Response of Ground-Penetrating Radar to Bounding Surfaces and Lithofacies Variations in Sand Barrier Sequences

Radar facies of paraglacial barrier systems: coastal New England, USA

“…Subsequently, FitzGerald et al (1987, 1992 and van Heteren et al (1994) analysed in more detail the stratigraphy of some paraglacial barriers along the Atlantic coast of eastern New England. Elsewhere, Baker (1991), Smith and Jol (1992) and Jol et al (1994) inferred depositional processes of several Australian and North American coastal spits, Meyers et al (1996) studied the internal structure of a barrier spit along the coast of Washington, and Dott and Mickelson (1995) used GPR in the analysis of a lacustrine beachridge complex in Michigan. Recently, Jol et al (1996) presented a selection of GPR sections from the Paci®c, Atlantic and Gulf coasts of North America.…”

Ground Penetrating Radar: A Useful Tool for Shallow Subsurface Stratigraphy Characterization

“…Therefore the possibilities offered by the GPR to investigate the subsoil in a non-invasively way, and to obtain 3D maps of the subsurface itself, becomes of crucial importance for geologists. The successful obtained by GPR investigations on sedimentary rock stratigraphy is well documented in literature (Annan and Davis, 1989;van Overmeeren, 1998;Mills and Speece, 1997;Mokma et al, 1990;Nobes et al, 2001;Lapen et al, 1996;Baker, 1991;Beres, et al, 1995;Leucci et al, 2000;Carrozzo et al, 2000;Carrozzo et al, 2003). Since GPR holds enormous potential for such studies, it is appropriate to assess some key considerations for, i) field data acquisition, ii) raw data processing in order to enhance data display, iii) EM wave velocity measurements in order to characterize sediments response and to perform the time to depth conversion, iv) lithological interpretation of the GPR data set.…”

Geographical Coastal Zonality

“…GPR was instrumental in imaging the internal architecture of a variety of recent geological settings: fluvial (Leclerc and Hickin, 1997;Roberts et al, 1997), glaciofluvial (Beres et al, 1995(Beres et al, , 1999, periglacial (Jol et al, 1996a;Busby and Merritt, 1999), aeolian (Schenk et al, 1993;Harari, 1996;Jol et al, 1998), and lake deltas (Jol and Smith, 1991;Smith and Jol, 1997). The application of GPR to coastal research has led to significant advances in our understanding of mesoscale (centimeters to 10's of meters) stratigraphy of marginal marine sequences and has already resulted in several radar facies models (Baker, 1991;FitzGerald et al, 1992;Jol et al, 1996b;van Heteren et al, 1996van Heteren et al, , 1998Smith et al, 1999;Buynevich and FitzGerald, 2000;FitzGerald et al, 2000). Knowledge of the principles and limitations of the GPR technique in coastal settings is essential if accurate and complete models of large-scale coastal development are attempted.…”