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Connecticut Quaternary Geology Long Island Submerged Marine Lacustrine Fan Deposits

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey (data compiler, editor and publisher)
Originator: State of Connecticut, Department of Environmental Protection, Geological and Natural History Survey (data compiler, editor and publisher)
Publication_Date: 2005
Title:
Connecticut Quaternary Geology Long Island Submerged Marine Lacustrine Fan Deposits
Edition: version 2.0 of digital data
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publication_Place: Hartford, Connecticut, USA
Publisher: State of Connecticut, Department of Environmental Protection
Online_Linkage: http://www.ct.gov/deep
Online_Linkage: http://www.usgs.gov
Larger_Work_Citation:
Citation_Information:
Originator: Janet Radway Stone, U.S. Geological Survey
Originator: John P. Schafer, U.S. Geological Survey
Originator: Elizabeth Haley London, U.S. Geological Survey
Originator: Mary L. DiGiacomo-Cohen, Long Island Sound Resource Center
Originator: Ralph S. Lewis, Connecticut Geological and Natural History Survey
Originator: Woodrow B. Thompson, Maine Geological Survey
Publication_Date: 2005
Title:
Quaternary Geologic Map of Connecticut and Long Island Sound Basin
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: Scientific Investigations Map
Issue_Identification: SIM-2784
Publication_Information:
Publication_Place: Reston, Virginia, USA
Publisher: U.S. Department of the Interior, U.S. Geological Survey
Other_Citation_Details:
The Quaternary Geologic Map of Connecticut and Long Island Sound Basin is published by the U.S. Geological Suvey in cooperation with the State of Connecticut, Department of Environmental Protection, Geologic and Natural History Survey. The map is a USGS Scientific Investigations Map 2784 (SIM-2784), scale 1:125,000, 2 sheets, available for purchase from the Connecticut DEP Store or U.S. Geological Survey.
Online_Linkage: http://cteco.uconn.edu/map_catalog/maps/state/Quaternary_Geologic_Map_of_Connecticut_and_Long_Island_Sound_Basin.pdf
Larger_Work_Citation:
Citation_Information:
Originator: Janet Radway Stone, U.S. Geological Survey
Originator: John P. Schafer, U.S. Geological Survey
Originator: Elizabeth Haley London, U.S. Geological Survey
Originator: Woodrow B. Thompson, U.S. Geological Survey
Publication_Date: 1992
Title:
Surficial Materials Map of Connecticut
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: U.S. Geological Survey special map, 2 sheets
Issue_Identification: None
Publication_Information:
Publication_Place: Reston, Virginia, USA
Publisher: U.S. Department of the Interior, U.S. Geological Survey
Other_Citation_Details:
The Surficial Materials Map of Connecticut is published by the U.S. Geological Suvey in cooperation with the State of Connecticut, Department of Environmental Protection, Geologic and Natural History Survey. The map is a USGS Special Map, Scale 1:125,000, 2 sheets, available for purchase from the Connecticut DEP Store or U.S. Geological Survey.
Online_Linkage: http://cteco.uconn.edu/map_catalog/maps/state/Quaternary_Geologic_Map_of_Connecticut_and_Long_Island_Sound_Basin.pdf
Description:
Abstract:
Connecticut Quaternary Geology Long Island Submerged Marine Lacustrine Fan Deposits identifies lacustrine fan deposits submerged in Long Island Sound and Fishers Island Sound. This information appears on Sheet 1 of the The Quaternary Geologic Map of Connecticut and Long Island Sound Basin (Stone and others, 2005). 

The Connecticut Quaternary Geology digital spatial data combines the information portrayed on the on-land portion of the Quaternary Geologic Map of Connecticut and Long Island Sound Basin (Stone and others 2005) with the information portrayed on its sister map, the Surficial Materials Map of Connecticut (Stone and others, 1992).  When used together, these maps provide a three dimensional context for understanding and predicting the internal composition, resource potential and hydrologic character of Connecticut's glacial and postglacial deposits. Both were compiled at 1:24,000 scale, and published at 1:125,000 scale.

