Late Cretaceous to early Tertiary ductile deformation: Catalina-Rincon metamorphic core complex, southeastern Arizona

Journal Article · Fri May 01 00:00:00 EDT 1987 · Geology; (United States)

DOI:https://doi.org/10.1130/0091-7613(1987)15<462:LCTETD>2.0.CO;2· OSTI ID:5276439

Bykerk-Kauffman, A; Janecke, S U

Detailed mapping and kinematic analysis have revealed east-vergent Late Cretaceous to early Tertiary ductile deformation in the eastern Santa Catalina Mountains within the Catalina-Rincon metamorphic core complex. A gently dipping tectonite fabric formed concurrently with greenschist to amphibolite facies metamorphism in Precambrian through Upper Cretaceous sedimentary and plutonic rocks. The tectonites contrast in age, lineation orientation, shear sense, and deformational style with younger mid-Tertiary mylonites that are kinematically coordinated with the detachment fault. The Late Cretaceous to early Tertiary deformation may reflect crustal thickening prior to mid-Tertiary extension of the complex.

• Research Organization: Univ. of Arizona, Tucson (USA)
• OSTI ID: 5276439
• Journal Information: Geology; (United States), Vol. 15:5
• Country of Publication: United States
• Language: English

Related Subjects

58 GEOSCIENCES
ARIZONA
GEOLOGIC DEPOSITS
DEFORMATION
CRETACEOUS PERIOD
GEOLOGIC FAULTS
GEOLOGIC HISTORY
MAPPING
METAMORPHIC ROCKS
MOUNTAINS
PLUTONIC ROCKS
SEDIMENTARY ROCKS
TECTONICS
TERTIARY PERIOD
CENOZOIC ERA
FEDERAL REGION IX
GEOLOGIC AGES
GEOLOGIC FRACTURES
GEOLOGIC STRUCTURES
IGNEOUS ROCKS
MESOZOIC ERA
NORTH AMERICA
ROCKS
USA
580100* - Geology &amp; Hydrology- (-1989)