SURFICIALGEOLOGY - Interpretation of the Surficial Geology of Apalachicola Bay and St. George Sound, Florida

Metadata also available as - [Questions & Answers] - [Parseable text]

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 2007
Title:
SURFICIALGEOLOGY - Interpretation of the Surficial Geology of Apalachicola Bay and St. George Sound, Florida
Edition: 1.0
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2006-1381
Publication_Information:
Publication_Place: Woods Hole Science Center, Woods Hole, Massachusetts
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Online_Linkage:
<http://pubs.usgs.gov/of/2006/1381/GIS/shapefiles/SurficialGeology.zip>
Larger_Work_Citation:
Citation_Information:
Originator: David C. Twichell
Originator: Brian D. Andrews
Originator: H. Lee Edmiston
Originator: William R. Stevenson
Publication_Date: 2006
Title:
Geophysical Mapping of oyster habitats in a shallow estuary; Apalachicola Bay, Florida
Edition: 1.0
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2006-1381
Publication_Information:
Publication_Place: Woods Hole Science Center, Woods Hole, Massachusetts
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Online_Linkage: <http://pubs.usgs.gov/of/2006/1381/>
Description:
Abstract:
These data were collected under a cooperative mapping program between the U.S. Geological Survey (USGS), the National Oceanic and Atmospheric Administration Coastal Services Center (NOAA\CSC), and the Apalachicola National Estuarine Research Reserve (NERR). The primary objectives of this program were to collect marine geophysical data to develop a suite of seafloor maps to better define the extent of oyster habitats, the overall seafloor geology of the bay and provide updated information for management of this resource. In addition to their value for management of the bay's oyster resources, the maps also provide a geologic framework for scientific research and the public.
High-resolution bathymetry, backscatter intensity, and seismic profile data were collected over 230 square kilometers of the floor of the bay. The study focused on the Apalachicola Bay and Western St. George Sound portions of the estuary in mostly in depths > 2.0 meters.
Purpose:
This shapefile provides a high-resolution interpretation of the surficial geology of Apalachicola Bay, and western part of St. George Sound, Florida. The interpretation is based on the sidescan sonar imagery, the bathymetry, available sediment sample information, and seafloor observations.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -85.096005
East_Bounding_Coordinate: -84.755168
North_Bounding_Coordinate: 29.783119
South_Bounding_Coordinate: 29.601303
Keywords:
Theme:
Theme_Keyword_Thesaurus: General
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: CMGP
Theme_Keyword: Woods Hole Science Center
Theme_Keyword: WHSC
Theme_Keyword: Seafloor
Theme_Keyword: Marine Geology
Theme_Keyword: field activity serial number 05001
Theme_Keyword: field activity serial number 06001
Theme_Keyword: geologic interpretation
Theme_Keyword: Sidescan-Sonar
Theme_Keyword: Geology
Theme_Keyword: Surficial Sediments
Theme_Keyword: interpreted seafloor facies
Theme_Keyword: oyster beds
Theme_Keyword: geologic mapping
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans and estuaries
Theme_Keyword: geoscientificInformation
Place:
Place_Keyword_Thesaurus: General
Place_Keyword: Apalachicola Bay
Place_Keyword: Florida
Place_Keyword: Apalachicola National Estuarine Research Reserve
Place_Keyword: St. George Sound
Place_Keyword: Gulf of Mexico
Place_Keyword: United States
Stratum:
Stratum_Keyword_Thesaurus: General
Stratum_Keyword: Seafloor
Temporal:
Temporal_Keyword_Thesaurus: General
Temporal_Keyword: 2005
Temporal_Keyword: 2006
Access_Constraints: None
Use_Constraints:
These data should not be used at map scales less than 1:30,000, for which it is not intended.
Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) as the source of this information.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: David Twichell
Contact_Organization: U.S. Geological Survey
Contact_Position: Oceanographer
Contact_Address:
Address_Type: mailing and physical address
Address: Woods Hole Science Center
Address: 384 Woods Hole Rd
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2266
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: dtwichell@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name:
<http://pubs.usgs.gov/of/2006/1381/GIS/thumbnails/SurficialGeology.jpg>
Browse_Graphic_File_Description: JPEG image of SurficialGeology shapefile
Browse_Graphic_File_Type: JPEG
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.2.1350
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The accuracy of this interpretive data layer is dependent on the level of detail of the source material and interpretation procedures for capturing that source. The primary limiting factor for the level of detail of the source is the scale of the remotely sensed data, and positional accuracy, distribution and total number of surficial samples available for the area. The map scale or remotely sensed image resolution determines the level of content that may be extracted from a given source during digitization.
