DGS Geologic Map No. 11 (Milton-Ellendale area)

Dataset Identification:

Resource Abstract:
This data set contains the rock unit polygons for the surficial geology in the Delaware Coastal Plain covered by DGS Geologic Map No. 11 (Milton-Ellendale area) in ESRI shapefile format. The original Geologic Map Description of the published map follows: The surficial geology of the Ellendale and Milton quadrangles reflects the geologic history of the Delaware Bay estuary and successive high and low sea levels during the Quaternary. Ramsey (1992) interpreted the Beaverdam Formation as deposits of a fluvial-estuarine system during the Pliocene. Sediment supply was high, in part due to geomorphic adjustments in the Appalachians related to the first major North Hemisphere glaciations around 2.4 million years ago. The Beaverdam Formation forms the core of the central Delmarva Peninsula around which wrap the Quaternary deposits. The Columbia Formation which is recognized to the north of the map area was deposited as the result of the distal portion of glacial outwash of the Delaware and possibly Susquehanna rivers during the early Pleistocene (Ramsey, 1997). After the deposition of the Columbia, the Delaware River and Bay developed their present geographic positions. In the northwest portion of the map area contiguous with the area mapped by Ramsey (1993) as the Columbia Formation, the surficial unit has many similarities in texture, color, bedding, geophysical log character, and thickness with the Beaverdam Formation to the south and east. No diagnostic pollen-bearing beds or other fossils have been found in the area to aid in identification of the unit. Because of the continuity in thickness and lithic character with the Beaverdam, the area in mapped as Tbd?. Where the Beaverdam is mapped, silty clay to clayey silt beds yielded pollen assemblages characteristic of the unit (Andres and Ramsey, 1995, 1996; Groot and Jordan, 1999). The Lynch Heights and Scotts Corners formations (Ramsey, 1993, 1997) represent shoreline and estuarine deposits associated with high stands of sea level during the middle to late Pleistocene on the margins of Delaware Bay. The western boundary of these units is found at a topographic break (scarp) that marks the ancestral, erosional shoreline of Delaware Bay during the sea-level high stand. Upland dunes (Qd) are extensive linear dunes and large dune fields found along the contact between the Lynch Heights and older deposits to the west. Some of these dunes may be relict coastal dunes associated with the ancestral shoreline of Delaware Bay at the time of Lynch Heights deposition. Dunes to the west may be younger; late Pleistocene or early Holocene in age. Carolina Bay deposits are circular to semi-circular depressions with sand rims found in the northern half of the Milton Quadrangle. They are thought to be cold climate features associated with reduced tree cover and increased winds during the glacial periods of the Pleistocene (Ramsey, 1997). Quaternary upland deposits (Qud) cover much of the southern half of the Ellendale Quadrangle. These deposits represent deposition in swamps associated with poor drainage and eolian deposition during cold climate phase of the late Pleistocene and early Holocene. The eolian sands are found both as small dunes in this area, but more commonly, as sheets of fine to medium sand with no to rare sedimentary structures. Although no radiocarbon dates have been collected from this area, the age of the deposits is considered to be latest Pleistocene to early Holocene on the bases of similarities in stratigraphic position and depositional style with the Cypress Swamp Formation (Andres and Howard, 2000) found to the south of the map area. Quaternary and older deposits are transgressed by Holocene swamp, marsh, shoreline, and estuarine deposits along the stream valleys and shoreline of Delaware Bay. Stratigraphic units found at depth within the map area are shown with the geophysical log of Ng42-17, a deep test well drilled in Milton. Major aquifer units are also shown. Cross section A-A' is a north-south section roughly along Route 113 through the center of the Ellendale Quadrangle. It shows the relationship of the Beaverdam Formation (Tbd?) and the Beaverdam Formation (Tbd). Also shown are the units underlying the surficial units and position of the major aquifers. Cross-section B-B' is a west-east section showing the relationships between the Quaternary-Tertiary deposits undifferentiated, Lynch Heights, and Scotts Corners formations as well as underlying stratigraphic units. Aquifers shown in the cross-sections are water-bearing sand layers that are used for public, domestic, agricultural, and industrial sources of water. Where the surficial or water-table aquifer is in contact with sands of an underlying geologic unit such as the Manokin formation, the entire water-bearing unit is called the Columbia aquifer.
