DGS Geologic Map No. 12 (Lewes-Cape Henlopen area)

Dataset Identification:

Resource Abstract:
This data set contains the rock unit polygons for the surficial geology in ESRI shapefile format for the Delaware Coastal Plain covered by DGS Geologic Map No. 12 (Lewes-Cape Henlopen area). The original Geologic Map Description of the published map follows: The surficial geology of the Lewes and Cape Henlopen quadrangles reflects the geologic history of the Delaware Bay estuary and successive high and low stands of sea levels during the Quaternary. The subsurface Beaverdam Formation was deposited as part of a fluvial-estuarine system during the Pliocene, the sediments of which now form the core of the Delmarva Peninsula. Following a period of glacial outwash during the early Pleistocene represented by the Columbia Formation found to the northwest of the map area (Ramsey, 1997), the Delaware River and Estuary developed their current positions. The Lynch Heights and Scotts Corners formations (Ramsey, 1993, 1997, 2001) represent shoreline and estuarine deposits associated with high stands of sea level during the middle to late Pleistocene on the margins of the Delaware Estuary. In the map area, the Lynch Heights Formation includes relict spit and dune deposits at the ancestral intersection of the Atlantic Coast and Delaware Bay systems, similar in geomorphic position to the modern Cape Henlopen. The relationship between the Lynch Heights and Scotts Corners is shown in cross-section A-A'. The Lynch Heights is composed of a fine, well-sorted sand. The break in topography (scarp) between the surface of the Lynch Heights (at approx. 25 ft and higher) and that of the Scotts Corners (at approx. 6 to 15 feet) represents ancestral shorelines of Delaware Bay during a high sea level contemporaneous with the deposition of the Scotts Corners. The cross section also shows two depositional units within the Scotts Corners. A younger shoreline sequence with sand at the land surface has cut into an older unit (marked by silt at the land surface). Gravel beds within both units represent shoreline deposits like those found along the modern Delaware Bay in the area. Two depositional units within the Scotts Corners is consistent with observations of the Scotts Corners by Ramsey (1997) just to the north of the map area. Both of these units were deposited during the last interglacial period. The older unit may be attributed to the high sea stand at 120,000 years B.P. and the younger unit to one at 80,000 years B.P. (Ramsey, 1997). Quaternary deposits were transgressed by Holocene swamp, marsh, shoreline, estuarine and spit deposits. The spit deposits form the modern Cape Henlopen (Ramsey, et al., 2000, Ramsey, 1999). Cross-section B-B' depicts sediment distribution within the Cape Henlopen complex and stratigraphic relationships with units underlying the Holocene spit deposits. Offshore surficial sediment distribution is a compilation of historical offshore core and grab sample textural descriptions and data (Hoyt, 1982, Maley, 1981, Marx, 1981, Oostdam, 1971, Sheridan et al., 1974, Strom, 1972, 1976, Terchunian, 1985, Weil, 1976, Wethe et al., 1982, 1982a, 1983 and unpublished data in DGS files). From core descriptions, the top six inches was used as the surficial sediment type. Sediment textures shown on the map show a general distribution of sediment size over a large area. Site-specific information about bottom sediment textures may require additional sampling. Refer to the adjacent triangular diagram for sediment texture abbreviations. Historical shoreline positions are from historical U.S. Coast&Geodetic Survey T-sheets (1884) and topographic maps (1944, 1977). Stratigraphic units found at depth within the map area are shown with the geophysical log of Ni31-07, a 1035-foot deep geothermal test hole drilled in 1978 for the U.S. Department of Energy. Major aquifer units are also shown (Andres, 1986).
Citation
Title DGS Geologic Map No. 12 (Lewes-Cape Henlopen area)
publication  Date   2014-02-01T00:00:00
cited responsible party - originator
individual Name K. W. Ramsey
organisation Name  Delaware Geological Survey
position Name missing
Contact information
Telephone
Voice 302-831-2833
Address
257 Academy Street, Newark, DE, 19716
electronic Mail Address DelGeoSurvey@UDel.EDu
Topic Category:  geoscientificInformation
Keywords:
Theme keywords (theme):
usgincm:geologic unit
usgincm:geologic contact feature
usgincm:shear displacement structure
usgincm:fault feature
usgincm:geosciml
delaware geology
cross-section
coastal plain geology
nuclear waste
delaware
sussex county
lewes
cape henlopen
great marsh
fort miles
state park
usginres:collection:dataset
usginres:document:image:stillimage:human-generated image:map
usginres:document:text
Keywords
Delaware
Delaware Geological Survey
Miscellaneous Geologic Maps
OneGeology Maps
WMS Services
WFS Services
