Investigating the internal structure of holocene coastal sand dunes using ground-penetrating radar: example from the north coast of Northern Ireland

John McGourty; Peter Wilson

doi:10.1117/12.383554

27 April 2000 Investigating the internal structure of holocene coastal sand dunes using ground-penetrating radar: example from the north coast of Northern Ireland

John McGourty, Peter Wilson

Author Affiliations +

Proceedings Volume 4084, Eighth International Conference on Ground Penetrating Radar; (2000) https://doi.org/10.1117/12.383554
Event: 8th International Conference on Ground Penetrating Radar, 2000, Gold Coast, Australia

Abstract

The paper reports preliminary findings of ground-penetrating radar investigations into the internal structure of Holocene coastal dunes and the association of subsurface sediment properties, determined from borehole samples, to reflected images. The area of investigation is on the north coast of Northern Ireland and the coastal dunes are confined systems of mid-to-late Holocene age (less than 6000 years BP). The major influence on subsurface reflections is moisture and organic content; compaction of sediment is another important factor, albeit difficult to quantify. Dipping reflectors and deflated sections are attributed to former dune ridges. The study highlights the need for other investigative techniques to be used in conjunction with ground-penetrating radar for a more coherent picture of dune internal structure.

Citation Download Citation

John McGourty and Peter Wilson "Investigating the internal structure of holocene coastal sand dunes using ground-penetrating radar: example from the north coast of Northern Ireland", Proc. SPIE 4084, Eighth International Conference on Ground Penetrating Radar, (27 April 2000); https://doi.org/10.1117/12.383554

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