Citation
Title DGS Geologic Map No. 11 (Milton-Ellendale 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:geosciml
usgincm:geologic unit
usgincm:fault feature
usgincm:shear displacement structure
usgincm:geologic contact feature
delaware geology
cross-section
coastal plain geology
delaware
sussex county
nanticoke river
blades
bridgeville
seaford
coverdale crossroads
atlanta
jacobs crossroads
middleford
nanticoke acres
concord
reliance
flower station
whitney swamp
bridgeville branch
chapel branch
butler mill branch
deep creek
tubbs branch
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
Survey
thesaurus name >
Title Activity > Observation
publication  Date   2017-01-19
other Citation Details  Cinergi keyword enhanced at Thu Jan 19 03:04:49 UTC 2017
Theme keywords (theme):
Glaciation
Erosion
thesaurus name >
Title Process > Geologic Processes
publication  Date   2017-01-19
other Citation Details  Cinergi keyword enhanced at Thu Jan 19 03:04:49 UTC 2017
Theme keywords (theme):
River
Well
Water Table
Creek
thesaurus name >
Title Feature > Hydrologic Feature
publication  Date   2017-01-19
other Citation Details  Cinergi keyword enhanced at Thu Jan 19 03:04:49 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 03:04:49 UTC 2017
Theme keywords (theme):
Clay
Silt
Water
thesaurus name >
Title Material > Environmental Material
publication  Date   2017-01-19
other Citation Details  Cinergi keyword enhanced at Thu Jan 19 03:04:49 UTC 2017
Theme keywords (theme):
Position
Height
Topographic
Displacement
thesaurus name >
Title Property > Measure
publication  Date   2017-01-19
other Citation Details  Cinergi keyword enhanced at Thu Jan 19 03:04:49 UTC 2017
Theme keywords (theme):
Geomorphology
Geography
Geophysics
thesaurus name >
Title Science Domain > Earth Science
publication  Date   2017-01-19
other Citation Details  Cinergi keyword enhanced at Thu Jan 19 03:04:49 UTC 2017
Theme keywords (theme):
Base
thesaurus name >
Title Material > Chemical
publication  Date   2017-01-19
other Citation Details  Cinergi keyword enhanced at Thu Jan 19 03:04:49 UTC 2017
Theme keywords (theme):
Coastal Plain
Deposit
Peninsula
Topographic
Upland
Coastal Dune
Depression
Stream Valley
Plain
thesaurus name >
Title Feature > Physiographic Feature
publication  Date   2017-01-19
other Citation Details  Cinergi keyword enhanced at Thu Jan 19 03:04:49 UTC 2017
Theme keywords (theme):
Formation
Cover
thesaurus name >
Title Realm > Geosphere
publication  Date   2017-01-19
other Citation Details  Cinergi keyword enhanced at Thu Jan 19 03:04:49 UTC 2017
Theme keywords (theme):
Topographic
Document
thesaurus name >
Title Resource Type > Document
publication  Date   2017-01-19
other Citation Details  Cinergi keyword enhanced at Thu Jan 19 03:04:49 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 03:04:49 UTC 2017
Theme keywords (theme):
Deposition
Phasing
thesaurus name >
Title Method > Information Processing
publication  Date   2017-01-19
other Citation Details  Cinergi keyword enhanced at Thu Jan 19 03:04:49 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 03:04:49 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 03:04:49 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 03:04:49 UTC 2017
Theme keywords (theme):
Shoreline
thesaurus name >
Title Feature > Marine Feature
publication  Date   2017-01-19
other Citation Details  Cinergi keyword enhanced at Thu Jan 19 03:04:49 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 03:04:49 UTC 2017
Theme keywords (theme):
Estuary
Fossil
Tree
Swamp
Cypress Swamp
Marsh
Aquifer
thesaurus name >
Title Feature > Environmental Feature
publication  Date   2017-01-19
other Citation Details  Cinergi keyword enhanced at Thu Jan 19 03:04:49 UTC 2017
Resource language:  eng
Character set encoding of resource:  utf8
Resource progress code:  completed
Resource extent
Geographic Extent
Geographic Bounding Box
westBoundLongitude  -75.500142
eastBoundLongitude  -75.249705
northBoundLatitude  38.875121
southBoundLatitude  38.749882
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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-11-milton-ellendale-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=geomap11
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=geomap11
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:  2014-02-20T22:09:37Z
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:  6e84ef507102d99c8d5b44d3c21fb6ee
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)