Downloadable Files
thesaurus name >
Title Server Collections
publication  Date   2012-06-06
Theme keywords (theme):
Core
Observation
Survey
thesaurus name >
Title Activity > Observation
publication  Date   2017-01-19
other Citation Details  Cinergi keyword enhanced at Thu Jan 19 07:42:52 UTC 2017
Theme keywords (theme):
River
thesaurus name >
Title Feature > Hydrologic Feature
publication  Date   2017-01-19
other Citation Details  Cinergi keyword enhanced at Thu Jan 19 07:42:52 UTC 2017
Theme keywords (theme):
Quaternary
Pliocene
Pleistocene
Holocene
thesaurus name >
Title Geologic Time > Phanerozoic
publication  Date   2017-01-19
other Citation Details  Cinergi keyword enhanced at Thu Jan 19 07:42:52 UTC 2017
Theme keywords (theme):
Subsurface
thesaurus name >
Title Realm > Subsurface
publication  Date   2017-01-19
other Citation Details  Cinergi keyword enhanced at Thu Jan 19 07:42:52 UTC 2017
Theme keywords (theme):
Geothermal
thesaurus name >
Title Feature > Geologic Feature
publication  Date   2017-01-19
other Citation Details  Cinergi keyword enhanced at Thu Jan 19 07:42:52 UTC 2017
Theme keywords (theme):
Silt
Gravel
Waste
thesaurus name >
Title Material > Environmental Material
publication  Date   2017-01-19
other Citation Details  Cinergi keyword enhanced at Thu Jan 19 07:42:52 UTC 2017
Theme keywords (theme):
Height
Position
Displacement
thesaurus name >
Title Property > Measure
publication  Date   2017-01-19
other Citation Details  Cinergi keyword enhanced at Thu Jan 19 07:42:52 UTC 2017
Theme keywords (theme):
Geomorphology
Geophysics
thesaurus name >
Title Science Domain > Earth Science
publication  Date   2017-01-19
other Citation Details  Cinergi keyword enhanced at Thu Jan 19 07:42:52 UTC 2017
Theme keywords (theme):
CAPE
thesaurus name >
Title Material > Chemical
publication  Date   2017-01-19
other Citation Details  Cinergi keyword enhanced at Thu Jan 19 07:42:52 UTC 2017
Theme keywords (theme):
Topographic Map
thesaurus name >
Title Resource Type > Spatial Data
publication  Date   2017-01-19
other Citation Details  Cinergi keyword enhanced at Thu Jan 19 07:42:52 UTC 2017
Theme keywords (theme):
Coastal Plain
Peninsula
Deposit
Plain
thesaurus name >
Title Feature > Physiographic Feature
publication  Date   2017-01-19
other Citation Details  Cinergi keyword enhanced at Thu Jan 19 07:42:52 UTC 2017
Theme keywords (theme):
Formation
thesaurus name >
Title Realm > Geosphere
publication  Date   2017-01-19
other Citation Details  Cinergi keyword enhanced at Thu Jan 19 07:42:52 UTC 2017
Theme keywords (theme):
Document
thesaurus name >
Title Resource Type > Document
publication  Date   2017-01-19
other Citation Details  Cinergi keyword enhanced at Thu Jan 19 07:42:52 UTC 2017
Theme keywords (theme):
Sea Level
thesaurus name >
Title Realm > Critical Zone
publication  Date   2017-01-19
other Citation Details  Cinergi keyword enhanced at Thu Jan 19 07:42:52 UTC 2017
Theme keywords (theme):
Deposition
thesaurus name >
Title Method > Information Processing
publication  Date   2017-01-19
other Citation Details  Cinergi keyword enhanced at Thu Jan 19 07:42:52 UTC 2017
Theme keywords (theme):
Land Surface
thesaurus name >
Title Realm > Earth Surface
publication  Date   2017-01-19
other Citation Details  Cinergi keyword enhanced at Thu Jan 19 07:42:52 UTC 2017
Theme keywords (theme):
Sand
thesaurus name >
Title Material > Rock Material
publication  Date   2017-01-19
other Citation Details  Cinergi keyword enhanced at Thu Jan 19 07:42:52 UTC 2017
Theme keywords (theme):
MAPS
thesaurus name >
Title Equipment > Instrument
publication  Date   2017-01-19
other Citation Details  Cinergi keyword enhanced at Thu Jan 19 07:42:52 UTC 2017
Theme keywords (theme):
GEOLOGY
ESRI
thesaurus name >
Title Organization > Commercial Organization
publication  Date   2017-01-19
other Citation Details  Cinergi keyword enhanced at Thu Jan 19 07:42:52 UTC 2017
Theme keywords (theme):
Current
Shoreline
Coast
thesaurus name >
Title Feature > Marine Feature
publication  Date   2017-01-19
other Citation Details  Cinergi keyword enhanced at Thu Jan 19 07:42:52 UTC 2017
Theme keywords (theme):
Dataset
thesaurus name >
Title Resource Type > Data Set
publication  Date   2017-01-19
other Citation Details  Cinergi keyword enhanced at Thu Jan 19 07:42:52 UTC 2017
Theme keywords (theme):
Estuary
Swamp
Marsh
Aquifer
thesaurus name >
Title Feature > Environmental Feature
publication  Date   2017-01-19
other Citation Details  Cinergi keyword enhanced at Thu Jan 19 07:42:52 UTC 2017
Resource language:  eng
Character set encoding of resource:  utf8
Resource progress code:  completed
Resource extent
Geographic Extent
Geographic Bounding Box
westBoundLongitude  -75.250286
eastBoundLongitude  -74.999269
northBoundLatitude  38.875629
southBoundLatitude  38.749379
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Resource distribution information

