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Project ID: 2006MT89B

Title: Carbon cycling and the temporal variability in the concentration and stable carbon isotope composition of dissolved inorganic and organic carbon in streams

Project Type: Research

Start Date: 03/01/2006

End Date: 12/31/2007

Congressional District: At large

Focus Categories: Geochemical Processes, Hydrogeochemistry, Water Quality

Keywords: dissolved organic carbon, dissolved inorganic carbon, carbon isotopes, diel, biogeochemistry

Principal Investigators: Parker, Stephen; Cameron, Douglas

Federal Funds: $14,646

Non-Federal Matching Funds: $29,206

Abstract: This investigation will examine and quantify the connection on a diel (24-h) basis between dissolved inorganic carbon (DIC) and dissolved organic carbon (DOC) in two rivers in Montana. It will also provide insight into relationship between daily changes in DOC and transport of metals in these rivers.

The objectives of this proposed study are: 1) to measure and quantify the concentrations and 13C stable isotope composition of DIC and DOC over a 24-h period in two rivers in southwest Montana, 2) to investigate and quantify the connection between the diel cycles of DIC and DOC in these streams, 3) to investigate the diel mobility of trace metals in the system in relationship to the daily changes in DOC concentration.

This investigation will be conducted by two members of the Department of Chemistry and Geochemistry at Montana Tech and employ two undergraduate students to assist with field and laboratory work. These students will gain valuable training in both field and laboratory methods for environmental and geochemical studies in aquatic systems.

Progress/Completion Report, PDF

Progress/Completion Report, 2009 update, PDF

U.S. Department of the Interior, U.S. Geological Survey
Maintained by: John Schefter
Last Updated: Friday, January 21, 2011
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