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Tuesday, July 14, 2020 | History

3 edition of General distribution of geologic materials in the southern San Francisco Bay Region, California found in the catalog.

General distribution of geologic materials in the southern San Francisco Bay Region, California

General distribution of geologic materials in the southern San Francisco Bay Region, California

a digital map database

  • 128 Want to read
  • 3 Currently reading

Published by Dept. of the Interior, U.S. Geological Survey, Books and Open-File Reports Section, distributor] in [Menlo Park, CA], [Denver, Colo .
Written in English

    Subjects:
  • Geological mapping -- California -- San Francisco Bay Area -- Databases.,
  • Geology -- California -- San Francisco Bay Area -- Databases.,
  • Digital mapping -- California -- San Francisco Bay Area -- Databases.,
  • San Francisco Bay Area (Calif.)

  • Edition Notes

    Other titlesA digital map database.
    Statementdigitally compiled by Carl M. Wentworth.
    SeriesOpen-file report -- 93-693., U.S. Geological Survey open-file report -- 93-693.
    ContributionsGeological Survey (U.S.)
    The Physical Object
    FormatMicroform
    Pagination12 p.
    Number of Pages12
    ID Numbers
    Open LibraryOL17682344M

    USGS (U.S. Geological Survey) National Geologic Map Database. General Information. Title: Geologic map of California: San Francisco sheet Author(s): Jennings, C.W., and Burnett, J.L. Publishing Organization: California Division of Mines and Geology Publication Date: Map Scale: , Cross Section: None North Latitude: 38° 0' 0" N () South Latitude: . Flatland deposits of the San Francisco Bay region, California; their geology and engineering properties, and their importance to comprehensive planning Professional Paper

    Download Citation | Geology, geochronology, and paleogeography of the southern Sonoma volcanic field and adjacent areas, northern San Francisco Bay region, California | . Page iii - The complexity, however, can be greatly reduced if we understand the natural characteristics of the land, the processes that shape it, its resource potential, and its natural hazards. These subjects are chiefly within the domain of the earth sciences: geology, geophysics, hydrology, and the soil sciences. Appropriate earth-science information, if available, can be Reviews: 1.

    The bay sediments consist of five formations of late Quaternary age, which correspond to deposits previously described by Lawson in his folio on the San Francisco Bay region. The oldest sediments belong to the Alameda formation, which ranges Cited by:   Several features set this book apart from many other Bay Area geology books: 1. The introduction to the Bay spans 3 chapters. Chapter 1 frames the timescale and describes basic geologic processes, Chapter 2 focuses entirely on plate tectonics, and Chapter 3 focuses on the 3 major basement rocks (Franciscan, Great Valley, Salinian)/5.


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General distribution of geologic materials in the southern San Francisco Bay Region, California Download PDF EPUB FB2

The ssfb_m1 digital map database, which is compiled from 's vintage sources, represents the general distribution and identity of geologic materials in the southern San Francisco Bay region, California, west of the Calaveras fault.

It is not a geologic map, because it does not address the geologic structure or the stratigraphic organization of the map units in a systematic by: 3. Get this from a library. General distribution of geologic materials in the southern San Francisco Bay Region, California: a digital map database. [Carl M Wentworth; Geological Survey (U.S.)].

The “Geologic Map of the San Francisco Bay region” shows the distribution of geologic materials and structures, demonstrates how geologists study the age and origin of the rocks and deposits that we live on, and reveals the complicated geologic history that has led to the landscape that shapes the Bay Area.

Several features set this book apart from many other Bay Area geology books: 1. The introduction to the Bay spans 3 chapters. Chapter 1 frames the timescale and describes basic geologic processes, Chapter 2 focuses entirely on plate tectonics, and Chapter 3 focuses on the 3 major basement rocks (Franciscan, Great Valley, Salinian).Cited by: The rocks are now being torn apart by the San Andreas fault.

Trips: San Francisco, Marin Headlands, Angel Island, Ring Mountain, Fort Funston, Bay Area Faults, and Point Reyes Peninsula. Sea Ranch – a scenic coastline etched by beach erosion of sedimentary rocks brought here from southern California by California book Andreas fault.

San Francisco Bay as we know it is a very young landform in geologic time. In this segment you’ll learn that: the west coast of North America has changed dramatically over time. the Bay with which we are familiar was created j years ago.

