Geologic aspects of the recent sediments of south San Francisco Bay

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Tasso John Conomos

Publication_Date: 1963

Title:

Geologic aspects of the recent sediments of south San Francisco Bay

Geospatial_Data_Presentation_Form: Paper

Publication_Information:

Publication_Place: San Jose

Publisher: San Jose State College (University)

Description:

Abstract: No formal abstract is given in the report.

Purpose:

" This report summarizes the results of research dealing with the first sedment of a comprehensive study of the hydrography, sedimentation, mineralogy and microorganisms of the San Francisco Bay system. The present study covers the area in the San Francisco Bay south of the San Mateo highway bridge, and is concerned with (1) the physical and chemical characteristics of the recent marine sediments as well as the effect of various hydrographic agents upon these sediments; (2) the mineralogy of the sand- and clay-size sediments; (3) the rate of deposition and transportation patterns of the sediments."

Supplemental_Information:

Data digitized for inclusion into usSEABED. (<http://walrus.wr.usgs.gov/usseabed>)

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 1961

Ending_Date: 1963

Currentness_Reference: Publication date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -122.4736

East_Bounding_Coordinate: -121.9747

North_Bounding_Coordinate: 38.1410

South_Bounding_Coordinate: 37.3294

Keywords:

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: San Jose State University

Theme_Keyword: Peterson dredge

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category

Theme_Keyword: Oceans and Estuaries

Theme_Keyword: Location

Theme_Keyword: GeoscientificInformation

Theme:

Theme_Keyword_Thesaurus:

NASA/Global Change Master Directory (GCMD) Earth Science Keyword. Version 5.3.3

Theme_Keyword: Marine Sediments

Theme_Keyword: Sediment textures

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category:

Theme_Keyword: Marine Sediments

Theme_Keyword: Geotechnical Properties

Theme_Keyword: Sediment Chemistry

Theme_Keyword: Sediment Composition

Theme_Keyword: Sedimentary Structures

Theme_Keyword: Sedimentary Textures

Theme_Keyword: Stratigraphic Sequence

Theme_Keyword: Terrigenous Sediments

Place:

Place_Keyword_Thesaurus: Geographic Names Information System

Place_Keyword: California, State of

Place_Keyword: San Francisco Bay

Access_Constraints:

None. Thesis is available at the USGS Library and other libraries.

Use_Constraints:

Cite T. John Conomos and San Jose State University as originators of the data.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: San Jose State University

Contact_Address:

Address_Type: Physical

Address: Geology Dept., Duncan Hall

City: San Jose

State_or_Province: CA

Postal_Code: 95192-0102

Contact_Voice_Telephone: (408) 924-5050

Contact_Facsimile_Telephone: 408) 924-5053

Hours_of_Service: 7:30 to 11:30 and 12:30 to 16:00

Browse_Graphic:

Browse_Graphic_File_Name: Conomos_MS_1963

Browse_Graphic_File_Description:

Sample distribution with coastline and bathymetry for reference.

Browse_Graphic_File_Type: .jpg

Data_Set_Credit:

T. John Conomos for collecting and analyzing the data. usSEABED digitization: April Villagomez and Jane Reid (USGS); Formatting corrections: Jane Reid (USGS) and Chris Jenkins (University of Colorado)

Native_Data_Set_Environment:

Tkme: Another editor for formal metadata by Peter N. Schweitzer (U.S. Geological Survey, Reston, VA 22092), version 2.9.13, Microsoft Windows Version 5.1; Microsoft Word 2000 9.0

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

No estimate made for the accuracy of the data in the original report. Data digitized by the USGS and partners were visually compared to the source data, and corrected. Where appropriate, data were tested for completeness using MS Excel. Locations checked using GIS.

Logical_Consistency_Report:

Data fall within normal ranges for phi-size classes and statistical values.

Completeness_Report:

Appendix C (Physical data of the sediments), D (Chemical data of the sediments), and E (Mineralogical data, sand fraction) were completely digitized.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Locations, where possible, were established at navigational aids such as buoys and pilings. In the absence of navigational aids, methods of dead reckoning and triangulation with a Brunton pocket transit were used. Digitization for inclusion in usSEABED was performed by georeferencing figure 2 in ArcGIS 8.3 using known digital coastline.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report: Water depths technique not noted in report.

Lineage:

Process_Step:

Process_Description:

Sand fraction analyzed by Emery settling tube (Emery, 1938), and fine fractions (silt and clay) by standard pipette method (Rittenhouse, 1933). Sodium hydroxide was used as a dispersing agent.

Source_Used_Citation_Abbreviation: Emery, 1938

Source_Used_Citation_Abbreviation: Rittenhouse, 1933

Process_Date: Unknown

Source_Produced_Citation_Abbreviation: Conomos_MS_63

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: San Jose State University

Contact_Address:

Address_Type: Physical

Address: Geology Dept., Duncan Hall

City: San Jose

State_or_Province: CA

Postal_Code: 95192-0102

Contact_Voice_Telephone: (408) 924-5050

Contact_Facsimile_Telephone: 408) 924-5053

Hours_of_Service: 7:30 to 11:30 and 12:30 to 16:00

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Point

Point_and_Vector_Object_Count: 60

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: .0001

Longitude_Resolution: .0001

Geographic_Coordinate_Units: Decimal degrees

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: Point

Entity_Type_Definition: SDTS point

Entity_Type_Definition_Source: Source report

Attribute:

