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Undergraduate Research Project Management System

Contributions of Chemical Weathering of Bedrock to Natural Waters in Anchorage, Alaska

Status Complete
Seeking Researchers No
Start Date 09/01/2004
End Date 06/30/2005
Funding Source Undergraduate Research Grants
Funding Amount
Community Partner
Related Course
Last Updated 07/05/2008 01:25AM


  LeeAnn Munk

Student Researchers
  Julia Cohen


The chemical composition of natural waters results from both geogenic (natural) and anthropogenic sources. The proposed research will investigate the geogenic contributions to natural waters through the chemical weathering of the bedrock (McHugh Complex) and the surrounding geologic deposits (glacial outwash and till) and soils. The four major streams in the watershed that will be studied are Ship Creek, Chester Creek, Campbell Creek, and Rabbit Creek. Bedrock, glacial till, soil, meteoric water and groundwater will be sampled within each drainage and the chemical constituents will be measured using x-ray fluorescence (XRF) and inductively coupled plasma mass spectrometry (ICP-MS). In addition, representative bedrock samples will be experimentally weathered in the laboratory. The chemical composition of the experimental water samples will be compared with that of natural stream, ground, and meteoric water samples in order to determine the contributions of chemical weathering to the overall composition of natural waters in the Anchorage watershed.

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