Index Catalog // Hyrax

Effective attenuation lengths of cosmic rays producing ¹⁰Be and ²⁶Al in quartz: Implications for exposure age dating

O Criador:: Brown, Erik Thorson, Brook, Edward J., Raisbeck, Grant M., Yiou, Francoise, and Kurz, Mark D.
Abstract:: We have measured cosmic ray produced ¹⁰Be (t₁/₂ = 1.5 My) and ²⁶Al (t₁/₂ = 0.72 My) as functions of depth in a core of quartz sandstone bedrock collected in South Victoria Land, Antarctica. These data were used to place limits on the exposure age and erosion rate of the...
Resource Type:: Article
Full Text:: PRODUCING 10Be AND 26A1 IN QUARTZ: IMPLICATIONS FOR EXPOSURE AGE DATING Erik Thorson Brownl, Edward J

10Be exposure ages of erratic boulders in southern Norway and implications for the history of the Fennoscandian Ice Sheet

O Criador:: Goehring, Brent M.
Abstract:: This thesis focuses on the application of the cosmogenic nuclide Beryllium-10 (10Be) in an effort to better constrain the thickness history of the Fennoscandian Ice Sheet (FIS) at the Last Glacial Maximum (LGM) and into the Holocene, as well as begin to answer the long-standing question regarding the age and...
Resource Type:: Masters Thesis
Full Text:: Exposure Ages of Erratic Boulders in southern Norway and Implications for the history of the

In situ cosmogenic radiocarbon production and 2-D ice flow line modeling for an Antarctic blue ice area

O Criador:: Buizert, Christo, Petrenko, Vasilii V., Kavanaugh, Jeffrey L., Cuffey, Kurt M., Lifton, Nathaniel A., Brook, Edward J., and Severinghaus, Jeffrey P.
Abstract:: Radiocarbon measurements at ice margin sites and blue ice areas can potentially be used for ice dating, ablation rate estimates and paleoclimatic reconstructions. Part of the measured signal comes from in situ cosmogenic ¹⁴C production in ice, and this component must be well understood before useful information can be extracted...
Resource Type:: Article
Full Text:: cosmic rays are capable of producing a wide variety of terrestrial cosmogenic nuclei (TCN) (see Gosse and

Living with earthquakes in the Pacific Northwest

O Criador:: Yeats, Robert S.
Abstract:: In this expanded new edition of Living with Earthquakes, Robert Yeats, a leading authority on earthquakes in California and the Pacific Northwest, describes the threat posed by the Cascadia Subduction Zone, a great earthquake fault which runs for hundreds of miles offshore from British Columbia to northern California. New research...
Resource Type:: Book
Full Text:: clocks enable us to date the age of the Earth at about four and a half billion years and, in addition

Late Pleistocene and Holocene glacier and climate change

O Criador:: Marcott, Shaun Andrew
Abstract:: This dissertation presents results from three studies that address major scientific questions in glacial geology and paleoclimatology for the late Pleistocene and Holocene using relatively new geochemical and statistical techniques. Each of the studies attempts to answer a longstanding question in the respective field using geochemical or statistical methods that...
Resource Type:: Dissertation
Full Text:: in the systematics of cosmogenic surface exposure dating and 10Be extraction techniques. My

An Interdisciplinary approach towards understanding late Pleistocene ice sheet change

O Criador:: Cuzzone, Joshua K.
Abstract:: The results presented in this dissertation address a number of questions regarding late Pleistocene and Holocene ice-sheet and climate interactions, spanning disciplines involving paleoclimatology and atmospheric science. These studies use various techniques in geochemistry, climate modeling, and ice-sheet modeling to address ice- sheet response to climate and the attendant interactions...
Resource Type:: Dissertation
Full Text:: . Cuzzone for the degree of Doctor of Philosophy in Ocean, Earth, and Atmospheric Science presented on

Alpine glacier and pluvial lake records of late pleistocene climate variability in the western United States

O Criador:: Licciardi, Joseph M.
Resource Type:: Dissertation
Full Text:: geological settings where the use of other nuclides such as 10Be and 26Al is precluded. In order to use 3He

Interpreting geology in Yosemite National Park, California : a monument to strong granite, powerful glaciers, and the perseverance of life

O Criador:: Dunham, Sarah E.
Abstract:: This thesis develops a thematic, geology-based interpretive training manual for the interpretive staff at Yosemite National Park (YNP), California. The manual will help staff understand and convey geologic principles to park visitors who are all experiencing a dynamic landscape comprised of glacially-sculpted igneous rocks. Basic geology and the results of...
Resource Type:: Masters Thesis
Full Text:: THESIS OF Sarah E. Dunham for the degree of Master of Science in Geology presented on November 26

Controls on Process and Form in Alluvial and Bedrock Meandering Rivers

O Criador:: Zunka, John P. P.
Abstract:: Bedrock meandering rivers are sinuous channels that pair steep bedrock outside banks with lower gradient slip-off slopes on the inside of bends. These rivers have the potential to record information on climatic and tectonic “external” forcings in their morphology (e.g., longitudinal profiles, strath terraces, channel and valley dimensions). However, geology...
Resource Type:: Dissertation
Full Text:: and location of detailed bends for Buffalo River basin study site in Arkansas

Scaling, ash-driven bistability, and other agents of soilscape genesis discovered while digitally mapping soils of the Blue Mountains, Oregon

O Criador:: 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:: function in order to determine if evidence exists for soil-mediated bedrock denudation; and 4) the role of

Hyrax

Effective attenuation lengths of cosmic rays producing ¹⁰Be and ²⁶Al in quartz: Implications for exposure age dating

10Be exposure ages of erratic boulders in southern Norway and implications for the history of the Fennoscandian Ice Sheet

In situ cosmogenic radiocarbon production and 2-D ice flow line modeling for an Antarctic blue ice area

Living with earthquakes in the Pacific Northwest

Late Pleistocene and Holocene glacier and climate change

An Interdisciplinary approach towards understanding late Pleistocene ice sheet change

Alpine glacier and pluvial lake records of late pleistocene climate variability in the western United States

Interpreting geology in Yosemite National Park, California : a monument to strong granite, powerful glaciers, and the perseverance of life

Controls on Process and Form in Alluvial and Bedrock Meandering Rivers

Scaling, ash-driven bistability, and other agents of soilscape genesis discovered while digitally mapping soils of the Blue Mountains, Oregon

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