The Quaternary Geologic Map of Connecticut and Long Island Sound Basin (Stone and others, 2005) portrays the glacial and postglacial deposits of Connecticut (including Long Island Sound) with an emphasis on where and how they were emplaced. Glacial Ice-Laid Deposits (thin till, thick till, and deposits of individual end moraines), Early Postglacial Deposits (Late Wisconsinan to Early Holocene stream terrace and inland dune deposits) and Holocene Postglacial Deposits (alluvium, swamp deposits, marsh deposits, beach and dune deposits, talus, and artificial fill) are differentiated from Glacial Meltwater Deposits. This mapping is based on the concept of systematic northward retreat of the Late Wisconsinan glacier.  Meltwater deposits are divided into six depositional system categories (Deposits of Major Ice-Dammed Lakes, Deposits of Major Sediment-Dammed Lakes, Deposits of Related Series of Ice-Dammed Ponds, Deposits of Related Series of Sediment-Dammed Ponds, Deposits of Proximal Meltwater Streams, and Deposits of Distal Meltwater Streams) based on the arrangement and character of the groupings of sedimentary facies (morphosequences).

The Surficial Materials Map of Connecticut (Stone and others, 1992) portrays the glacial and postglacial deposits of Connecticut in terms of their aerial extent and subsurface textural relationships. Glacial Ice-Laid Deposits (thin till, thick till, end moraine deposits) and Postglacial Deposits (alluvium, swamp deposits, marsh deposits, beach deposits, talus, and artificial fill) are differentiated from Glacial Meltwater Deposits. The meltwater deposits are further characterized using four texturally-based map units (g = gravel, sg = sand and gravel, s = sand, and f = fines). In many places a single map unit (e.g. sand) is sufficient to describe the entire meltwater section.  Where more complex stratigraphic relationships exist, "stacked" map units are used to characterize the subsurface (e.g. sg/s/f - sand and gravel overlying sand overlying fines). Where postglacial deposits overlie meltwater deposits, this relationship is also described (e.g. alluvium overlying sand). Map unit definitions (Surficial Materials Polygon Code definitions, found in the metadata) provide a short description of the inferred depositional environment for each of the glacial meltwater map units.

The geologic contacts between till and meltwater deposits coincide on both the Quaternary and Surficial Materials maps, as do the boundaries of polygons that define areas of thick till, alluvium, swamp deposits, marsh deposits, beach and dune deposits, talus, and artificial fill. Within the meltwater deposits, a Quaternary map unit (deposit) may contain several Surficial Materials textural units (akin to facies within a delta, for example). Combining the textural and vertical stacking information from the Surficial Materials map with the orderly portrayal of morphosequence relationships, up and down valley, that can be gleaned from the Quaternary map provides a three dimensional predictive context for relating the geologic setting of Connecticut's glacial meltwater deposits to their behavior as aquifers and/or transmitters of contaminants.

Since this data layer is a polygon and line feature representation of the two maps combined, each map unit's depiction and description could provide information as to its aerial extent, subsurface textural characteristics, depositional and paleogeographic settings, and facies composition in a morphosequence context. Therefore, a typical meltwater polygon would have a combination of Quaternary (e.g. Deposit of Major Sediment-Dammed Lake; Glacial Lake Middletown Cromwell Deltaic Deposit) and Surficial Materials (e.g. sand and gravel overlying sand overlying fine) map attributes.  Additional polygon features are incorporated to define surface water areas for streams, lakes, ponds, bays, and estuaries greater than 5 acres in size. Line features describe the type of boundary between individual geologic or textural units such as a geologic contact line between two different geologic units or a linear shoreline feature between a textural unit and an adjacent waterbody.

The data have been updated to reflect minor changes in map unit name (QUPOLY_COD) for consistency with the 2005 publication of the Quaternary Geologic Map of Connecticut and Long Island Sound Basin. Previously distributed versions of CTQSGEOM were consistent with the 1998 Open-file Report for the same map.

It is important to note that this data layer represents only the on-land portion of the Quaternary Geologic Map of Connecticut and Long Island Sound Basin (Stone and others, 2005). The off-shore geologic units are organized in separate data layers (LISQMOR, LISQFAN, LISQLAKE, LISQCHAN, LISQMARD) which can be used in conjunction with this data layer. These Long Island Sound layers have been mapped at 1:80,000 scale using seismic reflection data.

