{"id":{"repo_id":"unlv","oai_identifier":"oai:oasis.library.unlv.edu:rtds-1867"},"canonical_url":"https://search.dev.ndltd.org/etd/unlv/oai:oasis.library.unlv.edu:rtds-1867","repository":{"repo_id":"unlv","name":"University of Nevada - Las Vegas","base_url":"https://oasis.library.unlv.edu/do/oai/"},"display":{"title":"Paleolimnology and paleoecology of the Coal Valley region, Lincoln County, Nevada","abstract":"During Pleistocene time, Coal Valley, Nevada, was situated between a pluvial climatic zone to the north and a non-pluvial climactic zone to the south. The Coal Lake section represents {dollar}>{dollar}20,000 years of continuous deposition, recording a saline lake phase (Early Coal Lake) present since at least 32,000 BP, evolving to a freshwater lake (Coal Lake Intermediate) {dollar}\\sim{dollar}28,000 BP. Maximum lake development (290 km{dollar}\\sp2{dollar} in area) was within 2000 years of {dollar}\\sim{dollar}20,000 BP, and was probably persistent through deglaciation. Ostracode ecology suggests that water salinity varied little through time, which may be indicative of consistently low ambient temperatures, high precipitation levels, and/or high basin seepage rates throughout the life of the lake. Coal Lake probably experienced more direct control by regional groundwater hydrology than by climate. The revised paleohydrologic index of Coal Valley is (Z{dollar}\\sb{\\rm cv}{dollar} = 0.11, compared to the previous value of 0.07, suggesting that the water balance of Coal Lake was higher than previously thought.","abstract_html":"During Pleistocene time, Coal Valley, Nevada, was situated between a pluvial climatic zone to the north and a non-pluvial climactic zone to the south. The Coal Lake section represents {dollar}>{dollar}20,000 years of continuous deposition, recording a saline lake phase (Early Coal Lake) present since at least 32,000 BP, evolving to a freshwater lake (Coal Lake Intermediate) {dollar}\\sim{dollar}28,000 BP. Maximum lake development (290 km{dollar}\\sp2{dollar} in area) was within 2000 years of {dollar}\\sim{dollar}20,000 BP, and was probably persistent through deglaciation. Ostracode ecology suggests that water salinity varied little through time, which may be indicative of consistently low ambient temperatures, high precipitation levels, and/or high basin seepage rates throughout the life of the lake. Coal Lake probably experienced more direct control by regional groundwater hydrology than by climate. The revised paleohydrologic index of Coal Valley is (Z{dollar}\\sb{\\rm cv}{dollar} = 0.11, compared to the previous value of 0.07, suggesting that the water balance of Coal Lake was higher than previously thought.","abstract_has_math":false,"creators":["Feig, Anthony Dean"],"institution":"University of Nevada, Las Vegas","degree_name":"Master of Science (MS)","degree_level":"Thesis","degree_discipline":"Geoscience","degree_department":null,"school":null,"contributors":["Frederick Bachhuber"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1998,"date_issued":"1998-01-01T08:00:00Z","date_published":"1998-01-01T08:00:00Z","updated_at":"2026-07-24T05:24:45Z","subjects":[],"languages":[],"rights":["IN COPYRIGHT. For more information about this rights statement, please visit http://rightsstatements.org/vocab/InC/1.0/"],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["https://oasis.library.unlv.edu/rtds/868"],"render_values":[{"text":"https://oasis.library.unlv.edu/rtds/868","href":"https://oasis.library.unlv.edu/rtds/868","code":true}]}]},"links":{"outbound_url":"https://doi.org/10.25669/gqdl-hsmj","outbound_label":"DOI","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Frederick Bachhuber"]},{"key":"dc:creator","label":"Author","values":["Feig, Anthony Dean"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:publisher","label":"Institution","values":["University of Nevada, Las Vegas"]},{"key":"dc:type","label":"Dc Type","values":["Text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Geoscience"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science (MS)"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:rights","label":"Dc Rights","values":["IN COPYRIGHT. For more information about this rights statement, please visit http://rightsstatements.org/vocab/InC/1.0/"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["10.25669/gqdl-hsmj","https://oasis.library.unlv.edu/rtds/868","https://oasis.library.unlv.edu/context/rtds/article/1867/viewcontent/uc.pdf"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["During Pleistocene time, Coal Valley, Nevada, was situated between a pluvial climatic zone to the north and a non-pluvial climactic zone to the south. The Coal Lake section represents {dollar}>{dollar}20,000 years of continuous deposition, recording a saline lake phase (Early Coal Lake) present since at least 32,000 BP, evolving to a freshwater lake (Coal Lake Intermediate) {dollar}\\sim{dollar}28,000 BP. Maximum lake development (290 km{dollar}\\sp2{dollar} in area) was within 2000 years of {dollar}\\sim{dollar}20,000 BP, and was probably persistent through deglaciation. Ostracode ecology suggests that water salinity varied little through time, which may be indicative of consistently low ambient temperatures, high precipitation levels, and/or high basin seepage rates throughout the life of the lake. Coal Lake probably experienced more direct control by regional groundwater hydrology than by climate. The revised paleohydrologic index of Coal Valley is (Z{dollar}\\sb{\\rm cv}{dollar} = 0.11, compared to the previous value of 0.07, suggesting that the water balance of Coal Lake was higher than previously thought."]},{"key":"dc:format","label":"Dc Format","values":["pdf"]},{"key":"dc:title","label":"Title","values":["Paleolimnology and paleoecology of the Coal Valley region, Lincoln County, Nevada"]}]}],"canonical_facts":{"dc:contributor":["Frederick Bachhuber"],"dc:creator":["Feig, Anthony Dean"],"dc:description.abstract":["During Pleistocene time, Coal Valley, Nevada, was situated between a pluvial climatic zone to the north and a non-pluvial climactic zone to the south. The Coal Lake section represents {dollar}>{dollar}20,000 years of continuous deposition, recording a saline lake phase (Early Coal Lake) present since at least 32,000 BP, evolving to a freshwater lake (Coal Lake Intermediate) {dollar}\\sim{dollar}28,000 BP. Maximum lake development (290 km{dollar}\\sp2{dollar} in area) was within 2000 years of {dollar}\\sim{dollar}20,000 BP, and was probably persistent through deglaciation. Ostracode ecology suggests that water salinity varied little through time, which may be indicative of consistently low ambient temperatures, high precipitation levels, and/or high basin seepage rates throughout the life of the lake. Coal Lake probably experienced more direct control by regional groundwater hydrology than by climate. The revised paleohydrologic index of Coal Valley is (Z{dollar}\\sb{\\rm cv}{dollar} = 0.11, compared to the previous value of 0.07, suggesting that the water balance of Coal Lake was higher than previously thought."],"dc:format":["pdf"],"dc:identifier":["10.25669/gqdl-hsmj","https://oasis.library.unlv.edu/rtds/868","https://oasis.library.unlv.edu/context/rtds/article/1867/viewcontent/uc.pdf"],"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":["Paleolimnology and paleoecology of the Coal Valley region, Lincoln County, Nevada"],"dc:type":["Text"],"thesis:degree_discipline":["Geoscience"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["Master of Science (MS)"]},"updated_at":"2026-07-24T05:24:45Z"}