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1 edition of Neotectonics and faulting in Southern California found in the catalog.

Neotectonics and faulting in Southern California

Neotectonics and faulting in Southern California

prepared for the 82nd annual meeting of the Cordilleran Section of the Geological Society of America, Los Angeles, California, March 25-28, 1986

  • 198 Want to read
  • 24 Currently reading

Published by GSA Cordilleran Section?] in [Los Angeles, Calif.? .
Written in English

    Subjects:
  • Geology -- California, Southern -- Guidebooks.,
  • Plate tectonics -- California, Southern -- Guidebooks.,
  • Faults (Geology) -- California, Southern -- Guidebooks.

  • Edition Notes

    Statementcompiled by Perry L. Ehlig.
    ContributionsEhlig, Perry L., Geological Society of America. Cordilleran Section. Meeting
    The Physical Object
    Pagination208 p. :
    Number of Pages208
    ID Numbers
    Open LibraryOL22179647M

    Neotectonics and Quaternary geology of the Hunter Mountain fault zone and Saline Valley region, southeastern California John A. Oswald*, Steven G. Wesnousky Center for Neotectonic Studies, Department of Geological Sciences, University of Nevada, Reno, Nevada , USA In addition to faulting within Grapevine Canyon and the main rangefront. neotectonics[¦nēōtek′täniks] (geology) The study of the most recent structures and structural history of the earth's crust, after the Miocene. Neotectonics (or recent tectonics), a branch of geotectonics devoted to the study of tectonic processes that first appeared during Neocene and Anthropogene times. These processes have led to changes.

    Neotectonics of a Segment of the San Andreas Fault, Southern California (USA) Geomorphological evidence for active strike-slip faulting includes such features as scarps, trenches, sag ponds, offset drainage lines, and fault planes with slickensides. In southern California, fault scarps that cut. Neotectonics definition, the study of geologically recent movements of the earth's crust and measurement of its local effects in order to develop techniques for predicting earthquakes. See more.

    Neotectonics. is the study of geologically recent motions of the Earth's crust, particularly those produced by earthquakes, with the goals of understanding the physics of earthquake recurrence, the growth of mountains, and the seismic hazard embodied in these processes.   The California Geological Survey (CGS) concluded that the Hollywood Fault is “active” (surface or near-surface displacement within about the l years). Likewise, adopted by City of Los Angeles regulations, the inferred active fault mandated site-specific, neotectonic and paleoseismic investigations for proposed construction of Author: Steven H. Kolthoff, Michael F. Mills, Roy J. Shlemon.


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Neotectonics and faulting in Southern California Download PDF EPUB FB2

Get this from a library. Neotectonics and faulting in Neotectonics and faulting in Southern California book California: guidebook and volume: prepared for the 82nd annual meeting of the Cordilleran Section of the Geological Society of America, Los Angeles, California, Marchfield trip numb 12, [Perry L Ehlig; Geological Society of America.

Cordilleran Section.;]. The crustal structure of the Peninsular Ranges batholith can be divided geophysically into two parts: (1) a western mafic part that is dense, magnetic, and characterized by relatively high seismic velocities (> km/s), low heat flow.

Neotectonics, a subdiscipline of tectonics, is the study of the motions and deformations of Earth's crust (geological and geomorphological processes) that are current or recent in geologic time.

The term may also refer to the motions/deformations in question themselves. Geologists refer to the corresponding time-frame as the neotectonic period, and to the preceding time as the palaeotectonic. The Coyote Mountains of southern California are bounded on the southwest by the Elsinore Fault, an active dextral fault within the San Andreas Fault zone.

According to Axen and Fletcher () and Dorsey and others (), rocks exposed in these mountains comprise a portion of the hanging wall of the east-vergent Salton Detachment Fault, which was active from the late Miocene Author: M.

Brenneman, A. Bykerk-Kauffman. "Right-lateral active faulting between southern Baja California and the Pacific plate: The Tosco-Abreojos fault", Geology of Me´xico: Celebrating the Centenary of the Geological Society of Me´xico, Susana A. Alaniz-Álvarez, Ángel F. Nieto-Samaniego. The north frontal fault system of the San Bernardino Mountains is made up of a number of disparate structural elements, each of which accommodates range-front deformation in a manner dictated by its geometry.

