Mechanistic solutions to the opening of the Gulf of Mexico
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Abstract
Two mechanistic models—which are unlike the traditional plate-tectonic landfill models used for most proposed Pangea reconstructions of the Yucatán block—relate the Mesozoic opening of the Gulf of Mexico directly to the movement of the North and South American plates: (1) a previous piggyback model in which Yucatán moves with South America out of the western gulf and (2) a new edge-driven model in which the motion of the Yucatán block is caused by forces applied to its margins by the movement of the North and South American plates. In the second model, Yucatán moves out of the northern Gulf of Mexico as a gear or roller bearing. On the basis of magnetic edge anomalies around the gulf, this edge-driven model predicts that from the Bathonian to Tithonian (∼170 to ∼150 Ma), Yucatán was rotated ∼60° counterclockwise as a rigid block between North and South America with rift propagation and extension occurring simultaneously in the Gulf of Mexico and Yucatan Basin.
Study Area
Publication type | Article |
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Publication Subtype | Journal Article |
Title | Mechanistic solutions to the opening of the Gulf of Mexico |
Series title | Geology |
DOI | 10.1130/0091-7613(1994)022<0507:MSTTOO>2.3.CO;2 |
Volume | 22 |
Issue | 6 |
Year Published | 1994 |
Language | English |
Publisher | Geological Society of America |
Publisher location | Boulder, CO |
Contributing office(s) | Woods Hole Coastal and Marine Science Center |
Description | 4 p. |
First page | 507 |
Last page | 510 |
Other Geospatial | Gulf of Mexico |
Online Only (Y/N) | N |
Additional Online Files (Y/N) | N |
Google Analytic Metrics | Metrics page |