Stuart E. Munro, Foster D. Smith, Jr., 1984. "The Uricafault zone, northeastern Venezuela", The Caribbean-South American Plate Boundary and Regional Tectonics, William E. Bonini, Robert B. Hargraves, Reginald Shagam
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The Urica fault zone is viewed as a major transpressive geosuture in the tectonic evolution of northeastern Venezuela. It can be traced for 350 km from the Coche fault zone on the northwest and, with less certainty, to the area of Tucupita on the southeast, right-lateral displacement being about 35 km. Interpretation of new seismic reflection data shows it as a broad zone of dislocation, 10 km or more in width, the "flower" pattern geometry being characteristic of transpressive strike-slip faults. It separates the Maturin sub-basin into a zone of compression, characterized by imbricate thrusting to the north, from one of tension, distinguished by normal fault sets to the south.