| OFR43 Results of Trenching Investigations Along the New Castle Railroad Survey-1 Seismic Line, New Castle, Delaware |
McLaughlin, P.P., Baxter, S.J., Ramsey, K.W., McKenna, T.E., Strohmeier, S.A. |
|
| RI35 Unconformities in the Fluvial Columbia Sediments Revealed by Thin Pebble Beds |
Spoljaric, N. |
|
| OFR3 Preliminary Report on the Earthquake of February 28, 1973 |
Woodruff, K.D., Jordan, R.R., Pickett, T.E. |
|
| OFR2 Preliminary Report on Seismic Events in Northern Delaware |
Jordan, R.R., Pickett, T.E., Woodruff, K.D. |
|
| RI10 Pleistocene Channels of New Castle County, Delaware |
Spoljaric, N. |
|
