{"id":{"repo_id":"rice","oai_identifier":"oai:repository.rice.edu:1911/13635"},"canonical_url":"https://search.dev.ndltd.org/etd/rice/oai:repository.rice.edu:1911/13635","repository":{"repo_id":"rice","name":"Rice University","base_url":"https://repository.rice.edu/server/oai/request"},"display":{"title":"Fluvial influence on high-frequency sedimentary cycle geometry: The transition from strandplain to deltaic deposition in the Cretaceous Point Lookout Sandstone, San Juan Basin, Colorado","abstract":"The Point Lookout Sandstone undergoes an abrupt transition from strandplain-dominated to deltaic-dominated deposition in the northwestern part of the San Juan Basin near Durango, Colorado. The onset of deltaic deposition is preceded by a base level fall and development of a Type 2 sequence boundary as evidenced by a basinward shift in shoreline facies expressed as distributary channel sandstones overlying shoreface deposits. Deposition in the study area, therefore, represents late highstand systems tract progradation and subsequent shelf-margin systems tract deltaic deposition. Posamentier and Vail's (1988) model of deposition during base-level fail in the absence of fluvial incision predicts many of the stratigraphic relationships observed in the field, and provides the best sequence stratigraphic model for deposition within the study area.","abstract_html":"The Point Lookout Sandstone undergoes an abrupt transition from strandplain-dominated to deltaic-dominated deposition in the northwestern part of the San Juan Basin near Durango, Colorado. The onset of deltaic deposition is preceded by a base level fall and development of a Type 2 sequence boundary as evidenced by a basinward shift in shoreline facies expressed as distributary channel sandstones overlying shoreface deposits. Deposition in the study area, therefore, represents late highstand systems tract progradation and subsequent shelf-margin systems tract deltaic deposition. Posamentier and Vail's (1988) model of deposition during base-level fail in the absence of fluvial incision predicts many of the stratigraphic relationships observed in the field, and provides the best sequence stratigraphic model for deposition within the study area.","abstract_has_math":false,"creators":["Crandall, Gregg Armand"],"institution":"Rice University","degree_name":"Master of Arts","degree_level":"Masters","degree_discipline":"Natural Sciences","degree_department":null,"school":null,"contributors":[],"advisors":["Dunbar, Robyn Wright"],"committee_chairs":[],"committee_members":[],"year":1992,"date_issued":"1992","date_published":"1992","updated_at":"2026-07-24T04:10:24Z","subjects":["Geology"],"languages":["eng"],"rights":["Copyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder."],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/1911/13635","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Dunbar, Robyn Wright"]},{"key":"dc:creator","label":"Author","values":["Crandall, Gregg Armand"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2009-06-04T00:26:45Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2009-06-04T00:26:45Z"]},{"key":"dc:date.issued","label":"Date","values":["1992"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Natural Sciences"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Masters"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Arts"]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["Rice University"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Geology"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder."]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://hdl.handle.net/1911/13635"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["The Point Lookout Sandstone undergoes an abrupt transition from strandplain-dominated to deltaic-dominated deposition in the northwestern part of the San Juan Basin near Durango, Colorado. The onset of deltaic deposition is preceded by a base level fall and development of a Type 2 sequence boundary as evidenced by a basinward shift in shoreline facies expressed as distributary channel sandstones overlying shoreface deposits. Deposition in the study area, therefore, represents late highstand systems tract progradation and subsequent shelf-margin systems tract deltaic deposition. Posamentier and Vail's (1988) model of deposition during base-level fail in the absence of fluvial incision predicts many of the stratigraphic relationships observed in the field, and provides the best sequence stratigraphic model for deposition within the study area."]},{"key":"dc:format.mimetype","label":"Dc Format Mimetype","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Fluvial influence on high-frequency sedimentary cycle geometry: The transition from strandplain to deltaic deposition in the Cretaceous Point Lookout Sandstone, San Juan Basin, Colorado"]}]}],"canonical_facts":{"dc:contributor.advisor":["Dunbar, Robyn Wright"],"dc:creator":["Crandall, Gregg Armand"],"dc:date.accessioned":["2009-06-04T00:26:45Z"],"dc:date.available":["2009-06-04T00:26:45Z"],"dc:date.issued":["1992"],"dc:description.abstract":["The Point Lookout Sandstone undergoes an abrupt transition from strandplain-dominated to deltaic-dominated deposition in the northwestern part of the San Juan Basin near Durango, Colorado. The onset of deltaic deposition is preceded by a base level fall and development of a Type 2 sequence boundary as evidenced by a basinward shift in shoreline facies expressed as distributary channel sandstones overlying shoreface deposits. Deposition in the study area, therefore, represents late highstand systems tract progradation and subsequent shelf-margin systems tract deltaic deposition. Posamentier and Vail's (1988) model of deposition during base-level fail in the absence of fluvial incision predicts many of the stratigraphic relationships observed in the field, and provides the best sequence stratigraphic model for deposition within the study area."],"dc:format.mimetype":["application/pdf"],"dc:identifier.uri":["https://hdl.handle.net/1911/13635"],"dc:language.iso":["eng"],"dc:rights":["Copyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder."],"dc:subject":["Geology"],"dc:title":["Fluvial influence on high-frequency sedimentary cycle geometry: The transition from strandplain to deltaic deposition in the Cretaceous Point Lookout Sandstone, San Juan Basin, Colorado"],"dc:type":["Thesis"],"thesis:degree_discipline":["Natural Sciences"],"thesis:degree_level":["Masters"],"thesis:degree_name":["Master of Arts"],"thesis:institution_name":["Rice University"]},"updated_at":"2026-07-24T04:10:24Z"}