GM27 Geologic Map of the Elkton, Saint Georges, and Delaware City Quadrangles, Delaware |
Tomlinson, J.L., Ramsey, K.W. |
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GM23 Geologic Map of the Seaford West and Seaford East Quadrangles, Delaware |
Tomlinson, J.L., Ramsey, K.W., Andres, A.S. |
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GM17 Geologic Map of the Harbeson Quadrangle, Delaware |
Ramsey, K.W., Tomlinson, J.L. |
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RI55 Geology of the Milford and Mispillion River Quadrangles |
Ramsey, K.W., Groot, J.J. |
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RI50 Plant Microfossils of the Calvert Formation of Delaware |
Groot, J.J. |
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RI47 Ages of the Bethany, Beaverdam, and Omar Formations of Southern Delaware |
Groot, J.J., Ramsey, K.W., Wehmiller, J.F. |
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