Progress report on status of analysis and interpretation of data collected on cruises F7-90-NC and F8-90-NC, Farallon Escarpment, 19 July to 3 August and 5 to 17 August, 1990

Metadata:

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

Identification_Information:

Citation:

Citation_Information:

Originator: H.A. Karl

Originator: D. E. Drake

Originator: W.C. Schwab

Originator: B.D. Edwards

Originator: H.J. Lee

Originator: J.L. Chin

Publication_Date: 19901101

Title:

Progress report on status of analysis and interpretation of data collected on cruises F7-90-NC and F8-90-NC, Farallon Escarpment, 19 July to 3 August and 5 to 17 August, 1990

Geospatial_Data_Presentation_Form: Paper

Series_Information:

Series_Name: USGS Woods Hole Science Center Report

Issue_Identification: WHSC 90027

Publication_Information:

Publication_Place: Woods Hole, MA 02543

Publisher: U.S. Geological Survey

Other_Citation_Details:

Data from USGS cruises F790NC (<http://walrus.wr.usgs.gov/infobank/f/f790nc/html/f-7-90-nc.meta.html>) and F890NC (<http://walrus.wr.usgs.gov/infobank/f/f890nc/html/f-8-90-nc.meta.html>

Online_Linkage: <http://quashnet.er.usgs.gov/data/1990/90027/archive/>

Description:

Abstract: No formal abstract is given in the report.

Purpose:

"This report is the first of two interim reports to be submitted prior to the final report (due August 1991) that describe the progress of the analysis of data collected on the Farallon Escarpment.... In this report, we describe (1) the sidescan sonar mosaic,(2) examples of the high-resolution seismic-reflection profiles, (3) the surficial grain-size data, and (4) some of the physical properties of the sediment as determined by geotechnical analyses."

Supplemental_Information:

Data digitized in 2004 for inclusion into usSEABED (<http://walrus.wr.usgs.gov/usseabed>)

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19900719

Ending_Date: 19900817

Currentness_Reference: Publication date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -123.4182

East_Bounding_Coordinate: -122.9057

North_Bounding_Coordinate: 37.5275

South_Bounding_Coordinate: 37.1660

Keywords:

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

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: U.S. Geological Survey

Theme_Keyword: Office of Marine Geology

Theme_Keyword: Coastal and Marine Geology Program

Theme_Keyword: Gravity core

Place:

Place_Keyword_Thesaurus: Geographic Names Information System

Place_Keyword: Farallon Islands

Place_Keyword: California

Access_Constraints: None

Use_Constraints: Cite the U.S. Geological Survey as the originators of the data.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: United States Geological Survey

Contact_Address:

Address_Type: Mail

Address: USGS Information Services

Address: Box 25286

City: Denver

State_or_Province: CO

Postal_Code: 80225

Contact_Voice_Telephone: 1-800-ASK-USGS

Browse_Graphic:

Browse_Graphic_File_Name: WHSC_90027

Browse_Graphic_File_Description:

Screen grab of GIS-produced sample distribution, with bathymetry and land for reference.

Browse_Graphic_File_Type: JPG

Data_Set_Credit:

H.A. Karl, D. E. Drake, W.C. Schwab, B.D. Edwards, H.J. Lee, J.L. Chin at the United States Geological Survey for the collection and analysis of data. For usSEABED, formatting: 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 original report. For usSEABED, data were digitized (typed in), compared to original and corrected as needed. Where appropriate, data were tested for completeness using MS Excel. Locations checked using GIS.

Logical_Consistency_Report: Data fall within expected ranges for the attributes measured.

Completeness_Report:

No estimate made for original report. For inclusion into usSEABED, all data in the report were included.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Navigation by integrated navigation (Del Norte range-range, GPS, Loran C Rho-Rho); given in decimal degrees (five significant figures).

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

Depth determinations by 3.5 kHz, 4.5 kHz, or 10 kHz bathymetric profilers, given to nearest meter.

Lineage:

Process_Step:

Process_Description:

No specific information is available for cores from this cruise. General analytical techniques for the USGS Menlo Park Sediment Laboratory: Initial splits into size fractions by wet sieving using A.S.T.M. #10 (2mm) and A.S.T.M. #230 (0.063 mm) sieves. Fraction specific techniques for particle size analysis: for the coarse fraction (> 2.0 mm) is by sieve analysis and the medium fraction (2-0.063 mm) by settling tube. The fine fraction (<0.062 mm) is by pipette (Folk, 1968; Carver, 1971), hydrophotometer (Jordan and others, 1971), laser-diffraction (Beckman Coulter), or Sedigraph (Micromeretics), or combinations thereof. Settling tubes are modifications of those described by Theide, Chriss, Clauson and Swift, 1976 and are calibrated using Gibbs, 1971. Since 1998, the fine fraction (silt and clay), and occasionally up to 1 mm, is usually analyzed by the Beckman Coulter LS100Q (1 mm - 0.4 microns) and the LS230 (2 mm to 40 nanometers). Between 1993 and 1998, the fine fraction (0.063 mm to 1 micron) was generally analyzed by SediGraph (Micromeretics 5100. Between 1976 and 1995, the fine fraction was generally analyzed by hydrophotometer (Jordan and others, 1971). Data reduction, size analysis, and statistics performed by the SDSZ computer program (McHendrie, 1988). Carbon analyses by UIC Coulometrics (Joliet, IL) carbon analyzers, using protocols described in the UIC CM5012 and 5014 Coulometer instruction manuals (systems CM130, CM150, or CM250). Total carbon (TC) and total inorganic carbon (TIC) are determined by coulometric titration using Coulometer coupled to an acidification module and furnace apparatus. TC and TIC analyses are conducted separately on sediment samples. TC content is measured by combusting a sample (~20 mg) in a furnace preheated to 1000 degrees C until no more CO2 is evolved (~ five minutes). TIC content is measured using a heated perchloric acid digestion until no more CO2 is evolved (~ five minutes). Total organic carbon (TOC) content in sediments is calculated by difference (TOC = TC - TIC). For a description of USGS CMG lab procedures, see the Lab Analysis Section in: <http://walrus.wr.usgs.gov/reports/ofr91-375/>