Distributor
distributor contact - distributor
individual Name No Name Was Given
organisation Name  Delaware Geological Survey
position Name missing
Contact information
Telephone
Voice 302-831-2833
Address
257 Academy Street, Newark, DE, 19716
electronic Mail Address DelGeoSurvey@UDel.EDu
Distributor
distributor contact - distributor
individual Name 
organisation Name  Arizona Geological Survey
position Name missing
Contact information
Telephone
Voice 520-770-3500
Address
416 W. Congress St., Suite 100, Tucson, AZ, 85701
electronic Mail Address metadata@usgin.org
Digital Transfer Options
Linkage for online resource
name Download and Explore data directly from DGS
URL: http://www.dgs.udel.edu/datasets/dgs-geologic-map-no-12-lewes-cape-henlopen-area-dataset
link function 375
Digital Transfer Options
Linkage for online resource
name Service Description
URL: http://maps.dgs.udel.edu/geoserver/dgs/ows?service=wms&version=2.0.0&request=GetCapabilities&typeName=geomap12
protocol OGC:WMS
link function 381
Digital Transfer Options
Linkage for online resource
name Service Description
URL: http://maps.dgs.udel.edu/geoserver/dgs/ows?service=wfs&version=2.0.0&request=GetCapabilities&typeName=geomap12
protocol OGC:WFS
link function 381
Digital Transfer Options
Linkage for online resource
name NGDS RSS feed for services notifications
URL: http://notifications.usgin.org/
link function 375

Metadata data stamp:  2014-12-22T19:33:41Z
Resource Maintenance Information
maintenance or update frequency:  IRREGULAR
notes: This metadata record has been processed by the iso-19115-to-usgin-19115-data XSLT to ensure that all mandatory content for USGIN profile has been added.2013-11-04T12:00:00
Metadata contact - pointOfContact
individual Name No Name Was Given
organisation Name  No Organization Name Was Given
position Name missing
Contact information
Telephone
Voice No Phone Number Was Given
Address
No Street Address Was Given, No City Was Given, No State Was Given, No Zip Was Given
electronic Mail Address No email Was Given
Metadata scope code  Dataset
Metadata hierarchy level name:  collection:dataset
Metadata language  eng
Metadata character set encoding:   utf8
Metadata standard for this record:  ISO-USGIN
standard version:  1.2
Metadata record identifier:  6e84ef507102d99c8d5b44d3c21fcaf1
URI for dataset described: > http://www.opengis.net/def/nil/OGC/0/missing/2013-04-04T12:00:00Z

Metadata record format is ISO19139-2 XML (MI_Metadata)