Attribute_Label: Water depth

Attribute_Definition: Water depth of station at MLLW

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0

Range_Domain_Maximum: 14.3

Attribute_Units_of_Measure: Meters

Attribute_Measurement_Resolution: 0.1

Attribute:

Attribute_Label: Median diameter

Attribute_Definition: Median diameter of sediment sample

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.7

Range_Domain_Maximum: 940

Attribute_Units_of_Measure: Micron

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Sorting coefficient

Attribute_Definition: Standard deviation of grain size distribution

Attribute_Definition_Source: Trask 1932

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.05

Range_Domain_Maximum: 10

Attribute_Units_of_Measure: Phi

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Skewness

Attribute_Definition: Skewness of grainsize distribution

Attribute_Definition_Source: Trask 1932

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.07

Range_Domain_Maximum: 3.41

Attribute_Units_of_Measure: Unitless

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Water content

Attribute_Definition: Water content of wet sample

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 18.8

Range_Domain_Maximum: 69.3

Attribute_Units_of_Measure: Percent

Attribute_Measurement_Resolution: 0.1

Attribute:

Attribute_Label: Color

Attribute_Definition: Color of sediment

Attribute_Definition_Source: GSA color code

Attribute_Domain_Values:

Unrepresentable_Domain: Alpha numeric code based on hue, value, and chroma

Attribute:

Attribute_Label: pH sediments

Attribute_Definition: pH of the sediments

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 6.05

Range_Domain_Maximum: 8.75

Attribute_Units_of_Measure: pH

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Acid soluble matter

Attribute_Definition: Acid soluble matter

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 14.7

Range_Domain_Maximum: 70.6

Attribute_Units_of_Measure: Percent

Attribute_Measurement_Resolution: 0.1

Attribute:

Attribute_Label: Shell fragments by weight

Attribute_Definition: Shell fragments by weight

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2.4

Range_Domain_Maximum: 50

Attribute_Units_of_Measure: Percent

Attribute_Measurement_Resolution: 0.1

Attribute:

Attribute_Label: Organic carbon

Attribute_Definition: Organic carbon

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.202

Range_Domain_Maximum: 2.450

Attribute_Units_of_Measure: Percent

Attribute_Measurement_Resolution: 0.001

Attribute:

Attribute_Label: Organic matter content

Attribute_Definition: Organic matter content

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.34

Range_Domain_Maximum: 4.17

Attribute_Units_of_Measure: Percent

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Heavy minerals in sand sized fraction

Attribute_Definition: Heavy minerals in sand sized fraction

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2.8

Range_Domain_Maximum: 38.1

Attribute_Units_of_Measure: Percent

Attribute_Measurement_Resolution: 0.1

Attribute:

Attribute_Label: Light minerals in sand-sized fraction

Attribute_Definition: Light minerals in sand-sized fraction

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Unrepresentable_Domain:

Percentages of quartz, K-feldspar, plagioclase, composite grains, rock fragments

Attribute:

Attribute_Label: Clay-sized fraction

Attribute_Definition: Clay minerals in clay-size fraction

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Unrepresentable_Domain:

Percentages of montmorillonite, chlorite, illite in the clay fraction

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: San Jose State University

Contact_Address:

Address_Type: Physical

Address: Geology Dept., Duncan Hall

City: San Jose

State_or_Province: CA

Postal_Code: 95192-0102

Contact_Voice_Telephone: (408) 924-5050

Contact_Facsimile_Telephone: 408) 924-5053

Hours_of_Service: 7:30 to 11:30 and 12:30 to 16:00

Resource_Description: Conomos MS Thesis

Distribution_Liability:

Although this dataset has been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data. Users of the data should be aware of the limitations of the data due to possible imprecision due to navigational inaccuracies, statistical limitations, and digitizing errors.

Standard_Order_Process:

Non-digital_Form: Report may be available at various libraries

Fees: None

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey

Contact_Address:

Address_Type: Mail and physical

Address: 345 Middlefield Road

City: Menlo Park

State_or_Province: CA

Postal_Code: 94025

Contact_Voice_Telephone: 650.329.5026

Contact_Electronic_Mail_Address: men_lib@usgs.gov

Resource_Description: Conomos MS thesis 1963

Distribution_Liability:

Although this dataset has been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data. Users of the data should be aware of the limitations of the data due to possible imprecision due to navigational inaccuracies, statistical limitations, and digitizing errors.

Standard_Order_Process:

Non-digital_Form:

Report is available for viewing or checkout at the USGS library, Menlo Park, and at other libraries.

Fees: None

Technical_Prerequisites: None

Available_Time_Period:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1963

Metadata_Reference_Information:

Metadata_Date: 2005

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey

Contact_Person: Jane A. Reid

Contact_Position: Geologist

Contact_Address:

Address_Type: Physical and mail

Address: 400 Natural Bridges Drive

City: Santa Cruz

State_or_Province: CA

Postal_Code: 95060

Contact_Voice_Telephone: 831-427-4727

Contact_Electronic_Mail_Address: jareid@usgs.gov

Contact_Instructions: Email preferred

Metadata_Standard_Name: CSDGM Version 2

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Access_Constraints: None

Metadata_Use_Constraints:

Metadata was written by a user of the data. Any information contained in the physical report is authoritative and supercedes any information given here.