All Things Cretaceous:
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Cretaceous Sea Level

This page was written by Jen Aschoff as part of the DLESE Community Services Project: Integrating Research in Education.

Australian coastline; a modern analog to the Cretaceous.
Australian coastline; a modern analog to the Cretaceous. Details

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Cretaceous Sea Level and Seaways

Resources related to Cretaceous sea-level fluctuation and seaways.
  • Cretaceous Tethyan Stratigraphy. The objective of this site is to construct a database for Cretaceous Tethyan stratigraphy. Stratigraphic information, photos and charts are arranged by geologic stage in a vertical menu. The types of information found in this site include basin reference sections, basin or platform control sections, biostratigraphic and sequence stratigraphic data, as well as other data that support and refine correlations. Access to scientific forums about Tethyan stratigraphy and a list of relevant links are also provided. (more info)
  • Paleomap Project. Paleogeographic globes that move, tilt, and spin to allow viewing from different angles, and animated plate-tectonic maps that show plate movement and sea-floor spreading for different periods in earth history are available for purchase. Paleomap Project is the creation of Christopher R. Scotese at the University of Texas at Arlington. (more info)
  • Plate Tectonic Animations. This site contains a variety of plate tectonic animations, paleogeographic reconstructions, and paleoclimate animations. Each animation is viewable from the web page, and has accompanying text that explains the events portrayed. Examples include the formation of the ocean basins, the assembly and breakup of Pangaea, and the collision of India and Asia. (more info)
  • Stratigraphic Cross Section of Northeast Texas. Cretaceous sedimentary rocks of Northeast Texas provide important clues about paleogeography, paleotectonics, and sea level fluctuation. This website describes several of these rock units and the geologic information they supply. An unpublished report with a thorough discussion, map, cross section, and numerous references is provided. Specific topics include Cretaceous stratigraphy, lithostratigraphic and biostratigraphic correlation, ammonites, Western Interior Seaway, Skull Creek Seaway, paleogeography, and paleotectonics. (more info)

Cretaceous Eustatic Fluctuations

Resources describing major sea level fluctuations and strata that record such fluctuations.
  • Middle to Lower Cretaceous Stratigraphy, Offshore Kuwait. Cretaceous strata form an important component of petroleum plays in the Middle East. This report reviews the history of petroleum exploration in offshore Kuwait, and discusses the tectono-stratigraphic evolution of Kuwait through the Cretaceous Period. Maps, cross sections, correlation charts, nanofossil data, synthetic seismograms, a sea level curve and seismic profiles accompany this extensive text. ( This site is likely no longer available. )
  • Regional Paleogeographic Views of Earth History. Regional paleogeographic reconstructions of North America, Colorado Plateau, SW North America, and Mesozoic terrane accretion. These beautiful reconstructions by geologist Ron Blakey (formerly Northern Arizona University) and Colorado Plateau Geosystems, Inc. (more info)
  • Stratigraphic Cross Section of Northeast Texas. Cretaceous sedimentary rocks of Northeast Texas provide important clues about paleogeography, paleotectonics, and sea level fluctuation. This website describes several of these rock units and the geologic information they supply. An unpublished report with a thorough discussion, map, cross section, and numerous references is provided. Specific topics include Cretaceous stratigraphy, lithostratigraphic and biostratigraphic correlation, ammonites, Western Interior Seaway, Skull Creek Seaway, paleogeography, and paleotectonics. (more info)
  • Western Interior Seaway. The Western Interior Seaway is an ancient intracontinental seaway that occupied much of modern western North America and existed throughout much of the Cretaceous Period. This site discusses the physiography, origin, evolution and biologic significance of this intriguing geologic feature. Specific topics include sea level fluctuation, marine and non-marine life, and sedimentary rocks associated with the Western Interior Seaway. A paleogeographic map and discussion are provided with numerous links to additional information on related topics. (more info)




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