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Site content related to keyword: "Newark"

Kenneth D. Woodruff, Associate Director (1966 - 1992)

Kenneth D. Woodruff, Associate Director (1966 - 1992)
Date: May 1966 - Jan 1992

Kenneth D. Woodruff, Associate Director (1966 - 1992)

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Maps and Directions

Maps, driving directions, parking, and contact information for the Delaware Geological Survey.

About the Delaware Geological Survey

The DGS Building, University of Delaware, Newark Campus

The Delaware Geological Survey (DGS) is a science-based, public-service-driven Delaware state agency at the University of Delaware (UD) that conducts geologic and hydrologic research, service, and exploration for the benefit of the citizens of the First State. The mission of the DGS is to provide objective earth science information, advice, and service to its stakeholders, the citizens, policy makers, industries, and educational institutions of Delaware.

The Second Delaware Geological Survey

The Second Delaware Geological Survey
Date: Jun 1951

The Survey started its investigations in July 1951 with Johan J. Groot as State Geologist and Lecturer, later Professor of Geology, and Louis P. Vlangas as Geological Field Assistant. The University provided office space, which was shared with the Department of Geography. The cooperative program with the USGS, begun prior to 1951, was continued. Studies of the geology of New Castle County and of the ground-water resources of the Newark area were initiated, the latter with financial support of that city.

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Sillimanite established as Delaware State Mineral

Sillimanite - Delaware's State Mineral
Date: Jan 1977

In 1977, the Delaware General Assembly, acting on a proposal by the Delaware Mineralogical Society, established sillimanite as the Delaware State Mineral.

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RI22 Hydrogeology of Selected Sites in the Greater Newark Area, Delaware

RI22 Hydrogeology of Selected Sites in the Greater Newark Area, Delaware

Additional sources of ground water have been located in the Piedmont Province as a result of a ground-water exploration program conducted by the Delaware Geological Survey at the University of Delaware in cooperation with the City of Newark. Drilling sites for relatively high-yielding wells were located through the use of geophysical investigations, air-photo interpretation, field mapping, and review of existing data.

RI19 Geology of the Fall Zone in Delaware

RI19 Geology of the Fall Zone in Delaware

The complex geologic framework of the Fall Zone in Delaware is primarily caused by diverse structural features present in the crystalline basement rocks that have exerted a considerable influence on the distribution of the overlying sediments of the Coastal Plain.

RI18 Geology and Ground Water, University of Delaware, Newark, Delaware

RI18 Geology and Ground Water, University of Delaware, Newark, Delaware

The results of an intensive ground-water study on University of Delaware lands in the Newark area revealed additional sources of available ground water. Geophysical techniques, air-photo interpretation, studies of existing data, field mapping, test drilling, and pump tests were used as the bases for guiding additional well development. The study, conducted by the Delaware Geological Survey, was a cooperative effort between the University of Delaware and the City of Newark in response to mutual water supply problems. A potential ground-water yield of about 500 gpm was discovered on the University Laird Tract in the Piedmont Province. Ground water available from other locations in the Coastal Plain portion of the study area may total about 175 gpm. However, careful well development and proper well spacing will be necessary to obtain optimum yields.

RI16 Application of Geophysics to Highway Design in the Piedmont of Delaware

RI16 Application of Geophysics to Highway Design in the Piedmont of Delaware

The feasibility of using geophysical techniques in determining the amount of overburden and the nature of the subsurface along a proposed highway was tested in the Piedmont area of Delaware. The area is underlain by crystalline rocks capped by varying amounts of unconsolidated material or regolith. Seismic refraction and surface resistivity methods were used at selected stations and the interpretations were later compared to results from test holes and to the material exposed in road cuts. In general, interpretation of the seismic refraction results compared quite well with test borings and with field observations made after construction was started. Resistivity data were inconclusive in themselves but provided some additional control points when correlated with seismic refraction data. With proper control, it is concluded that such techniques could be useful in the Piedmont of Delaware for highway planning.

HM2 Geohydrology of the Newark Area, Delaware

Geohydrology of the Newark Area, Delaware

Geology and Hydrology of the Newark, Delaware area. There are 2 sheets in this series.

Map Scale: 
24,000

GM13 Geologic Map of New Castle County, Delaware

GM13 Geologic Map of New Castle County, Delaware

This map shows the surficial geology of New Castle County, Delaware at a scale of 1:100,000. Maps at this scale are useful for viewing the general geologic framework on a county-wide basis, determining the geology of watersheds, and recognizing the relationship of geology to regional or county-wide environmental or land-use issues. This map, when combined with the subsurface geologic information, provides a basis for locating water supplies, mapping ground-water recharge areas, and protecting ground and surface water. Geologic maps are also used to identify geologic hazards, such as sinkholes and flood-prone areas, to identify sand and gravel resources, and for supporting state, county, and local land-use and planning decisions.

Map Scale: 
100,000
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John H. Talley, Director and State Geologist (2002-2011)

John H. Talley, Director and State Geologist
Date: Jul 2002 - Jun 2011

John Talley joined the DGS as a project geologist in 1972, became a senior scientist and hydrogeologist by 1986, and rose to director and state geologist by 2004. He’s consulted with dozens of university, state, and federal governments and groups and amassed a list of more than 50 publications and reports.

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Robert R. Jordan, Director and State Geologist (1969 - 2003)

Robert R. Jordan, Director and State Geologist (1969 - 2003)
Date: Jun 1969 - Jan 2003

Robert R. Jordan, Director and State Geologist (1969 - 2003)

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DGS moves into a new building!

The home of DGS since 1989
Date: Jun 1989

The Delaware Geological Survey moves into its own home in 1989 after sharing Penny Hall with the UD Department of Geology for over 20 years.

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