Source_Used_Citation_Abbreviation: Folk, 1968

Source_Used_Citation_Abbreviation: Carver, 1971

Source_Used_Citation_Abbreviation: Jordan and others, 1971

Source_Used_Citation_Abbreviation: Theide, Chris, Clauson and Swift, 1976

Source_Used_Citation_Abbreviation: Gibbs, 1971

Source_Used_Citation_Abbreviation: McHendrie, 1988

Process_Date: Unknown

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: 33

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.00001

Longitude_Resolution: 0.00001

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: US Geological Survey

Attribute_Domain_Values:

Unrepresentable_Domain: Alpha numeric number based on cruise and core information

Attribute:

Attribute_Label: Water depth

Attribute_Definition: Depth of sample from surface of water

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 280

Range_Domain_Maximum: 3120

Attribute_Units_of_Measure: Meters

Attribute_Measurement_Resolution: 1.0

Attribute:

Attribute_Label: Gravel

Attribute_Definition: Amount of gravel in subsample

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0

Range_Domain_Maximum: 0

Attribute_Units_of_Measure: Percent

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Sand

Attribute_Definition: Amount of sand in subsample

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.07

Range_Domain_Maximum: 91.94

Attribute_Units_of_Measure: Percent

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Silt

Attribute_Definition: Amount of silt in subsample

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 6.95

Range_Domain_Maximum: 88.9

Attribute_Units_of_Measure: Percent

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Clay

Attribute_Definition: Amount of clay in subsample

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.99

Range_Domain_Maximum: 42.42

Attribute_Units_of_Measure: Percent

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Mud

Attribute_Definition: Amount of mud in subsample

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 8.06

Range_Domain_Maximum: 98.93

Attribute_Units_of_Measure: Percent

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Median

Attribute_Definition: Median of grain-size distribution

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.07

Range_Domain_Maximum: 7.77

Attribute_Units_of_Measure: Phi

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Mean

Attribute_Definition: First moment of grain-size distribution

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.13

Range_Domain_Maximum: 8.3

Attribute_Units_of_Measure: Phi

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Sorting

Attribute_Definition: Second moment of grain-size distribution

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.96

Range_Domain_Maximum: 2.3

Attribute_Units_of_Measure: Phi

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Skewness

Attribute_Definition: Third moment of grain-size distribution

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.28

Range_Domain_Maximum: 3.3

Attribute_Units_of_Measure: Unitless

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Kurtosis

Attribute_Definition: Fourth moment of grain-size distribution

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2.71

Range_Domain_Maximum: 23.13

Attribute_Units_of_Measure: Unitless

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Mean

Attribute_Definition: Mean of grain-size distribution

Attribute_Definition_Source: Folk and Ward, 1974

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.01

Range_Domain_Maximum: 11.4

Attribute_Units_of_Measure: Phi

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Sorting

Attribute_Definition: Standard deviation of grain-size distribution

Attribute_Definition_Source: Folk and Ward, 1974

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.58

Range_Domain_Maximum: 2.17

Attribute_Units_of_Measure: Phi

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Skewness

Attribute_Definition: Skewness of grain-size distribution

Attribute_Definition_Source: Folk and Ward, 1974

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -0.17

Range_Domain_Maximum: 0.72

Attribute_Units_of_Measure: Unitless

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Kurtosis

Attribute_Definition: Kurtosis of grain-size distribution

Attribute_Definition_Source: Folk and Ward, 1974

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.82

Range_Domain_Maximum: 4.45

Attribute_Units_of_Measure: Unitless

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Mud/sand ratio

Attribute_Definition: Mud/sand ratio

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.84

Range_Domain_Maximum: 7.84

Attribute_Units_of_Measure: Unitless

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Shepard classification

Attribute_Definition: Classification of sediment on the sand-silt-clay ternary

Attribute_Definition_Source: Shepard 1954

Attribute_Domain_Values:

Unrepresentable_Domain:

Classification of sediment on the sand-silt-clay ternary (sand, silt, clayey silt, silty sand, sandy silt, sand-silt-clay)

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: United States Geological Survey

Contact_Address:

Address_Type: Mail

Address: USGS Information Services

Address: Box 25286

City: Denver

State_or_Province: CO

Postal_Code: 80225

Contact_Voice_Telephone: 1-800-ASK-USGS

Resource_Description: Woods Hole Science Center (WHSC) Report 90027

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 through the USGS; available online at: <http://quashnet.er.usgs.gov/data/1990/90027/archive/>

Fees: None

Technical_Prerequisites:

Adobe Acrobat required: Download: <http://www.adobe.com/products/acrobat/readermain.html>

Available_Time_Period:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1990

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.