Open AccessA Lithospheric Seismic Profile in Britain—I Preliminary Results *
Author(s) -
Bamford D.,
Faber S.,
Jacob B.,
Kaminski W.,
Nunn K.,
Prodehl C.,
Fuchs K.,
King R.,
Willmore P.
Publication year - 1976
Publication title -
geophysical journal of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0016-8009
DOI - 10.1111/j.1365-246x.1976.tb00279.x
Subject(s) - geology , lithosphere , crust , seismology , mantle (geology) , tectonics , geophysics
Summary The planning, execution and preliminary results of a major Anglo‐German explosion seismic project are presented in this, paper I of a series. This Lithospheric Seismic Profile in Britain (LISPB) was planned as a reversed 1000 km line between two major sea‐shot points off Cape Wrath in Scotland and one in the English Channel; additional sea‐shots and intermediate land‐shots were fired to give reversed and overlapping crustal coverage (to 180–400 km distance) along the line. In all, 29 shots were fired and 60 mobile magnetic tape stations recorded three‐components of ground‘motion. The resulting 14 crustal and three long‐range profiles have observations at intervals of typically 2–4 km. Recordings have been digitized and four examples of filtered, computer‐plotted record sections are presented to illustrate data quality. In a preliminary analysis, phase correlations are discussed and some models presented; the latter especially are more relevant to future interpretations than to geological or tectonic problems. However, significant variations in crustal thickness and in the nature of the crust‐mantle transition do seem to occur beneath the British Isles.