A two-stage history of late Cenozoic structural development is proposed for the northwestern San Bernardino Mountains: the range was first uplifted on low-angle structures and later. Neotectonics. Neotectonics is the bridge between Present and Cenozoic/Mesozoic tectonics and neotectonic observations may be extrapolated back with some confidence to the Early Miocene (e.g., Becker, ).

From: Regional Geology and Tectonics: Phanerozoic Passive Margins, Cratonic Basins and Global Tectonic Maps, Related terms: Miocene. Most of central and northern California rests on a crustal block that is being torn from the North American continent by the passing Pacific plate of oceanic crust.

Southern California lies at the southern end of this block, where the Southern California faults create a complex and even chaotic landscape of seismic activity. Seismic, geologic, and other data has been integrated by the. Study of late Quaternary alluvial deposits cut by the San Cayetano reverse fault indicates that the dip-slip rate of faulting increases from ± mm/yr at Sisar Creek near the western end.

Neotectonics and faulting in Southern California: guidebook and volume: prepared for the 82nd Annual Meeting of the Cordilleran Section of the Geological Society of America, Los Angeles, California, Marchfield trip numb 12, 18 [].

(Accepted for publication ) ABSTRACT: Sylvester, A.G. and Darrow, A.C., Structure and neotectonics of the western Santa Ynez fault system in southern by:   Neotectonics and Earthquake Forecasting. The editors of a new book describe the evolution of major earthquake producing fault zones in the.

The right‐lateral San Gregorio‐Hosgri fault system (SGHF) extends mainly offshore for about km along the central California coast and is a major structure in the distributed transform margin of western North America. We mapped a poorly known 64‐km‐long section of the SGHF offshore Big Sur between Piedras Blancas and Point Sur using high‐resolution bathymetry, seismic reflection Cited by: 3.

Neotectonics of the San Diego Trough and Coronado Bank fault systems, Inner California Borderlands. Conference Paper (PDF Available) September with 62 Reads How we measure 'reads'.

Earthquakes in Southern California: A View from Space - Perspectives on Ocean Science - Duration: University of California Television (UCTV) 10, views The potential danger of two fault lines off the coast of Southern California has long been known.

But a new study shows there is more reason to be scared than previously suspected. The fault is crossed by two of Southern California’s most important supplies of imported water — the California and Los Angeles aqueducts — and critical roads like Interstate 5, state routes.

The northwest trending Hosgri‐San Gregorio fault zone extends along the central California coast for km. We mapped a poorly known 64‐km‐long section of this important fault zone offshore of Big Sur between Piedras Blancas and Point Sur Cited by: 3.

Introduction California’s geologic history is very complex, most of the state did not exist as a coherent piece of the earth’s crust until relatively recently in geologic terms. Rock formations that are now adjacent often have very different histories. Some of the larger collisions were associated with major episodes of tectonic activity—intrusive and extrusive volcanic.

Southern California is an area well known for its seismicity. The region sits astride the boundary between two plates – the North American and the Pacific. Movement along this boundary has created numerous faults and other features. Despite its proximity to densely populated Southern California, the hazard posed by faults in the ICB remains poorly understood due to unknown fault geometry and loosely constrained slip rates.

The San Diego Trough fault and Coronado Bank fault systems are northwest striking, sub-parallel, right-lateral faults within the ICB system.Define neotectonics.

neotectonics synonyms, neotectonics pronunciation, neotectonics translation, English dictionary definition of neotectonics. Muir Wood, "Extraordinary deglaciation reverse faulting in northern Fennoscandia," in Earthquakes at North-Atlantic .Southern California Earthquakes and Faults.

The earthquakes of California are caused by the movement of huge blocks of the earth's crust- the Pacific and North American plates. The Pacific plate is moving northwest, scraping horizontally past North America at a rate of about 50 millimeters (2 inches) per year.