Holocene stratigraphy and sedimentation on the northern California continental shelf

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: Suleyman Demirpolat

Publication_Date: 1981

Title:

Holocene stratigraphy and sedimentation on the northern California continental shelf

Geospatial_Data_Presentation_Form: Paper

Publication_Information:

Publication_Place: Seattle, WA

Publisher: University of Washington

Other_Citation_Details: Master's thesis

Description:

Abstract: Not noted

Purpose:

"The purpose of this study was (1) to describe the areal distribution of the sediments and their textural variation, and use these variations as indicators of sedimentary processes on the continental shelf, and (2) to distinguish the modern and relict characteristics of the northern California continental shelf."

Supplemental_Information:

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

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 1979

Ending_Date: 1981

Currentness_Reference: Publication date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -123.750

East_Bounding_Coordinate: -123.052

North_Bounding_Coordinate: 38.800

South_Bounding_Coordinate: 38.062

Keywords:

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: University of Washington, Seattle

Theme_Keyword: Piston core

Theme_Keyword: Box core

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: Geographic Names Information System (GNIS)

Place_Keyword: California

Place_Keyword: Russian River

Access_Constraints:

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

Use_Constraints:

Cite Suleyman Demirpolat and the University of Washington as originators of the data.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: University of Washington

Contact_Address:

Address_Type: Mail

Address: P.O. Box 357940

Address: University of Washington

City: Seattle

State_or_Province: WA

Postal_Code: 98195

Contact_Voice_Telephone: 206-543-5060

Browse_Graphic:

Browse_Graphic_File_Name: Demirpolat_MS_1981

Browse_Graphic_File_Description:

Sample distribution with coastline and bathymetry for reference.

Browse_Graphic_File_Type: .jpg

Data_Set_Credit:

For usSEABED: Suleyman Demirpolat at the University of Washington for the collection and analysis of data. For inclusion into usSEABED: Digitization: K. Halimeda Kilbourne and Jennifer Mendonca (USGS) and Mark Zimmermann (NOAA) 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 the given parameters. One typo of light mineral percentage was changed in usSEABED from 44.65% to 94.65% to be consistent with other measurements.

Completeness_Report: All appendices (1 through 5) were digitized.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Navigation method unknown; no assessment made for location accuracy. Locations given to degrees minutes, tenths

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

Depth determination method unknown; no assessment made for accuracy. Depths given in meters

Lineage:

Process_Step:

Process_Description:

For textural analyses, the coarse sediment (greater than 0.062 mm) was dry sieved using 1/4 phi interval sieves and then weighed. The fine sediment (separated from the coarse sediment by wet-sieving) was pipetted on 1/2 phi intervals for the silt fraction and 1 phi-unit intervals for the clay. A split of 2-3 grams of the bulk sand fraction was used for heavy mineral analysis. Bromoform (sp. Gravity = 2.85 g/cm3) was added, centrifuged, filtered and rinsed. Magnetic minerals were separated using a hand magnet,and grain mounts were examined using a petrographic microscope; only the selected heavy minerals were counted. Clays were collected by repeated sedimentation and decantation using Millipore filters and glass slides. X-Ray diffraction was done on a Norelco diffractometer with a scintillation detector using copper k-alpha radiation and 40 kv and 20 ma and a graphite Monochrometer

Process_Date: Unknown

Source_Produced_Citation_Abbreviation: Demirpolat_MS_1981

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: University of Washington

Contact_Address:

Address_Type: Mail

Address: P.O. Box 357940

Address: University of Washington

City: Seattle

State_or_Province: WA

Postal_Code: 98195

Contact_Voice_Telephone: 206-543-5060

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Entity point

Point_and_Vector_Object_Count: 26

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.00167

Longitude_Resolution: 0.00167

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: Sample number

Attribute_Definition: Sample number

Attribute_Definition_Source: University of Washington

Attribute_Domain_Values:

Unrepresentable_Domain:

Alpha numeric code based on cruise identification and sample number.

