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BASIN ANALYSIS
Virginia T. McLemoreNew Mexico Bureau of Geology and Mineral
ResourcesNew Mexico Institute of Mining and
Technology, Socorro, NM
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Class notes
• Choose an article, read it, and report the important points back to the class– 10 min (NO LONGER)– Purpose of paper– Methods used– Conclusion of paper– Your evaluation
• Class schedule (April 3, 8, 17, 24, 29, May 8)• Field trip date
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What is basin analysis?
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What is basin analysis?
• Geologic method• Defining and
describing a sedimentary basin
• Analyze the sediment– Composition– Primary structures– Internal architecture
• Describe basin components– Backarc– Forearc– passive margin– Epicontinental– Extensional
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Controls of basins
• Sediment supply (uplift of source area)
• Subsidence (thrusting, flexing of the lithosphere)—regional tectonic activity
• Sea level (climate)
• The rates of these processes is more important then their magnitude.
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Rift basins
http://web.mala.bc.ca/earle/geol201/basin-types.htm
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Passive margin basins
http://web.mala.bc.ca/earle/geol201/basin-types.htm
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Subduction-related basins
http://web.mala.bc.ca/earle/geol201/basin-types.htm
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Subduction-related basins
http://web.mala.bc.ca/earle/geol201/basin-types.htm
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Subduction-related basins
http://web.mala.bc.ca/earle/geol201/basin-types.htm
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Subduction-related basins
http://web.mala.bc.ca/earle/geol201/basin-types.htm
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Intracontinental basin
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Intracontinental basin
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Syn-orogenic and post-orogenic
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DEPOSITIONAL ENVIRONMENTS
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http://www.eos.ubc.ca/resources/slidesets/clastic/clastic.html
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Depositional environments of sandstones
http://www.eos.ubc.ca/resources/slidesets/clastic/c.html
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Depositional environments of sandstones
http://www.eos.ubc.ca/resources/slidesets/clastic/c.html
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Depositional environments of sandstones
http://www.eos.ubc.ca/resources/slidesets/clastic/c.html
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Depositional environments of sandstones
http://www.eos.ubc.ca/resources/slidesets/clastic/c.html
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Overbank deposits
http://www.eos.ubc.ca/resources/slidesets/clastic/c.html
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Sandstone deposits
http://www.eos.ubc.ca/resources/slidesets/clastic/c.html
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Sandstone deposits
http://www.eos.ubc.ca/resources/slidesets/clastic/c.html
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Sandstone deposits
http://www.eos.ubc.ca/resources/slidesets/clastic/c.html
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Sandstone deposits
http://www.eos.ubc.ca/resources/slidesets/clastic/c.html
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Depositional environments of sandstones
http://www.eos.ubc.ca/resources/slidesets/clastic/c.html
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Depositional environments of sandstones
http://www.eos.ubc.ca/resources/slidesets/clastic/c.html
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Depositional environments of sandstones
http://www.eos.ubc.ca/resources/slidesets/clastic/c.html
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Depositional environments of sandstones
http://www.eos.ubc.ca/resources/slidesets/clastic/c.html
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Depositional environments of sandstones
http://www.eos.ubc.ca/resources/slidesets/clastic/c.html
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Depositional environments of sandstones
http://www.eos.ubc.ca/resources/slidesets/clastic/c.html
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Depositional environments of sandstones
http://www.eos.ubc.ca/resources/slidesets/clastic/c.html
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Depositional environments of sandstones
http://www.eos.ubc.ca/resources/slidesets/clastic/c.html
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Depositional environments of sandstones
http://www.eos.ubc.ca/resources/slidesets/clastic/c.html
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Depositional environments of sandstones
http://www.eos.ubc.ca/resources/slidesets/clastic/c.html
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Depositional environments of sandstones
http://www.eos.ubc.ca/resources/slidesets/clastic/c.html
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Depositional environments of sandstones
http://www.eos.ubc.ca/resources/slidesets/clastic/c.html
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Depositional environments of sandstones
http://www.eos.ubc.ca/resources/slidesets/clastic/c.html
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Depositional environments of sandstones
http://www.eos.ubc.ca/resources/slidesets/clastic/c.html
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Depositional environments of sandstones
http://www.eos.ubc.ca/resources/slidesets/clastic/c.html
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Depositional environments of sandstones
http://www.eos.ubc.ca/resources/slidesets/clastic/c.html
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Depositional environments of sandstones
http://www.eos.ubc.ca/resources/slidesets/clastic/c.html
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Depositional environments of shales
http://www.eos.ubc.ca/resources/slidesets/clastic/c.html
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Depositional environments of shales
http://www.eos.ubc.ca/resources/slidesets/clastic/c.html
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Depositional environments of shales
http://www.eos.ubc.ca/resources/slidesets/clastic/c.html
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Depositional environments of shales
http://www.eos.ubc.ca/resources/slidesets/clastic/c.html
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Depositional environments of shales
http://www.eos.ubc.ca/resources/slidesets/clastic/c.html
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Depositional environments of shales
http://www.eos.ubc.ca/resources/slidesets/clastic/c.html