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

Default Visibility: false

MaxRecordCount: 5600

Supported Query Formats: JSON, geoJSON

Min Scale: 0

Max Scale: 0

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: false

Can Modify Layer: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports Datum Transformation: true

Extent:

XMin: -8371194.785499999
YMin: 4576522.409199998
XMax: -8323352.760399999
YMax: 4650387.182099998
Spatial Reference: 102100  (3857)

Drawing Info:

Renderer:
Simple Renderer:
Symbol:
Style: esriSMSCircle
Color: [143, 0, 12, 255]
Size: 4.0
Angle: 0.0
XOffset: 0
YOffset: 0
Outline:
[0, 0, 0, 255] Width: 1
Label:
Description:
Transparency: 0
Labeling Info:

Advanced Query Capabilities:

Supports Statistics: true
Supports OrderBy: true
Supports Distinct: true
Supports Pagination: true
Supports TrueCurve: true
Supports Returning Query Extent: true
Supports Query With Distance: true
Supports Sql Expression: true
Supports Query With ResultType: false
Supports Returning Geometry Centroid: false

HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

Fields:

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

Supported Operations:   Query   Generate Renderer   Return Updates

  Iteminfo   Thumbnail   Metadata