The CTQSGEOM data layer should be used as the geologic base for Connecticut Quaternary Geology / Surficial Materials Features (CTQSFEAT) data layer which represents features such as eskers, meltwater channels, spillways, and locations of radio-carbon dated samples.
Purpose:
Connecticut Quaternary Geology and Surficial Materials is 1:24,000-scale data suitable for geologic and environmental mapping and analysis purposes. Not intended for maps printed at map scales greater or more detailed than 1:24,000 scale (1 inch = 2,000 feet.). Not intended for analysis with other digital data compiled at scales greater than or more detailed than 1:24,000 scale. This data layer should be used as the geologic base for Connecticut Quaternary Geology / Surficial Materials Features (CTQSFEAT). The data layer can be used in conjunction with data layers representing related geologic features in the Long Island Sound Basin (LISQMOR, LISQFAN, LISQLAKE, LISQCHAN, LISQMARD).
Supplemental_Information:
Data manually digitized from 1:24,000-scale mylar quadrangle compilation sheets prepared for the Surficial Materials Map of Connecticut, 1:125,000 scale (Stone and others, 1992) and the Quaternary Geologic Map Of Connecticut and Long Island Sound Basin, 1:125,000 scale (Stone and others,2005).  For a more complete understanding of the geologic principles behind the data it is advisable to consult these source maps which contain cross sections, diagrams and text not available in digital form.  Digital files which should be used with this data set include: SIM-2784.pdf (pamphet from the Quaternary Geologic Map Of Connecticut and Long Island Sound Basin), Surficial Materials data layer, and the companion data sets: Connecticut Quaternary Geology / Surficial Materials Features (CTQSFEAT), and Long Island Sound moraines (LISQMOR), lacustrine fans (LISQFAN), lake-bottom and deltaic deposits (LISQLAKE), channel-fill deposits (LISQCHAN), and marine deltaic deposits (LISQMARD); all available for download at http://www.dep.state.ct.us/gis.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2005
Currentness_Reference:
publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -73.692870
East_Bounding_Coordinate: -71.864172
North_Bounding_Coordinate: 41.331502
South_Bounding_Coordinate: 40.874739
Keywords:
Theme:
Theme_Keyword_Thesaurus: none
Theme_Keyword: geology
Theme_Keyword: surficial
Theme_Keyword: morphosequence
Theme_Keyword: glacial
Theme_Keyword: post-glacial
Theme_Keyword: gravel
Theme_Keyword: sand
Theme_Keyword: till
Theme_Keyword: stratified drift
Theme_Keyword: depositional system
Theme_Keyword: unconsolidated materials
Theme_Keyword: texture
Theme_Keyword: grainsize
Theme_Keyword: meltwater deposition
Theme_Keyword: Quaternary
Theme_Keyword: Pleistocene
Theme_Keyword: ice retreat
Theme_Keyword: glaciation
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: geoscientificInformation
Place:
Place_Keyword_Thesaurus: U.S. Department of Commerce, 1987, Codes for the Identification of the States, the District of Columbia and the Outlying Areas of The United States, and Associated Areas (Federal Information Processing Standard 5-2): Washington, DC, National Institute of Standards and Technology.
Place_Keyword: Connecticut
Place_Keyword: CT
Place:
Place_Keyword_Thesaurus: U.S. Department of Commerce, 1995, Countries, Dependencies, Areas of Special Sovereignty, and Their Principal Administrative Divisions (Federal Information Processing Standard (FIPS) 10-4): Washington, D.C., National Institute of Standards and Technology.
Place_Keyword: United States of America
Place_Keyword: USA
Temporal:
Temporal_Keyword_Thesaurus: none
Temporal_Keyword: Quaternary
Temporal_Keyword: Pleistocene
Temporal_Keyword: Holocene
Temporal_Keyword: Recent
Access_Constraints: None. The data is in the public domain and may be redistributed.
Use_Constraints:
No restrictions or legal prerequisites for using the data. The data is suitable for use at appropriate scale, and is not recommended for use with other data layers having source map scales greater than 1:24,000 (1 inch = 2000 feet) or printed on maps at scales greater or more detailed than 1:24,000 scale (1 inch = 2,000 feet). The geologic contacts are considered accurate as mapped at 1:24,000 scale. While it may be desirable to represent the geology at a larger scale for site-specific applications, keep in mind that 1:24,000-scale accuracy may not be appropriate for such uses. Although this data set has been used by the State of Connecticut, Department of Environmental Protection, no warranty, expressed or implied, is made by the State of Connecticut, Department of Environmental Protection 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 U.S. Geological Survey or the State of Connecticut, Department of Environmental Protection in the use of these data or related materials. The user assumes the entire risk related to the use of these data. Once the data is distributed to the user, modifications made to the data by the user should be noted in the metadata. When printing this data on a map or using it in a software application, analysis, or report, please acknowledge the U.S. Geological Survey and the State of Connecticut, Department of Environmental Protection as the source for this information. For example, include the following data source description when printing this layer on a map: Quaternary Geology - From the Quaternary Geology/Surficial Materials Master layer, compiled and published by the USGS and CT DEP. Source map scale is 1:24,000. The data is most relevent when used at the intended state-wide scale of 1:125,000 and in conjunction with the additional information found only on the following parent maps: Surficial Materials Map of Connecticut (Stone and others, 1992) and Quaternary Geologic Map of Connecticut and Long Island Sound Basin (Stone and others, 2005).
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Janet Radway Stone
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address:
1080 Shennecossett Rd
City: Groton
State_or_Province: Connecticut
Postal_Code: 06340
Country: USA
Contact_Voice_Telephone: 860-405-9210
Contact_Facsimile_Telephone: 860-405-9214
Contact_Electronic_Mail_Address: jrstone@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name: http://www.cteco.uconn.edu/metadata/dep/browsegraphic/quaternarygeologylisfullview.gif
Browse_Graphic_File_Description:
Full view of Connecticut Quaternary Geology Long Island Sound Basin Data
Browse_Graphic_File_Type: GIF
Browse_Graphic:
Browse_Graphic_File_Name: http://www.cteco.uconn.edu/metadata/dep/browsegraphic/quaternarygeologylisfanfullview.gif
Browse_Graphic_File_Description:
Full view of Connecticut Quaternary Geology Long Island Sound Submerged Marine Lacustrine Fan Deposits
Browse_Graphic_File_Type: GIF
Data_Set_Credit:
Kristi LeDuc, Margaret Thomas, and Mary DiGiacomo-Cohen for designing, compiling, digitizing, and editing the Quaternary Geology and Surficial Materials data layer. Much of the production effort was undertaken by the Long Island Sound Resource Center: a partnership between the State of Connecticut, Department of Environmental Protection and the University of Connecticut Marine Sciences and Technology Center. This digital data was produced by the State of Connecticut, Department of Environmental Protection with support from the U.S. Geological Survey, the U.S. Environmental Protection Agency, and the Connecticut Department of Public Health and Addiction Services. The U.S. Geological Survey in cooperation with the State of Connecticut, Department of Environmental Protection, Geological and Natural History Survey drafted the 1:24,000-scale compilation sheets used to publish the 1:125,000-scale Surficial Materials Map of Connecticut, Stone and others, 1992 and create the 1:24,000-scale digital data.
Native_Data_Set_Environment:
Microsoft Windows 2000 Version 5.2 (Build 3790) Service Pack 2; ESRI ArcCatalog 9.2.6.1500
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
none
Logical_Consistency_Report:
none
Completeness_Report:
none
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The horizontal positional accuracy of these data is uknown.
Lineage:
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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: 458
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Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Lambert Conformal Conic
Lambert_Conformal_Conic:
Lambert Conformal Conic
Standard_Parallel: 41.200000
Standard_Parallel: 41.866667
Longitude_of_Central_Meridian: -72.750000
Latitude_of_Projection_Origin: 40.833333
False_Easting: 999999.999996
False_Northing: 499999.999998
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.000328
Ordinate_Resolution: 0.000328
Planar_Distance_Units: survey feet
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Altitude_Resolution: 1.000000
Altitude_Encoding_Method: Explicit elevation coordinate included with horizontal coordinates
