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Dunbar, Robyn Wright Crandall, Gregg Armand 2009-06-04T00:26:45Z 2009-06-04T00:26:45Z 1992 Crandall, Gregg Armand. "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." (1992) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/13635">https://hdl.handle.net/1911/13635</a>. https://hdl.handle.net/1911/13635 Thesis Geol. 1992 Crandall 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. 149 p. application/pdf eng 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. Geology 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 Thesis Text Earth Science Natural Sciences Rice University Masters Master of Arts open.access