Author: California. Department of Water Resources. Division of Design and Construction
Publisher:
ISBN:
Category : Faults (Geology)
Languages : en
Pages : 42
Book Description
San Gabriel Fault Study
Post-Miocene Right Separation on the San Gabriel and Vasquez Creek Faults, with Supporting Chronostratigraphy, Western San Gabriel Mountains, California
Author: Larry A. Beyer
Publisher:
ISBN:
Category : Faults (Geology)
Languages : en
Pages : 52
Book Description
The right lateral San Gabriel Fault Zone in southern California extends from the northwestern corner of the Ridge Basin southeastward to the eastern end of the San Gabriel Mountains. It bifurcates to the southeast in the northwestern San Gabriel Mountains. The northern and older branch curves eastward in the range interior. The southern younger branch, the Vasquez Creek Fault, curves southeastward to merge with the Sierra Madre Fault Zone, which separates the San Gabriel Mountains from the northern Los Angeles Basin margin. An isolated exposure of partly macrofossiliferous nearshore shallow-marine sandstone, designated the Gold Canyon beds, is part of the southwest wall of the fault zone 5.5 km northwest of the bifurcation. These beds contain multiple subordinate breccia-conglomerate lenses and are overlain unconformably by folded Pliocene-Pleistocene Saugus Formation fanglomerate. The San Gabriel Fault Zone cuts both units.
Publisher:
ISBN:
Category : Faults (Geology)
Languages : en
Pages : 52
Book Description
The right lateral San Gabriel Fault Zone in southern California extends from the northwestern corner of the Ridge Basin southeastward to the eastern end of the San Gabriel Mountains. It bifurcates to the southeast in the northwestern San Gabriel Mountains. The northern and older branch curves eastward in the range interior. The southern younger branch, the Vasquez Creek Fault, curves southeastward to merge with the Sierra Madre Fault Zone, which separates the San Gabriel Mountains from the northern Los Angeles Basin margin. An isolated exposure of partly macrofossiliferous nearshore shallow-marine sandstone, designated the Gold Canyon beds, is part of the southwest wall of the fault zone 5.5 km northwest of the bifurcation. These beds contain multiple subordinate breccia-conglomerate lenses and are overlain unconformably by folded Pliocene-Pleistocene Saugus Formation fanglomerate. The San Gabriel Fault Zone cuts both units.
Displacement Along the San Andreas Fault, California
Author: John C. Crowell
Publisher: Geological Society of America
ISBN: 0813720710
Category : Faults (Geology)
Languages : en
Pages : 72
Book Description
Publisher: Geological Society of America
ISBN: 0813720710
Category : Faults (Geology)
Languages : en
Pages : 72
Book Description
South Front of the San Gabriel Mountains, Southern California
Author: William B. Bull
Publisher:
ISBN:
Category : Erosion
Languages : en
Pages : 304
Book Description
Publisher:
ISBN:
Category : Erosion
Languages : en
Pages : 304
Book Description
U.S. Geological Survey Professional Paper
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 48
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 48
Book Description
Geologic and Geomorphic Investigation of the San Gabriel Fault Zone, Los Angeles and Ventura Counties, California
Author: F. Harold Weber
Publisher:
ISBN:
Category : Faults (Geology)
Languages : en
Pages : 96
Book Description
Publisher:
ISBN:
Category : Faults (Geology)
Languages : en
Pages : 96
Book Description
The San Andreas Fault System in the Vicinity of the Central Transverse Ranges Province, Southern California
Author: Jonathan C. Matti
Publisher:
ISBN:
Category : Faults (Geology)
Languages : en
Pages : 110
Book Description
Publisher:
ISBN:
Category : Faults (Geology)
Languages : en
Pages : 110
Book Description
A Stable Isotope Study of Fluid-rock Interactions in the San Gabriel Fault Zone and Its Relationship to Seismic Process
Author: Yi Fang
Publisher:
ISBN: 9781303765889
Category : Fault zones
Languages : en
Pages : 342
Book Description
Abstract: Integrated field, alteration and stable isotope studies of the seismogenic paleodepths of the San Gabriel Fault (SGF) indicate that fluids have played a significant role in weakening the fault zone. Field and alteration studies suggest that the abundant hydrous minerals in the deformational zone were broken down from anhydrous minerals through reacting with external fluids under elevated pore-fluid pressure. Stable isotope data reveal two possible sources of these fluids: (1) Low mineral 8D ( -7 7 to -95%o) and 5180 values (2.8 to 6.8%o) are consistent with low carbonate 813C values ( -9.9 to -12.7%o) at Little Tujunga and Dillon Divide, suggesting an involvement of meteorichydrothermal water at shallower paleodepths of the SGF. (2) Relatively high mineral 8D ( -67 to -76%o), 8lsO values (4.6 to 8.8%o) and high carbonate 813C values ( -3.8 to -6.8%o) from Wildwood, Vogel Flat and Red Box Gap suggest deep seated metamorphic/magmatic water infiltrated upward through the fault.
Publisher:
ISBN: 9781303765889
Category : Fault zones
Languages : en
Pages : 342
Book Description
Abstract: Integrated field, alteration and stable isotope studies of the seismogenic paleodepths of the San Gabriel Fault (SGF) indicate that fluids have played a significant role in weakening the fault zone. Field and alteration studies suggest that the abundant hydrous minerals in the deformational zone were broken down from anhydrous minerals through reacting with external fluids under elevated pore-fluid pressure. Stable isotope data reveal two possible sources of these fluids: (1) Low mineral 8D ( -7 7 to -95%o) and 5180 values (2.8 to 6.8%o) are consistent with low carbonate 813C values ( -9.9 to -12.7%o) at Little Tujunga and Dillon Divide, suggesting an involvement of meteorichydrothermal water at shallower paleodepths of the SGF. (2) Relatively high mineral 8D ( -67 to -76%o), 8lsO values (4.6 to 8.8%o) and high carbonate 813C values ( -3.8 to -6.8%o) from Wildwood, Vogel Flat and Red Box Gap suggest deep seated metamorphic/magmatic water infiltrated upward through the fault.
Reflections on the San Andreas & San Gabriel Faults
Author: Robert H. Paschall
Publisher:
ISBN:
Category : San Andreas Fault (Calif.)
Languages : en
Pages : 116
Book Description
Publisher:
ISBN:
Category : San Andreas Fault (Calif.)
Languages : en
Pages : 116
Book Description
The San Andreas Fault System, California
Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 312
Book Description
An overview of the history, geology, geomorphology, geophysics, and seismology of the most well known plate tectonic boundary in the world.
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 312
Book Description
An overview of the history, geology, geomorphology, geophysics, and seismology of the most well known plate tectonic boundary in the world.