Identification_Information: Citation: Citation_Information: Originator: C. Isselhardt Originator: L. Osuch Originator: P. Wilde Publication_Date: 1968 Title: Recent sediments of Bolinas Bay, California; Part A. Introduction and grain size data Geospatial_Data_Presentation_Form: Paper Series_Information: Series_Name: Hydraulic Engineering Laboratory Technical Report Issue_Identification: HEL-2-19 Publication_Information: Publication_Place: Berkeley, CA Publisher: University of California Description: Abstract: "The following work is part of a long term study of sediment transport on the continental shelf of central California. In particular, it is hoped that the data presented here will be useful also to the general study of the factors that influence the natural environment of Bolinas Lagoon now being conducted as a cooperative effort involving the University of California, the U.S. Corps of Engineers; the U.S. Geological Survey; the Department of Agriculture, Soil Conservation Service; and consultants for the Bolinas Harbor District." Purpose: No specific purpose is cited in the report. Supplemental_Information: This work was supported by Contract 72-67-C-0015 with the Coastal Engineering Research Center, Corps of Engineers, U.S. Army. Data digitized by the USGS for inclusion into usSEABED (http://walrus.wr.usgs.gov/usseabed) Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1968 Currentness_Reference: Publication date Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -122.630 East_Bounding_Coordinate: -122.423 North_Bounding_Coordinate: 37.455 South_Bounding_Coordinate: 37.202 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: University of California at Berkeley Theme_Keyword: Orange peel grab 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 Composition Theme_Keyword: Sedimentary Structures Theme_Keyword: Sedimentary Textures Theme_Keyword: Terrigenous Sediments Place: Place_Keyword_Thesaurus: None Place_Keyword: California Place_Keyword: Bolinas Bay Access_Constraints: Available at some libraries Use_Constraints: Cite C. Isselhardt, L. Osuch, and P. Wilde and the University of California, Berkeley as the source of the information Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: University of California Contact_Address: Address_Type: Mail Address: Department of Civil and Environmental Engineering Address: 760 Davis Hall City: Berkeley State_or_Province: CA Postal_Code: 94720-1710 Contact_Voice_Telephone: 510-642-3261 Browse_Graphic: Browse_Graphic_File_Name: HEL2-19 Browse_Graphic_File_Description: Sample distribution with bathymetry and coastline for reference Browse_Graphic_File_Type: .jpg Data_Set_Credit: Digitization: c. Isslehardt, L. Osuch and P. Wilde at the University of California Berkeley for the collection and analysis of data. For inclusion into usSEABED: Jennifer Mendonca (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 Cross_Reference: Citation_Information: Originator: C. Isselhardt Originator: L. Osuch Originator: T. Yancey Originator: P. Wilde Publication_Date: 1971 Title: Recent sediments of Bolinas Bay California: Part B. Mineralogical data Geospatial_Data_Presentation_Form: Paper Series_Information: Series_Name: Hydraulic Engineering Laboratory Technical Report Issue_Identification: HEL-2-22 Publication_Information: Publication_Place: Berkeley, CA Publisher: University of California Other_Citation_Details: Graphical representation of heavy mineral analyses 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: All data were digitized, except graphical cumulative and class grainsize values. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Navigation by Decca radar bearings on shore landmarks. Latitude/longitudes are given to degrees minute, seconds. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Water depths by echo sounder with a Raytheon fathometer. Depths recorded in fathoms, feet, and meters. Lineage: Process_Step: Process_Description: "Marine bottom samples were obtained with an orange peel grab sampler from the converted fishing boat San Michele. Beach samples were scooped from the surface at low tide. The intervals from medium sand to very fine sand were monitored at half phi intervals as the primary mode of most of the samples is in that size interval. After sieving, each size faction was weighed on an analytical balance to 0.001 grams and a weight percent value calculated for each fraction." Process_Date: 1969 Source_Produced_Citation_Abbreviation: HEL-2-19 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: University of California Contact_Address: Address_Type: Mail Address: Department of Civil and Environmental Engineering Address: 760 Davis Hall City: Berkeley State_or_Province: CA Postal_Code: 94720-1710 Contact_Voice_Telephone: 510-642-3261 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: 48 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: .00028 Longitude_Resolution: .00028 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: Depth Attribute_Definition: Water depth Attribute_Definition_Source: Source report Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 18 Attribute_Units_of_Measure: Meters Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Sample description Attribute_Definition: Lithologic description Attribute_Definition_Source: Source report Attribute_Domain_Values: Unrepresentable_Domain: Written sample description including color Attribute: Attribute_Label: Median Attribute_Definition: Median grainsize Attribute_Definition_Source: Source report Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.0 Range_Domain_Maximum: 3.84 Attribute_Units_of_Measure: Phi Attribute_Measurement_Resolution: 0.001 Attribute: Attribute_Label: Sorting coefficient Attribute_Definition: Standard deviation of grain size dispersion Attribute_Definition_Source: Trask 1932 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.03 Range_Domain_Maximum: 3.35 Attribute_Units_of_Measure: Phi Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Skewness Attribute_Definition: Symmetry of grainsize distribution Attribute_Definition_Source: Trask 1932 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.83 Range_Domain_Maximum: 1.32 Attribute_Units_of_Measure: Unitless Attribute_Measurement_Resolution: 0.001 Attribute: Attribute_Label: Kurtosis Attribute_Definition: Comparision of central portion of curve to spread of whole curve Attribute_Definition_Source: Krumbein and Pettijohn, 1938 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.81 Range_Domain_Maximum: 3.47 Attribute_Units_of_Measure: Unitless Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Q1 Attribute_Definition: Quartile value of sand fraction at 25 percent Attribute_Definition_Source: Trask 1932 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -1.32 Range_Domain_Maximum: 3.32 Attribute_Units_of_Measure: Phi Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Q3 Attribute_Definition: Quartile value of sand fraction at 75 percent Attribute_Definition_Source: Trask 1932 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.51 Range_Domain_Maximum: 4.06 Attribute_Units_of_Measure: Phi Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Mineral identification in given size fraction Attribute_Definition: Mineral identification in given size fractions Attribute_Definition_Source: Source report Attribute_Domain_Values: Unrepresentable_Domain: Heavy mineral analyses in various sand size fractions are included; minerals include zircon, garnet, biotite, apatite, clinozoisite & epidote, lawsonite, green hornblende, oxyhornblende, glaucophane, sphene, zoisite, augite, jadeite, bypersthene, enstatite, termolite & actinolite. Grain counts of other minerals are provided. Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: University of California Contact_Address: Address_Type: Mail Address: Department of Civil and Environmental Engineering Address: 760 Davis Hall City: Berkeley State_or_Province: CA Postal_Code: 94720-1710 Contact_Voice_Telephone: 510-642-3261 Resource_Description: HEL Report 2-19 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 limitations of the data due to possible imprecision due to navigational inaccuracies and limitations of the statistical data. Standard_Order_Process: Non-digital_Form: Report is available at libraries. Fees: None Technical_Prerequisites: None Available_Time_Period: Time_Period_Information: Single_Date/Time: Calendar_Date: 1970 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.