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The AAPG/Datapages Combined Publications Database
West Texas Geological Society
Abstract
The California-Tamaulipas Geosuture: A Review of Some Facts, Interpretations and Speculations
Abstract
“The most interesting scientific questions invariably seem to deal with that which is just beyond our powers of observation ...” [and explanation] (Helwig, 1974). [and G.E.M., this paper].
A fundamental, crustal fracture zone (the California/Tamaulipas geodiscontinuity), characterized by continuing weakness and deformation since the Precambrian, has been the locale for development of a zone of tectonic collage (the California/Tamaulipas geosuture). The geosuture is as much as hundreds of kilometers in width and exists for about 2500 kilometers from the modern California/Nevada region to the Gulf of Mexico. Both the geodiscontinuity and the geosuture can be deduced from geologic data of sundry kinds but full details of these fundamental features are yet to be developed (See Busby-Spera, 1988; Coney, 1959; Coney and Campa, 1987; Murray, 1986 and Stewart, 1988).
The northern boundary of the geosuture is the Walker Lane/Texas Lineament whereas the Mojave/Sonora and Torreón/Saltillo/Monterrey fracture zones form the approximate southern edge (See Figure 1).
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