Logical_Consistency_Report:
Topology was created for these polygons to identify/verify/and fix the following rules:
1) Polygons must not have gaps. All data gaps less than 15 m across were automatically fixed. A total of 5 errors were identified and fixed
2) Polygons must not overlap. No errors were found.
Completeness_Report:
Interpreted facies were qualitatively compared to ground truth data collected for NOAA in 1999. No quantitative comparison was conducted.
Lineage:
Process_Step:
Process_Description:
This data layer was digitized from visual interpretations using ArcView 3.3. Shapefile was digitized at a zoom scale of 1:5000 or greater. Each polygon was digitized and given one of 11 attributes to describe the general composition of that unit.
Process_Date: 20061221
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: David Twichell
Contact_Organization: U.S. Geological Survey
Contact_Position: Oceanographer
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1589
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2266
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: dtwichell@usgs.gov
Process_Step:
Process_Description:
Completed shapefile was imported to a polygon feature class. Topological rules were built to identify and fix any gaps or overlaps between adjacent polygons.
Process_Date: 20070102
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Brian Andrews
Contact_Organization: U.S. Geological Survey
Contact_Position: Geographer
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2348
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: bandrews@usgs.gov
Process_Step:
Process_Description:
Resulting feature class was visually reviewed to identify and edit any polygons that did not extend to the border of the sidescan sonar.
Process_Date: 20070125
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Brian Andrews
Contact_Organization: U.S. Geological Survey
Contact_Position: Geographer
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2348
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: bandrews@usgs.gov
Process_Step:
Process_Description:
Exported feature class from personal geodatabase to a shapefile and projected to geographic.
Process_Date: 200707
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Brian Andrews
Contact_Organization: U.S. Geological Survey
Contact_Position: Geographer
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: 508-548-8700 x 2348
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: bandrews@usgs.gov
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: G-polygon
Point_and_Vector_Object_Count: 179
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.000000
Longitude_Resolution: 0.000000
Geographic_Coordinate_Units: Decimal degrees
Geodetic_Model:
Horizontal_Datum_Name: D_WGS_1984
Ellipsoid_Name: WGS_1984
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257224
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: SurficialGeology
Entity_Type_Definition:
Surficial geology of the Apalachicola Bay and St. George Sound Survey areas
Entity_Type_Definition_Source: USGS
Attribute:
Attribute_Label: FID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: FACIES
Attribute_Definition: Interpreted seafloor facies
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: shelly sand
Enumerated_Domain_Value_Definition:
This sea floor type is characterized by a moderate to high backscatter signature on the sidescan imagery. Sediment samples from these areas recovered a mix of sand and shell hash (NOAA, Coastal Services Center, 1999). The shelly sand facies is found in three settings. First, it is found fringing parts of many of the oyster bars. Specifically, this facies is found along the eastern sides of Porter's, Platform, and St. Vincent Bars, it is found along both sides of Hotel and Norman's Bars, and occurs in patches around and between many of the smaller oyster bars. Second, this facies covers some shoal areas where there is no evidence of oysters. The shoal off Cedar Point and two areas west of St. Vincent Bar are examples of such areas. The third setting is the floor of troughs where strong tidal currents actively rework the sea floor. One of these troughs extends eastward along the southern side of the bay from West Pass, and another extends west into Apalachicola Bay from the shallow gap between Cat and East Hole Bars. In these areas, the shelly sand probably represents a lag deposit associated with active reworking by strong tidal currents. The shelly sand facies covers 16.33 km2 of the study area.
Enumerated_Domain_Value_Definition_Source: USGS
Enumerated_Domain:
Enumerated_Domain_Value: shell/gravel
Enumerated_Domain_Value_Definition:
This sea floor type was only identified in a small, relatively deep depression south of Cat Point. This facies has a high-backscatter return, and in this area bottom samples recovered shell hash and some gravel. This shell and gravel appears to be a lag deposit resulting from the strong tidal currents in this area. This facies covers 0.69 km2
Enumerated_Domain_Value_Definition_Source: USGS
Enumerated_Domain:
Enumerated_Domain_Value: sandy mud - mottled
Enumerated_Domain_Value_Definition:
Sections of the estuary floor have a moderate-to-low backscatter signature that is interrupted by small high-backscatter patches that are mostly 5-15 m in diameter. This mottled sea floor occurs in narrow bands along parts of the southern side of the survey area in St George Sound, and in some larger patches in the western part of Apalachicola Bay on Higgins Shoal and along both flanks of a second low-relief ridge west of St. Vincent Bar. Sediment samples form these mottled areas are sandy mud. The origin of the mottled pattern is unknown. This facies covers 2.60 km2.
