Temperature and pressure of mylonitization in a Tertiary extensional shear zone, Ruby Mountains-East Humboldt Range, Nevada: Tectonic implications
Journal Article
·
· Geology; (USA)
- Univ. of Wyoming, Laramie (USA)
- Massachusetts Institute of Technology, Cambridge (USA)
In the northern Ruby Mountains-East Humboldt Range metamorphic core complex, a kinematically coupled mylonitic shear zone and brittle-plastic detachment fault compose a low-angle extensional fault system that is mid-Tertiary in age. Geothermobarometry of pelitic schists from the mylonitic shear zone yields a temperature and pressure estimate of 820-900 K (580-620{degree}C) and 310-370 MPa (3.1-3.7 kbar) for mylonite petrogenesis. The shear-zone-detachment-fault system excised 11-12 km of crustal section and accommodated at least 15-17 km of normal-sense dip slip.
- OSTI ID:
- 5796492
- Journal Information:
- Geology; (USA), Journal Name: Geology; (USA) Vol. 19:1; ISSN GLGYB; ISSN 0091-7613
- Country of Publication:
- United States
- Language:
- English
Similar Records
The Chunky Gal Mountain fault-detachment-normal fault providing evidence for Early-to-Middle Paleozoic extensional unroofing of the eastern Blue Ridge, or folded thrust
Fission track thermochronologic constraints on the timing and nature of major Middle Tertiary extension, Ruby Mountains - East Humboldt Range, Nevada
Differential stress, strain rate, and temperatures of mylonitization in the Ruby Mountains, Nevada: Implications for the rate and duration of uplift
Conference
·
Sun Feb 28 23:00:00 EST 1993
· Geological Society of America, Abstracts with Programs; (United States)
·
OSTI ID:5950861
Fission track thermochronologic constraints on the timing and nature of major Middle Tertiary extension, Ruby Mountains - East Humboldt Range, Nevada
Conference
·
Mon Dec 31 23:00:00 EST 1984
· Geol. Soc. Am., Abstr. Programs; (United States)
·
OSTI ID:6643497
Differential stress, strain rate, and temperatures of mylonitization in the Ruby Mountains, Nevada: Implications for the rate and duration of uplift
Journal Article
·
Sun Jun 10 00:00:00 EDT 1990
· Journal of Geophysical Research; (United States)
·
OSTI ID:5009679
Related Subjects
58 GEOSCIENCES
580000* -- Geosciences
CENOZOIC ERA
FEDERAL REGION IX
GEOLOGIC AGES
GEOLOGIC FAULTS
GEOLOGIC FORMATIONS
GEOLOGIC FRACTURES
GEOLOGIC STRUCTURES
GEOLOGY
GEOTHERMOMETRY
METAMORPHIC ROCKS
MOUNTAINS
NEVADA
NORTH AMERICA
ORIGIN
PETROGENESIS
PETROGRAPHY
RESERVOIR PRESSURE
RESERVOIR TEMPERATURE
ROCKS
SCHISTS
TECTONICS
TERTIARY PERIOD
USA
580000* -- Geosciences
CENOZOIC ERA
FEDERAL REGION IX
GEOLOGIC AGES
GEOLOGIC FAULTS
GEOLOGIC FORMATIONS
GEOLOGIC FRACTURES
GEOLOGIC STRUCTURES
GEOLOGY
GEOTHERMOMETRY
METAMORPHIC ROCKS
MOUNTAINS
NEVADA
NORTH AMERICA
ORIGIN
PETROGENESIS
PETROGRAPHY
RESERVOIR PRESSURE
RESERVOIR TEMPERATURE
ROCKS
SCHISTS
TECTONICS
TERTIARY PERIOD
USA