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Filtering by: Committee Member Pett-Ridge, Julie C. Committee Member Kleber, Markus

Evaluating Spatial Patterns of Heavy Metal Levels and Pb Isotopic Compositions of Peat Soils along the Red Dog Mine Haul Road in Northwest Alaska

Creator:

Melby, Kali M.

Abstract:

This study evaluates ore transport and other mining activities on metal levels in the remote Arctic ecosystem of Cape Krusenstern National Monument (CAKR) in northwestern Alaska. This monument is 50 km SW of Red Dog Mine, one of the world’s largest Pb–Zn mines. The Delong Mountain Transportation System (DMTS) haul...

Resource Type:

Masters Thesis

Full Text:

Appendix C. Lead Isotope data
Diversity and Activity of Microbial Extracellular Peptidases in Soil

Creator:

Nguyen, Trang T. H.

Abstract:

Soil nitrogen exists largely as organic matter, including plant liter, dead animal matter, and microbial necromass. About 90% of soil organic nitrogen is proteinaceous material that is too large for plants and microorganisms to assimilate directly. Protein depolymerization therefore plays a critical role in mobilizing this organic source of nitrogen,...

Resource Type:

Dissertation

Full Text:

from my committee members for answering my questions and guiding me along the way, Dr. Julie Pett
Scaling, ash-driven bistability, and other agents of soilscape genesis discovered while digitally mapping soils of the Blue Mountains, Oregon

Creator:

Almquist, Vance Warner

Abstract:

This dissertation reports on four related, though separate projects. The first project details the process of carrying out a digitally augmented soil mapping (DSM) effort alongside an ongoing survey in Oregon's Ochoco National Forest (ONF) using a Random Forest algorithm. The second chapter describes a initial soil survey in Oregon's...

Resource Type:

Dissertation

Full Text:

Dragila, Eric Kirby, Julie Pett-Ridge, and Rick Colwell for providing me with profound opportunities in