Enumerated_Domain_Value_Definition_Source: USGS
Enumerated_Domain:
Enumerated_Domain_Value: sand - tidal inlet
Enumerated_Domain_Value_Definition:
This sea floor type refers to the flood tidal delta deposit shoreward of Government Cut, the manmade inlet that separates St. George Island from Little St. George Island. The surface of this feature is rippled, and inferred to be primarily of sand composition. West Pass does not have a flood tidal delta on its shoreward side. The flood tidal delta shoreward of Government Cut occupies 0.23 km2.
Enumerated_Domain_Value_Definition_Source: USGS
Enumerated_Domain:
Enumerated_Domain_Value: sand - sand wave
Enumerated_Domain_Value_Definition:
Two patches of sand waves were identified in the eastern part of St. George Sound where the sea floor is primarily sand. These sand waves have 50-150 m wavelengths, 0.5-0.8 m heights, and crests that trend northwest. Many of the sand waves are asymmetrical with their steep sides facing to the west. The asymmetry of these bedforms suggests a net westward migration. Sand waves cover 1.39 km2 of the survey area.
Enumerated_Domain_Value_Definition_Source: USGS
Enumerated_Domain:
Enumerated_Domain_Value: sand
Enumerated_Domain_Value_Definition:
This sea floor type refers to clean sand containing no more than small amounts of mud and shell hash. It covers most of the floor of the eastern part of St. George Sound, a large part of the floor of Apalachicola Bay west of St. Vincent Bar, and discontinuous sections of the southern edge of Apalachicola Bay. This facies covers 52.21 km2 of the study area.
Enumerated_Domain_Value_Definition_Source: USGS
Enumerated_Domain:
Enumerated_Domain_Value: oyster
Enumerated_Domain_Value_Definition:
Areas inferred to be covered by oysters show as high backscatter on the sidescan-sonar imagery, coincide with shoal areas on the bathymetry, and bottom observations show living oysters on a shelly sand sea floor. Oyster beds cover 21.91 km2 of the study area
Enumerated_Domain_Value_Definition_Source: USGS
Enumerated_Domain:
Enumerated_Domain_Value: mud
Enumerated_Domain_Value_Definition:
The mud facies covers the largest part of the study area. It appears on the sidescan-sonar imagery as low backscatter, and samples are comprised of at least 70% silt plus clay. The mud facies covers 134 km2 of the study area; an area that includes much of the floor of Apalachicola Bay and the western part of St. George Sound. It occurs mostly in sections of the study area where water depths are deeper than 2 m.
Enumerated_Domain_Value_Definition_Source: USGS
Enumerated_Domain:
Enumerated_Domain_Value: dredge/oyster
Enumerated_Domain_Value_Definition:
Oyster beds that have developed on top of dredge-spoil material.
Enumerated_Domain_Value_Definition_Source: USGS
Enumerated_Domain:
Enumerated_Domain_Value: dredge
Enumerated_Domain_Value_Definition:
These manmade deposits have the same origin as the dredge material/oyster areas however these deposits have a moderate backscatter surface and are inferred to not be covered with oysters. Areas classified as Dredge material cover 0.78 km2 and are found in the eastern part of St. George Sound, and along the western side of the section of the Intracoastal Waterway that trends northward to the mouth of the Apalachicola River.
Enumerated_Domain_Value_Definition_Source: USGS
Attribute:
Attribute_Label: Name
Attribute_Definition: Place names for known oyster bars
Attribute_Definition_Source: Florida Dept. of Environmental Protection (FLDEP).
