Hosted by the Delaware Geological Survey, Association of American State Geologists, and the U.S. Geological Survey.
University of Delaware
June 1-4, 2014
The 18th Annual Workshop on Digital Mapping Techniques (DMT'14) will be held June 1-4, at John M. Clayton Hall Conference Center at the University of Delaware, Newark, Delaware. Each year, these meetings have served a critical role for the geosciences, fostering informal discussion and exchange of technical information among scientists, cartographers, and GIS specialists, primarily from State and Federal agencies, who are using digital techniques to create, publish, manage, and analyze geologic maps and data.
A brief summary of the technology used on the site as well as its purpose and other notes.
DGS Well Db24-18
University of Delaware Ag Farm Weather Station
USGS 01479000 WHITE CLAY CREEK NEAR NEWARK, DE
USGS 01478650 WHITE CLAY CREEK AT NEWARK, DE
OFR11 Effects of Earthquakes and Earth Tides on Water Levels in Selected Wells in the Piedmont of Delaware
Examination of continuous water-level hydrographs from two artesian observation wells in the Piedmont near Newark, Delaware reveals water-level fluctuations caused by earthquakes and by earth tides. The effects of 14 distant earthquakes with MS (surface wave) magnitudes between 6.7 and 8.0 and MB (body wave) magnitudes between 5.9 and 7.0 (National Earthquake Information Service, 1975-1977) have been recorded over a two-year and ten-month period.
Well and aquifer coefficients have been determined for a crystalline rock aquifer system that provides part of the water supply of the City of Newark, Delaware. Conventional analytical methods can be used to derive coefficients for crystalline rocks in the Newark area if the limitations of such methods are recognized and if the local hydrologic framework is known.