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  • Brennecka PreText.pdf

    Creator:
    Brennecka, Gregory A.
    Abstract:
    Magmatic sulfides from Yerington, Nevada, and Yanacocha, Peru, were analyzed by laser ablation-inductively coupled mass spectrometry (LA-ICPMS) and electron microprobe to determine copper, gold, and silver concentrations and ratios in order to examine the relationship to the metal content of related magmatic-hydrothermal ores. The magmatic sulfides occur in plutonic rocks...
    Full Text:
    Gregory A. Brennecka for the degree of Master of Science in Geology presented on March 14, 2006. Title

  • Brennecka Thesis.pdf

    Creator:
    Brennecka, Gregory A.
    Abstract:
    Magmatic sulfides from Yerington, Nevada, and Yanacocha, Peru, were analyzed by laser ablation-inductively coupled mass spectrometry (LA-ICPMS) and electron microprobe to determine copper, gold, and silver concentrations and ratios in order to examine the relationship to the metal content of related magmatic-hydrothermal ores. The magmatic sulfides occur in plutonic rocks...
    Full Text:
    microprobe analysis were used to directly determine the metal contents of magmatic sulfide inclusions. A

  • OlsonGregoryA1978.pdf

    Creator:
    Olson, Gregory A.
    Full Text:
    AN ABSTRACT OF THE THESIS OF Gregory A. Olson for the degree

  • Plate2.jpg

    Creator:
    Olson, Gregory A.

  • Plate 1.jpg

    Creator:
    Olson, Gregory A.

  • Comparing Random and Nonrandom Spatial Patterns of Artifacts within Lithostratigraphic Unit 3 at Cooper’s Ferry, Idaho

    Creator:
    Gregory, Alex R.
    Abstract:
    Archaeological investigations at the Cooper's Ferry site in Western Idaho have recovered cultural remains dating to 16,000 years ago, suggesting the oldest human occupation recorded in North America. However, many archaeologists have argued the initial peopling of North America occurred no earlier than the opening of an ice-free corridor between...
    Resource Type:
    Masters Thesis
    Full Text:
    , Idaho by Alex Gregory A THESIS submitted to Oregon State University in partial fulfillment

  • McDonald.zip

    Creator:
    McDonald, Gregory D. (Gregory Douglas), 1962-
    Abstract:
    A change to a warmer, drier climate beginning as early as 1900 was responsible for triggering a dramatic, rapid retreat of Collier Glacier, Oregon, between 1924 and 1940. Although there was a dramatic decrease in precipitation contemporaneous with this observed "step-function" response of mass loss, it is unclear if climate...

  • AppendixB3.XLS

    Creator:
    McDonald, Gregory D. (Gregory Douglas), 1962-
    Abstract:
    A change to a warmer, drier climate beginning as early as 1900 was responsible for triggering a dramatic, rapid retreat of Collier Glacier, Oregon, between 1924 and 1940. Although there was a dramatic decrease in precipitation contemporaneous with this observed "step-function" response of mass loss, it is unclear if climate...

  • AppendixB2.XLS

    Creator:
    McDonald, Gregory D. (Gregory Douglas), 1962-
    Abstract:
    A change to a warmer, drier climate beginning as early as 1900 was responsible for triggering a dramatic, rapid retreat of Collier Glacier, Oregon, between 1924 and 1940. Although there was a dramatic decrease in precipitation contemporaneous with this observed "step-function" response of mass loss, it is unclear if climate...

  • AppendixB1.XLS

    Creator:
    McDonald, Gregory D. (Gregory Douglas), 1962-
    Abstract:
    A change to a warmer, drier climate beginning as early as 1900 was responsible for triggering a dramatic, rapid retreat of Collier Glacier, Oregon, between 1924 and 1940. Although there was a dramatic decrease in precipitation contemporaneous with this observed "step-function" response of mass loss, it is unclear if climate...