Attribute:
Attribute_Label: Abrev
Attribute_Definition: Abbreviation of Facies attribute for map labels
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: O
Enumerated_Domain_Value_Definition: Oyster
Enumerated_Domain:
Enumerated_Domain_Value: Do
Enumerated_Domain_Value_Definition: Dredge material/oyster
Enumerated_Domain:
Enumerated_Domain_Value: D
Enumerated_Domain_Value_Definition: Dredge material
Enumerated_Domain:
Enumerated_Domain_Value: Shg
Enumerated_Domain_Value_Definition: Shell/gravel
Enumerated_Domain:
Enumerated_Domain_Value: Shs
Enumerated_Domain_Value_Definition: shelly sand
Enumerated_Domain:
Enumerated_Domain_Value: S
Enumerated_Domain_Value_Definition: Sand
Enumerated_Domain:
Enumerated_Domain_Value: St
Enumerated_Domain_Value_Definition: Sand - tidal inlet
Enumerated_Domain:
Enumerated_Domain_Value: Ssw
Enumerated_Domain_Value_Definition: Sand - sand wave
Enumerated_Domain:
Enumerated_Domain_Value: SMm
Enumerated_Domain_Value_Definition: Sandy mud - mottled
Enumerated_Domain:
Enumerated_Domain_Value: M
Enumerated_Domain_Value_Definition: Mud
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Shg
Enumerated_Domain_Value_Definition: Shell/gravel
Enumerated_Domain_Value_Definition_Source: USGS
Enumerated_Domain:
Enumerated_Domain_Value: SMm
Enumerated_Domain_Value_Definition: Sandy Mud-Mottled
Enumerated_Domain_Value_Definition_Source: USGS
Enumerated_Domain:
Enumerated_Domain_Value: St
Enumerated_Domain_Value_Definition: Sand - Tidal Inlet
Enumerated_Domain_Value_Definition_Source: USGS
Enumerated_Domain:
Enumerated_Domain_Value: Ssw
Enumerated_Domain_Value_Definition: Sand-sand wave
Enumerated_Domain_Value_Definition_Source: USGS
Enumerated_Domain:
Enumerated_Domain_Value: S
Enumerated_Domain_Value_Definition: Sand
Enumerated_Domain_Value_Definition_Source: USGS
Enumerated_Domain:
Enumerated_Domain_Value: O
Enumerated_Domain_Value_Definition: Oyster
Enumerated_Domain_Value_Definition_Source: USGS
Enumerated_Domain:
Enumerated_Domain_Value: M
Enumerated_Domain_Value_Definition: Mud
Enumerated_Domain_Value_Definition_Source: USGS
Enumerated_Domain:
Enumerated_Domain_Value: Dmo
Enumerated_Domain_Value_Definition: Dredge Material/Oyster
Enumerated_Domain_Value_Definition_Source: USGS
Enumerated_Domain:
Enumerated_Domain_Value: Dm
Enumerated_Domain_Value_Definition: Dredge Material
Enumerated_Domain_Value_Definition_Source: USGS
Attribute:
Attribute_Label: SHAPE_Leng
Attribute_Definition: Length in meters.
Attribute_Definition_Source: ESRI
Attribute:
Attribute_Label: SHAPE_Area
Attribute_Definition: Area of feature in meters squared.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Positive real numbers that are automatically generated.
Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Brian Andrews
Contact_Organization: U.S. Geological Survey, Woods Hole Science Center
Contact_Position: Geographer
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2348
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: bandrews@usgs.gov
Resource_Description: Downloadable Data
Distribution_Liability:
Although this data set has been used by the U.S. Geological Survey (USGS), no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials.
Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: SHP
Format_Version_Number: ArcGIS 9.2
Format_Specification: ESRI polygon shapefile
Format_Information_Content:
Shapefile contains interpretation of the surficial geology of the study area
File_Decompression_Technique: zip
Transfer_Size: 30
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
<http://pubs.usgs.gov/of/2006/1381/GIS/shapefiles/SurficialGeology.zip>
Access_Instructions: Data can be downloaded via the World Wide Web (WWW)
Offline_Option:
Offline_Media: DVD-ROM
Recording_Capacity:
Recording_Density: 4.75
Recording_Density_Units: Gbytes
Recording_Format: UDF
Fees: None
Technical_Prerequisites:
The data are available in Environmental Systems Research Institute (ESRI) shapefile format. The user must have ArcGIS or ArcView 3.3 or greater software to read and process the data file. In lieu of ArcView or ArcGIS, the user may utilize another GIS application package capable of importing data. A free data viewer, ArcExplorer, capable of displaying the data is available from ESRI at www.esri.com.
Metadata_Reference_Information:
Metadata_Date: 20070827
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Brian Andrews
Contact_Position: Geographer
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2348
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: bandrews@usgs.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Access_Constraints: None
Metadata_Use_Constraints: None
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile
Generated by mp version 2.9.2 on Mon Aug 27 12:27:26 2007