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.