{"id":{"repo_id":"unlv","oai_identifier":"oai:oasis.library.unlv.edu:rtds-1016"},"canonical_url":"https://search.dev.ndltd.org/etd/unlv/oai:oasis.library.unlv.edu:rtds-1016","repository":{"repo_id":"unlv","name":"University of Nevada - Las Vegas","base_url":"https://oasis.library.unlv.edu/do/oai/"},"display":{"title":"Morphology and development of the Red Rock Canyon alluvial fan, Clark County, Nevada","abstract":"Changes in morphology and pedogenic carbonate accumulation establish relative ages of a chronosequence of calcic soils and pedogenic calcretes that underlie four surfaces identified on the Red Rock Canyon alluvial fan. All surfaces identified are formed of limestone alluvium, occur at elevations of 853 m, and share the same climate and vegetation. These surfaces were mapped and delimited by color, texture, dissection, and soil development and were ranked in relative age by elevation and topographic position; Because of difficulty in measuring pedogenic carbonate in soils derived from calcareous alluvium, a technique employing macroscopic and microscopic visual determinations, combined with Chittick analyses, was used to estimate volumetric pedogenic carbonate. From morphological correlation with {dollar}\\sp{234}{dollar}U/{dollar}\\sp{230}{dollar}Th dated calcic soils and pedogenic calcretes developed on nearby Kyle Canyon alluvial fan, rates of pedogenic carbonate accumulation in soils underlying Surfaces 2 and 3 range from 0.22 to 0.44 g/cm{dollar}\\sp2{dollar}/ky.","abstract_html":"Changes in morphology and pedogenic carbonate accumulation establish relative ages of a chronosequence of calcic soils and pedogenic calcretes that underlie four surfaces identified on the Red Rock Canyon alluvial fan. All surfaces identified are formed of limestone alluvium, occur at elevations of 853 m, and share the same climate and vegetation. These surfaces were mapped and delimited by color, texture, dissection, and soil development and were ranked in relative age by elevation and topographic position; Because of difficulty in measuring pedogenic carbonate in soils derived from calcareous alluvium, a technique employing macroscopic and microscopic visual determinations, combined with Chittick analyses, was used to estimate volumetric pedogenic carbonate. From morphological correlation with {dollar}\\sp{234}{dollar}U/{dollar}\\sp{230}{dollar}Th dated calcic soils and pedogenic calcretes developed on nearby Kyle Canyon alluvial fan, rates of pedogenic carbonate accumulation in soils underlying Surfaces 2 and 3 range from 0.22 to 0.44 g/cm{dollar}\\sp2{dollar}/ky.","abstract_has_math":false,"creators":["McDonnell-Canan, Cheryl"],"institution":"University of Nevada, Las Vegas","degree_name":"Master of Science (MS)","degree_level":"Thesis","degree_discipline":"Geoscience","degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1988,"date_issued":"1988-01-01T08:00:00Z","date_published":"1988-01-01T08:00:00Z","updated_at":"2026-07-24T05:23:59Z","subjects":[],"languages":["English"],"rights":["IN COPYRIGHT. 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These surfaces were mapped and delimited by color, texture, dissection, and soil development and were ranked in relative age by elevation and topographic position; Because of difficulty in measuring pedogenic carbonate in soils derived from calcareous alluvium, a technique employing macroscopic and microscopic visual determinations, combined with Chittick analyses, was used to estimate volumetric pedogenic carbonate. From morphological correlation with {dollar}\\sp{234}{dollar}U/{dollar}\\sp{230}{dollar}Th dated calcic soils and pedogenic calcretes developed on nearby Kyle Canyon alluvial fan, rates of pedogenic carbonate accumulation in soils underlying Surfaces 2 and 3 range from 0.22 to 0.44 g/cm{dollar}\\sp2{dollar}/ky."]},{"key":"dc:format","label":"Dc Format","values":["pdf"]},{"key":"dc:title","label":"Title","values":["Morphology and development of the Red Rock Canyon alluvial fan, Clark County, Nevada"]}]}],"canonical_facts":{"dc:creator":["McDonnell-Canan, Cheryl"],"dc:description.abstract":["Changes in morphology and pedogenic carbonate accumulation establish relative ages of a chronosequence of calcic soils and pedogenic calcretes that underlie four surfaces identified on the Red Rock Canyon alluvial fan. All surfaces identified are formed of limestone alluvium, occur at elevations of 853 m, and share the same climate and vegetation. These surfaces were mapped and delimited by color, texture, dissection, and soil development and were ranked in relative age by elevation and topographic position; Because of difficulty in measuring pedogenic carbonate in soils derived from calcareous alluvium, a technique employing macroscopic and microscopic visual determinations, combined with Chittick analyses, was used to estimate volumetric pedogenic carbonate. From morphological correlation with {dollar}\\sp{234}{dollar}U/{dollar}\\sp{230}{dollar}Th dated calcic soils and pedogenic calcretes developed on nearby Kyle Canyon alluvial fan, rates of pedogenic carbonate accumulation in soils underlying Surfaces 2 and 3 range from 0.22 to 0.44 g/cm{dollar}\\sp2{dollar}/ky."],"dc:format":["pdf"],"dc:identifier":["10.25669/7bon-wbny","https://oasis.library.unlv.edu/rtds/17","https://oasis.library.unlv.edu/context/rtds/article/1016/viewcontent/uc.pdf"],"dc:language":["English"],"dc:publisher":["University of Nevada, Las Vegas"],"dc:rights":["IN COPYRIGHT. For more information about this rights statement, please visit http://rightsstatements.org/vocab/InC/1.0/"],"dc:title":["Morphology and development of the Red Rock Canyon alluvial fan, Clark County, Nevada"],"dc:type":["Text"],"thesis:degree_discipline":["Geoscience"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["Master of Science (MS)"]},"updated_at":"2026-07-24T05:23:59Z"}