San Francisco Bay is File Size: KB. A three-dimensional (3D) geologic map of the Hayward Fault zone was created by integrating the results from geologic mapping, potential field geophysics, and seismology investigations. The map volume is km long, 20 km wide, and extends to a depth of 12 km below sea level.

This digital map database, compiled from previously published and unpublished data, and new mapping by the authors, represents the general distribution of bedrock and surficial deposits in the mapped area.

Together with the accompanying text file (,or ), it provides current information on the geologic structure and stratigraphy of the area covered. The geology you see around San Francisco is the result of forces along the Pacific and North American plates.

Today, the Pacific Plate is slowly creeping north past the North American Plate, forming the San Andreas fault system. San Francisco Bay was created by movement on these faults aboutyears ago.

For most bay area residents, mention of the South Bay calls up a picture of the urbanized bay plain at the southern end of San Francisco Bay: Silicon Valley, a web of interlaced freeways, heat, and smog.

But get past the urban sprawl and you find exceptionally interesting geology never suspected by freeway drivers. The rocks and fossils of the San Francisco Bay region reveal that the geology there is the product of millions of years at the active western margin of North America.

The result of this history is a complex mosaic of geologic materials and structures that form the landscape. A geologic map is one of the basic tools to understand the geology, geologic hazards, and geologic history of a.

the San Francisco Bay region, California, for large earthquakes on the San Andreas and Hayward faults, U.S. Geological Survey Miscellaneous Field Studies Map MFscale11 p. Detailed Description. Map of known active geologic faults in the San Francisco Bay region, California, including the Hayward Fault.

The 72 percent probability of a magnitude (M) or greater earthquake in the region includes well-known major plate-boundary faults, lesser-known faults, and unknown faults. Landslide Folio - San Francisco Bay Region; LARGE Earthquakes. San Francisco Quake - USGS Loma Prieta Quake; Loma Prieta Quake - SF City Museum Predictive Intensity Map for the Earthquake; Predictive Intensity Map for the Loma Prieta; Predictive Intensity Map for the Earthquake; Lessons from Large California.

map DMG CD California California Department of Conservation: Division of Mines and Geology Map is a digital version of the Geologic Map of California CD-ROM unknown ground condition cdmg cd Geology of California Map.

This map was used as a background image to identify the geologic formations that separated the various provinces. Tarball of tsurf files for mantle, lower crust, and topography/bathymetry zone surfaces and the San Andreas fault surface for the regional geologic block model.

Seismic Velocity Model. Detailed model ( GB) Etree database file for inner, fine resolution model covering the San Francisco Bay area. Learn about the Geology of Southern California with maps, photos and expert descriptions.

This 6"x9" paperback has pages that are packed with detailed information about Southern California Geology. Geology of the San Francisco Bay Region, by Doris Sloan, UC Press,pages, $ “The world-famous Bay Area rocks tell a geologic story that reads like a Russian novel with a very large cast of characters.

Because Read more. In the s, mother and peace activist Doris Sloan was working a nonprofit desk job in a basement office in San Francisco when she got into a UC Extension Sierra field class and fell in love with geology.

The rest, as they say, is history. Over the subsequent three decades spent teaching, writing, and leading field trips, Sloan has done more than anyone to make the. The Point Reyes Peninsula is a piece of southern California that has been carried north by the San Andreas fault several hundred miles during the last 25 million years.

As it moved north, the peninsula accumulated rocks from several different places in south and central California and carried these rocks with it, like a tramp steamer addingFile Size: KB.

To feel truly at home in the Bay Area, read Doris Sloan's intriguing stories of this region's spectacular, quirky landscapes."—Hal Gilliam, author of Weather of the San Francisco Bay Region "This is a fascinating look at some of the .The blue rectangle outlines the region covered by the 3-D geologic and seismic velocity models.

Black dots show the epicenters of the San Francisco earthquake and the Loma Prieta event. Different colors correspond to different rock types found in the region. Oblique view, looking from the southwest towards San Francisco Bay.About this book Published by the American Geophysical Union as part of the Field Trip Guidebooks Series, Volume The San Francisco Bay region is one of the premier sites in the world to see the effects on land of plate tectonics.