Early Miocene mylonitization and detachment faulting, South Mountains, central Arizona ( USA).

Stephen Reynolds, M. Shafiqullah, P. E. Damon, E. Dewitt

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

The South Mountains of central Arizona are one of the geologically simplest metamorphic core complexes of the N American Cordillera. An early Miocene age of mylonitization is indicated by crosscutting relationships between mylonitic fabroc and a composite pluton dated at 22-25 Ma by Rb-Sr, U-Th-Pb, and K-Ar techniques. The kinematic agreement and close temporal association of mylonitization and detachment faulting support models in which the 2 processes are related to an evolving crustal shear zone that accommodated mid-Tertiary continental extension. -Authors

Original languageEnglish (US)
Pages (from-to)283-286
Number of pages4
JournalGeology
Volume14
Issue number4
DOIs
StatePublished - 1986
Externally publishedYes

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mylonitization
faulting
Miocene
mountain
cordillera
pluton
shear zone
kinematics

ASJC Scopus subject areas

  • Geology

Cite this

Early Miocene mylonitization and detachment faulting, South Mountains, central Arizona ( USA). / Reynolds, Stephen; Shafiqullah, M.; Damon, P. E.; Dewitt, E.

In: Geology, Vol. 14, No. 4, 1986, p. 283-286.

Research output: Contribution to journalArticle

Reynolds, Stephen ; Shafiqullah, M. ; Damon, P. E. ; Dewitt, E. / Early Miocene mylonitization and detachment faulting, South Mountains, central Arizona ( USA). In: Geology. 1986 ; Vol. 14, No. 4. pp. 283-286.
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