Cretaceous Stratigraphy
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Colorado Plateau Stratigraphy
Resources containing information about Cretaceous Colorado Plateau stratigraphy.
- Coalbed Gas Resources of the Rocky Mountain Region. This fact sheet, provided by the US Geological Survey, summarizes the geology and production potential of sedimentary provinces that contain extensive coal deposits and significant coalbed methane gas resources in the Rocky Mountain region. The sheet supplies information about what coalbed methane is, where it occurs, how it is recovered and how geologists assess its distribution and quality. A map of resources within the Rocky Mountain region is provided with the text. (more info)
- Geologic Assessment of Coal in the Colorado Plateau. This site provides a portal to an extensive USGS report that summarizes the regional geology, stratigraphy and coal energy resources of the Colorado Plateau region. A map of Colorado Plateau resources and outcrop photos of Cretaceous strata exposed in the region are provided on this page with links to individual sections of the report. Additional maps, cross sections, stratigraphic columns and information about the geology, stratigraphy, coal deposits and resource recovery are also available. (more info)
- Geology Fieldnotes: Bryce Canyon National Park, Utah. This site features geologic information, maps, and visitor information for Bryce Canyon National Park. The discussion covers the geologic history of the area (Cretaceous Seaway), some of the stratigraphy (Claron Formation), and the process of differential erosion that produced the park's spectacular landforms ('hoodoos', spires, pinnacles). There are also brief discussions of Native American inhabitation of the area and 19th century exploration of the area by Europeans. Other materials include an image gallery, links to related websites, and general information about the park's education and intrepretive programs. (more info)
- Regional Paleogeographic Views of Earth History. This site presents a series of paleogeographic and plate-tectonic reconstructions that illustrate the broad patterns of the Earth's structural history. Reconstructions of North America, the Mediterranean, Central and Southern Asia, and global views are organized by both geographic region and time period and may be viewed by either category. There is also a Time Slice feature which gives a brief summary of the given time period and links to each of the three regional maps of that period. (more info)
Canadian and Alaskan Stratigraphy
Resources containing information about Cretaceous stratigraphy in Canada and Alaska.
- Revised Cretaceous and Tertiary Stratigraphic Nomenclature in the Colville Basin, Northern Alaska. Cretaceous and Tertiary strata exposed in northern Alaska record clastic sediment deposition within a foreland basin adjacent to the ancestral Brooks Range, and form part of an important petroleum play. The goal of this U.S. Geological Survey report is to synthesize the complex stratigraphy of this area into a more simplified scheme. It discusses the regional geology of northern Alaska and the stratigraphy of the Colville Basin in detail. Maps, cross sections, correlation charts, and numerous outcrop photos with detailed captions accompany the text. (more info)
Gulf Coast Stratigraphy
Resources containing information about Cretaceous stratigraphy in the Gulf of Mexico region.
European and Tethys Stratigraphy
Resources containing information about select European Cretaceous and Tethian stratigraphy.
- 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)
- Paleogeography. Palaeogeography is the geography of the ancient Earth; it aims to establish the arrangement of the continents and landforms through time. This site provides a discussion of paleogeography as a science and reviews continent configurations in Mesozoic to Cenozoic time, thereby placing each geologic Time Period into a historical geologic context. Information is arranged by time period and is illustrated with plate tectonic maps. (more info)
