-fixing soil bacterium

Azotobacter vinelandii is a nitrogen-fixing soil bacterium that may use a molybdophore to take up Mo (Liermann et al., 2005)
Collecting water samples for research at Shale Hillssite


Working at the Susquehanna Shale Hills Critical Zone Observatory (Jin et al., 2010)
microscopic view of a polished albite crystal


A polished albite crystal.....more
Photo of a weathering rind formed on an andesite clast.

Weathering rind formed on an andesite clast, Guadeloupe (Sak et al., 2010)


figure of calculated relationship between fractions of albite on weathered surface as a function of erosion rate


Calculated relationship between fraction of albite remaining on weathered surface as a function of erosion rate (Lebedeva et al., 2010)


Photo of Column Reactor Dissolution of granite and basalt in column reactors (Katya Bazilevskaya)