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Name: MD Geological Survey Grabs

Display Field: SampleID

Type: Feature Layer

Geometry Type: esriGeometryPoint

Description: Compiled data from MGS sediment grab samples from 1984-2012 (listed in order of ascending FID #) 2007 - These samples were collected using a Van Veen grab sampler. Samples were collected on 3/12/2007 as part of the Ocean City, MD Sand Shoal Study conducted by the Alpine Ocean Seismic Survey. 2011 - These samples were collected as part of CZM Agreement 14-14-1846 CZM 151 (Chesapeake and Coastal Services) 2012 - These samples were collected as part of CZM Agreement 14-14-1846 CZM 151 (Chesapeake and Coastal Services) 1984 - 131 grab samples were collected during the summer of 1984. This work was associated with cooperative agreement 14-12-001-30316 between Maryland Geological Survey and the Bureau of Economic Geology University of Texas at Austin as agent for Branch of Geologic and Geophysical Studies Minerals Management Survice Reston, VA (Brooks, 1988) - REFS: Brooks, J.R. 1988. Sieve Analyses and Heavy Mineral Concentrations of the Sand Portions of Cores Taken from the Inner Continental Shelf of Maryland. Maryland Geological Survey, Baltimore MD. 2008 - Six grab samples were collected during the survey of Jack Spot Shoal on 6/12/2008. 1998 - Virginia Institute of Marine Sciences (VIMS) grab samples. "The primary data on which to base this set of studies were obtained during the course of a research cruise in 1998 and a second cruise in 1999. Instruments used on either or both cruises inclued a standard “Young” grab with a 0.044 m2 surface area for sediment samples, a Hulcher model Minnie Sediment profile camera (SPI), a standard bottom imaging sled which carried video cameras and water quality sensors, a Burrow-Cutter-Diaz Plowing Sediment Profile Camera System, a 600kHz high resolution side-scan sonar, and a 2.4 m (8 ft) beam trawl to collect juvenile fish, epibenthos, and macrobenthos. In addition to analyses of the samples and images, the data were coded for display in a Geographic Information System (GIS)(Cutter et al, 2000)." - REFS: Cutter, Jr., G.R., Diaz, R.J., Musick, J.A., Olney, Sr., J., Bilkovic, D.M., Maa, J.P.-Y., Kim, S.-C., Hardaway, Jr., C.S., Milligan, D.A., Brindley, R., Hobbs, III, C.H. 2000. Environmental Survey of Potential Sand Resource Sites Offshore Delaware and Maryland. OCS Study 2000-055 Final Report. Funding to compile these datasets provided by BOEM under cooperative agreement number: M14AC00007. Data processing and compilation was executed by Maryland Geological Survey.

Copyright Text: DNR MGS, MD iMAP

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XMin: -8371194.785499999
YMin: 4576522.409199998
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Spatial Reference: 102100  (3857)

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Type ID Field:

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: GIS Object ID, editable: false, nullable: false, defaultValue: null, modelName: OBJECTID )
• SampleID ( type: esriFieldTypeString, alias: Sample ID, editable: true, nullable: true, length: 254, defaultValue: null, modelName: SampleID )
• LAT ( type: esriFieldTypeDouble, alias: Latitude, editable: true, nullable: true, defaultValue: null, modelName: LAT )
• LON ( type: esriFieldTypeDouble, alias: Longitude, editable: true, nullable: true, defaultValue: null, modelName: LON )
• Easting ( type: esriFieldTypeDouble, alias: Easting, editable: true, nullable: true, defaultValue: null, modelName: Easting )
• Northing ( type: esriFieldTypeDouble, alias: Northing, editable: true, nullable: true, defaultValue: null, modelName: Northing )
• TIME ( type: esriFieldTypeString, alias: Time, editable: true, nullable: true, length: 254, defaultValue: null, modelName: TIME )
• DATE ( type: esriFieldTypeString, alias: Date, editable: true, nullable: true, length: 254, defaultValue: null, modelName: DATE )
• SIZE_MM ( type: esriFieldTypeDouble, alias: Mean Grain Size, editable: true, nullable: true, defaultValue: null, modelName: SIZE_MM )
• SEDPHI ( type: esriFieldTypeDouble, alias: Grab Sample PHI Values, editable: true, nullable: true, defaultValue: null, modelName: SEDPHI )
• SEDCLAS ( type: esriFieldTypeString, alias: Sediment Classification, editable: true, nullable: true, length: 254, defaultValue: null, modelName: SEDCLAS )
• CLSI ( type: esriFieldTypeDouble, alias: Clay and Slit Fraction, editable: true, nullable: true, defaultValue: null, modelName: CLSI )
• VFS ( type: esriFieldTypeDouble, alias: Very Fine Sand Fraction, editable: true, nullable: true, defaultValue: null, modelName: VFS )
• FS ( type: esriFieldTypeDouble, alias: Fine Sand Fraction, editable: true, nullable: true, defaultValue: null, modelName: FS )
• MS ( type: esriFieldTypeDouble, alias: Medium Sand Fraction, editable: true, nullable: true, defaultValue: null, modelName: MS )
• CS ( type: esriFieldTypeDouble, alias: Coarse Sand Fraction, editable: true, nullable: true, defaultValue: null, modelName: CS )
• VCSGR ( type: esriFieldTypeDouble, alias: Very Coarse Sand and Gravel Fraction, editable: true, nullable: true, defaultValue: null, modelName: VCSGR )
• SHFR ( type: esriFieldTypeDouble, alias: Shell Fragments, editable: true, nullable: true, defaultValue: null, modelName: SHFR )
• SHLG ( type: esriFieldTypeDouble, alias: Large Shells Fragements, editable: true, nullable: true, defaultValue: null, modelName: SHLG )
• FEAT_DESC ( type: esriFieldTypeString, alias: Sea Floor Features, editable: true, nullable: true, length: 254, defaultValue: null, modelName: FEAT_DESC )
• SWIREL_V ( type: esriFieldTypeDouble, alias: Sediment Water Interface Relief V, editable: true, nullable: true, defaultValue: null, modelName: SWIREL_V )
• SWIREL_B ( type: esriFieldTypeDouble, alias: Sediment Water Interface Relief B, editable: true, nullable: true, defaultValue: null, modelName: SWIREL_B )
• BEDF ( type: esriFieldTypeDouble, alias: Bedforms, editable: true, nullable: true, defaultValue: null, modelName: BEDF )
• GRAIN ( type: esriFieldTypeDouble, alias: Grain Roughness, editable: true, nullable: true, defaultValue: null, modelName: GRAIN )
• BIO ( type: esriFieldTypeDouble, alias: Biological Material Roughness, editable: true, nullable: true, defaultValue: null, modelName: BIO )
• SH ( type: esriFieldTypeDouble, alias: Shell Roughness, editable: true, nullable: true, defaultValue: null, modelName: SH )
• image ( type: esriFieldTypeString, alias: Image, editable: true, nullable: true, length: 254, defaultValue: null, modelName: image )
• D50_mm ( type: esriFieldTypeDouble, alias: Median Grain Size of Sample, editable: true, nullable: true, defaultValue: null, modelName: D50_mm )
• Percent_Sa ( type: esriFieldTypeDouble, alias: Percentage of Sand in Sample, editable: true, nullable: true, defaultValue: null, modelName: Percent_Sa )
• Percent_Mu ( type: esriFieldTypeDouble, alias: Percentage of Mud in Sample, editable: true, nullable: true, defaultValue: null, modelName: Percent_Mu )
• type ( type: esriFieldTypeString, alias: Type, editable: true, nullable: true, length: 254, defaultValue: null, modelName: type )
• depth ( type: esriFieldTypeDouble, alias: Depth, editable: true, nullable: true, defaultValue: null, modelName: depth )
• gr_mean_1 ( type: esriFieldTypeDouble, alias: Mean Size, editable: true, nullable: true, defaultValue: null, modelName: gr_mean_1 )
• gr_sort ( type: esriFieldTypeDouble, alias: Degree of Sorting, editable: true, nullable: true, defaultValue: null, modelName: gr_sort )
• gr_skew ( type: esriFieldTypeDouble, alias: Sample Skewness, editable: true, nullable: true, defaultValue: null, modelName: gr_skew )
• gr_kurt ( type: esriFieldTypeDouble, alias: Kurtosis, editable: true, nullable: true, defaultValue: null, modelName: gr_kurt )
• GRAVEL ( type: esriFieldTypeDouble, alias: Percent Gravel, editable: true, nullable: true, defaultValue: null, modelName: GRAVEL )
• SAND ( type: esriFieldTypeDouble, alias: Percent Sand, editable: true, nullable: true, defaultValue: null, modelName: SAND )
• SILT ( type: esriFieldTypeDouble, alias: Percent Silt, editable: true, nullable: true, defaultValue: null, modelName: SILT )
• CLAY ( type: esriFieldTypeDouble, alias: Percent Clay, editable: true, nullable: true, defaultValue: null, modelName: CLAY )
• MUD ( type: esriFieldTypeDouble, alias: Percent Mud, editable: true, nullable: true, defaultValue: null, modelName: MUD )

Templates:

• Name: MD Geological Survey Grabs
  Description:
  Prototype:
  CLAY: null
  MUD: null
  SampleID: null
  LAT: null
  LON: null
  Easting: null
  Northing: null
  TIME: null
  DATE: null
  SIZE_MM: null
  SEDPHI: null
  SEDCLAS: null
  CLSI: null
  VFS: null
  FS: null
  MS: null
  CS: null
  VCSGR: null
  SHFR: null
  SHLG: null
  FEAT_DESC: null
  SWIREL_V: null
  SWIREL_B: null
  BEDF: null
  GRAIN: null
  BIO: null
  SH: null
  image: null
  D50_mm: null
  Percent_Sa: null
  Percent_Mu: null
  type: null
  depth: null
  gr_mean_1: null
  gr_sort: null
  gr_skew: null
  gr_kurt: null
  GRAVEL: null
  SAND: null
  SILT: null
  
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