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Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: Connecticut Quaternary Geology Long Island Submerged Marine Lacustrine Fan Deposits
Entity_Type_Definition:
Polygons represent map units which describe the Quaternary Geologic deposits.
Entity_Type_Definition_Source:
U.S. Geological Survey and State of Connecticut, Department of Environmental Protection
Attribute:
Attribute_Label: QUATGEOL
Attribute_Definition:
Quaternary Geology - This attribute provides the full text name for the values stored in the QUPOLY_COD field. Quaternary Geology is the English language equivalent of (decodes) the QUPOLY_COD field. For example, QUPOLY_COD and QUATGEOL attribute values for the same polygon feature are st and Stream-terrace deposits, respectively.
Attribute_Definition_Source:
U.S. Geological Survey and State of Connecticut, Department of Environmental Protection
Attribute_Domain_Values:
Unrepresentable_Domain:
Examples include: Inland dune deposits, Uncorrelated deposits of ice-dammed ponds, Mystic moraine deposits, Shepaug River deposits
Attribute:
Attribute_Label: OBJECTID
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: TYPE
Attribute:
Attribute_Label: QUPOLY_CD
Attribute:
Attribute_Label: SHAPE
Attribute_Definition:
Feature geometry.
Attribute_Definition_Source:
ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Coordinates defining the features.
Attribute:
Attribute_Label: SHAPE.area
Attribute:
Attribute_Label: SHAPE.len
Overview_Description:
Entity_and_Attribute_Overview:
none
Entity_and_Attribute_Detail_Citation:
Stone, J.R., Schafer, J.P., London, E.H., DiGiacomo-Cohen, M.L., Lewis, R.S. and Thompson, W.B., 2005, Quaternary Geologic Map of Connecticut and Long Island Sound Basin, U.S. Geological Survey Scientific Investigaions Map 2784, 2 sheets, scale 1:125,000.
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: State of Connecticut, Department of Enviromental Protection
Contact_Address:
Address_Type: mailing and physical address
Address:
79 Elm Street
City: Hartford
State_or_Province: Connecticut
Postal_Code: 06106-5127
Country: USA
Contact_Voice_Telephone: 860-424-3540
Contact_Facsimile_Telephone: 860-424-4058
Contact_Electronic_Mail_Address: dep.gisdata@ct.gov
Hours_of_Service: Monday to Friday, 08:30 to 16:30 Eastern Standard Time
Resource_Description: Connecticut Quaternary Geology Long Island Submerged Marine Lacustrine Fan Deposits
Distribution_Liability:
Although this data set  has been used by the State of Connecticut, Department of Environmental Protection, no warranty, expressed or implied, is made by the State of Connecticut, Department of Environmental Protection 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 State of Connecticut, Department of Environmental Protection in the use of these data or related materials. The user assumes the entire risk related to the use of these data. Once the data is distributed to the user, modifications made to the data by the user should be noted in the metadata.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Shapefile, Feature Class, ArcInfo Coverage
Format_Version_Number: ArcGIS
File_Decompression_Technique: Zip file
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: http://www.ct.gov/deep
Fees: An online copy of the data may be accessed without charge.
Custom_Order_Process:
The data distributor does not provide custom GIS analysis or mapping services. Data is available in a standard format and may be converted to other formats, projections, coordinate systems, or selected for specific geographic regions by the party receiving the data.
Technical_Prerequisites:
Geographic information sytem (GIS), computer-aided drawing or other mapping software is necessary to display, view and access the information.
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Metadata_Reference_Information:
Metadata_Date: 20120125
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Long Island Sound Resource Center, a partnership between the State of Connecticut, Department of Environmental Protection and the University of Connecticut
Contact_Person: Mary DiGiacomo-Cohen
Contact_Address:
Address_Type: mailing and physical address
Address:
Long Island Sound Resource Center, UConn Avery Point, 1080 Shennecossett Rd.
City: Groton
State_or_Province: CT
Postal_Code: 06340
Country: USA
Contact_Voice_Telephone: (860) 405-9015
Contact_Electronic_Mail_Address: lisrc@uconn.edu
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
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
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