Attribute:

Attribute_Label: Sampler

Attribute_Definition: Sampler type

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Gr

Enumerated_Domain_Value_Definition: Grab sample

Enumerated_Domain_Value_Definition_Source: Source report

Enumerated_Domain:

Enumerated_Domain_Value: Bx

Enumerated_Domain_Value_Definition: Box core sample

Enumerated_Domain_Value_Definition_Source: Source report

Enumerated_Domain:

Enumerated_Domain_Value: Ps

Enumerated_Domain_Value_Definition: Piston core

Enumerated_Domain_Value_Definition_Source: Source report

Attribute:

Attribute_Label: Water depth

Attribute_Definition: Water depth

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 33

Range_Domain_Maximum: 154

Attribute_Units_of_Measure: Meters

Attribute_Measurement_Resolution: 1.0

Attribute:

Attribute_Label: Gravel

Attribute_Definition: Gravel

Attribute_Definition_Source: Krumbein and Pettijohn, 1938

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0

Range_Domain_Maximum: 19.15

Attribute_Units_of_Measure: Percent

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Sand

Attribute_Definition: Sand

Attribute_Definition_Source: Krumbein and Pettijohn, 1938

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 3.75

Range_Domain_Maximum: 90.78

Attribute_Units_of_Measure: Percent

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Silt

Attribute_Definition: Silt

Attribute_Definition_Source: Krumbein and Pettijohn, 1938

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 5.85

Range_Domain_Maximum: 76.25

Attribute_Units_of_Measure: Percent

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Clay

Attribute_Definition: Clay

Attribute_Definition_Source: Krumbein and Pettijohn, 1938

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2.21

Range_Domain_Maximum: 45.99

Attribute_Units_of_Measure: Percent

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Mode

Attribute_Definition: Mode of grainsize distribution

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2.75

Range_Domain_Maximum: 9.0

Attribute_Units_of_Measure: Phi

Attribute_Measurement_Resolution: 0.25

Attribute:

Attribute_Label: Median

Attribute_Definition: Median grainsize

Attribute_Definition_Source: Inman, 1952

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 3.01

Range_Domain_Maximum: 7.64

Attribute_Units_of_Measure: Phi

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Mean

Attribute_Definition: Mean grainsize

Attribute_Definition_Source: Inman, 1952

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.59

Range_Domain_Maximum: 7.6

Attribute_Units_of_Measure: Phi

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Sorting

Attribute_Definition: Standard deviation of grainsize

Attribute_Definition_Source: Inman, 1952

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.21

Range_Domain_Maximum: 3.71

Attribute_Units_of_Measure: Phi

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: First skewness

Attribute_Definition: First skewness of grainsize

Attribute_Definition_Source: Inman, 1952

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -0.44

Range_Domain_Maximum: 0.9

Attribute_Units_of_Measure: Unitless

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Second skewness

Attribute_Definition: Second skewness of grainsize

Attribute_Definition_Source: Inman, 1952

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -0.28

Range_Domain_Maximum: 6.36

Attribute_Units_of_Measure: Unitless

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Kurtosis

Attribute_Definition: Kurtosis of grainsize distribution

Attribute_Definition_Source: Inman, 1952

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.61

Range_Domain_Maximum: 6.44

Attribute_Units_of_Measure: Unitless

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Light minerals in sand fraction

Attribute_Definition: Minerals in sand fraction with density < 2.85 g/cm3

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 90.5

Range_Domain_Maximum: 98.6

Attribute_Units_of_Measure: Percent

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Magnetic minerals in sand fraction

Attribute_Definition:

Minerals in sand fraction attracted to hand magnet of unknown strength.

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.07

Range_Domain_Maximum: 1.1

Attribute_Units_of_Measure: Percent

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Heavy minerals in sand fraction

Attribute_Definition: Minerals in sand fraction with density > 2.85 g/cm3

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.24

Range_Domain_Maximum: 8.8

Attribute_Units_of_Measure: Percent

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Mineral identification heavy minerals

Attribute_Definition:

Mineral identification in heavy mineral portion of sand fraction

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Unrepresentable_Domain:

Percents of biotite, glauconite, glaucophane, hornblende, and unidentified heavy minerals.

Attribute:

Attribute_Label: Mineral identification; clay minerals

Attribute_Definition: Mineral identification in clay portion

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Unrepresentable_Domain: Percents of chlorite, illite, kaolinite, montmorillonite.

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: University of Washington

Contact_Address:

Address_Type: Mail

Address: P.O. Box 357940

Address: University of Washington

City: Seattle

State_or_Province: WA

Postal_Code: 98195

Contact_Voice_Telephone: 206-543-5060

Resource_Description: depends on library

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 and the University of Washington.

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: Demirpolat MS thesis 1981

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: 1985

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.