Bulletin 54. Geophysical Methods of Exploration and their ...

ILLUSTRATIONS
PAGE
Fig. 17. Isostatic anomaly gravitational map of New Jersey based tlpofl
U. g. Coast and Geodetic Survey values ................. 50
t8. Typical seismograms from Norm_ and Lincoln on Cape May
seismic traverse ....................................... 60
19. Time-distance graphs for Barnegat Bay seismic traverse ..... 62
20. Reverse profile time-distance graph for Charleston Springs
Station, Barnegat Bay profile ........................... 63
21. Seismic-geologic profile across ,Atlantic Coastal Plain along
Barnegat Bay traverse ................................. 6,5
22. Comparison of basement s,arface relief in New Jersey with that
in the vicinity of Baltimore, Maryland .................. 68
25. Seismic-geologic profile across the Atlantic Coastal Plain along
Cape May traverse .................................... 69
24, 25 and 26. Time-dlstance graphs and station maps for Cape
May seismic traverse .................... Betv*-een pages 70-71
27. Comparative seismic velocity, gravitational and geologic structural
profiles along the l_amegat Bay and Cape May traverses
....................................... Between pages 73-74
28. Resldua| gravity anomaly' cur_'es on Bamegat Bay profile a/let
corrections fo¢ different assumptions on the subsurface basement
lithology ........................................ 75
29. A comparison of magnetic, gravitational and seismic data with
the geologic structure on the Gape May and Barnegat Bay traverses
.................................. Between pages 73-76
30. A comparison of gravitational and magnetic data with the
regional geology on a traverse passing through Phillipsburg
and Sea Bright, New Jersey ............................ 78
31. Magnetic profiles over the Rocky Hilt diabase and its buried
extension lying _eneath the Atlantic Coastal Plain ......... 79
32. The position of the buried connection between the Palisades
diabase and Rocky Hill as outlined by magnetic measurements
and well data ........................................ 8l
33. Seismic investigations in the _iclnity of Plainsbom and their
geological interpretation, ................. Between pages 82-83
34. An areal magnetic survey of the Grovers Mills-Plainsboro area 8.1
35. Subsurface geologic structural conditious beneath the coastal
plain in the Grovers Mills-Plalnsboro area as outiitacd by
magnetic measurements and well data ..................... 8}
[11]
NEW JERSEY GEOLOGICAL SURVEY