Mid-Tertiary plutonism and mylonitization, South Mountains, central Arizona.

Stephen Reynolds; W. A. Rehrig

Mid-Tertiary plutonism and mylonitization, South Mountains, central Arizona.

Research output: Chapter in Book/Report/Conference proceeding › Chapter

Abstract

Rocks in the South Mountains are representative of rocks in metamorphic core complexes elsewhere in Arizona. Fabrics in mylonitic rocks indicate extension parallel to the ENE-trending lineation and flattening perpendicular to the gently dipping foliation. The fabric is well dated as Late Oligocene to Early Miocene (25-20 m.y. ago). Mylonitic deformation was followed by more brittle deformation which produced a chloritic breccia that overlies mylonitic plutonic rocks in the NE half of the arch. The chloritic breccia is probably related to normal faulting along a low-angle dislocation surface.A.P.

Original language	English (US)
Title of host publication	Cordilleran metamorphic core complexes
Editors	M.D. Crittenden Jr, P.J. Coney, G.H. Davis
Publisher	Memoir of the Geological Society of America, 153
Pages	159-175
Number of pages	17
State	Published - 1980
Externally published	Yes

ASJC Scopus subject areas

Earth and Planetary Sciences(all)
Environmental Science(all)

Cite this

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title = "Mid-Tertiary plutonism and mylonitization, South Mountains, central Arizona.",

abstract = "Rocks in the South Mountains are representative of rocks in metamorphic core complexes elsewhere in Arizona. Fabrics in mylonitic rocks indicate extension parallel to the ENE-trending lineation and flattening perpendicular to the gently dipping foliation. The fabric is well dated as Late Oligocene to Early Miocene (25-20 m.y. ago). Mylonitic deformation was followed by more brittle deformation which produced a chloritic breccia that overlies mylonitic plutonic rocks in the NE half of the arch. The chloritic breccia is probably related to normal faulting along a low-angle dislocation surface.A.P.",

author = "Stephen Reynolds and Rehrig, {W. A.}",

year = "1980",

language = "English (US)",

pages = "159--175",

editor = "{Crittenden Jr}, M.D. and P.J. Coney and G.H. Davis",

booktitle = "Cordilleran metamorphic core complexes",

publisher = "Memoir of the Geological Society of America, 153",

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T1 - Mid-Tertiary plutonism and mylonitization, South Mountains, central Arizona.

AU - Reynolds, Stephen

AU - Rehrig, W. A.

PY - 1980

Y1 - 1980

N2 - Rocks in the South Mountains are representative of rocks in metamorphic core complexes elsewhere in Arizona. Fabrics in mylonitic rocks indicate extension parallel to the ENE-trending lineation and flattening perpendicular to the gently dipping foliation. The fabric is well dated as Late Oligocene to Early Miocene (25-20 m.y. ago). Mylonitic deformation was followed by more brittle deformation which produced a chloritic breccia that overlies mylonitic plutonic rocks in the NE half of the arch. The chloritic breccia is probably related to normal faulting along a low-angle dislocation surface.A.P.

AB - Rocks in the South Mountains are representative of rocks in metamorphic core complexes elsewhere in Arizona. Fabrics in mylonitic rocks indicate extension parallel to the ENE-trending lineation and flattening perpendicular to the gently dipping foliation. The fabric is well dated as Late Oligocene to Early Miocene (25-20 m.y. ago). Mylonitic deformation was followed by more brittle deformation which produced a chloritic breccia that overlies mylonitic plutonic rocks in the NE half of the arch. The chloritic breccia is probably related to normal faulting along a low-angle dislocation surface.A.P.

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SP - 159

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BT - Cordilleran metamorphic core complexes

A2 - Crittenden Jr, M.D.

A2 - Coney, P.J.

A2 - Davis, G.H.

PB - Memoir of the Geological Society of America, 153

ER -

Mid-Tertiary plutonism and mylonitization, South Mountains, central Arizona.

Abstract

ASJC Scopus subject areas

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