Open AccessSeismic Investigations in the North Sea, 1 and 2
Author(s) -
Collette B. J.,
Lagaay R. A.,
Ritsema A. R.,
Schouten J. A.
Publication year - 1967
Publication title -
geophysical journal of the royal astronomical society
Language(s) - English
Resource type - Journals
eISSN - 1365-246X
pISSN - 0016-8009
DOI - 10.1111/j.1365-246x.1967.tb03147.x
Subject(s) - geology , seismic refraction , crust , refraction , permian , line (geometry) , seismology , earth crust , series (stratigraphy) , gravity anomaly , shot (pellet) , paleontology , structural basin , geometry , chemistry , physics , mathematics , organic chemistry , oil field , optics
Summary Gravity measurements indicate that the post‐Hercynian basins in the North Sea area are in isostatic equilibrium. This means that most probably the crust underwent a considerable thinning since the Permian. Part 1 describes the seismic programme that is carried out to investigate some aspects of this problem. Part 2 gives the results of a series of five reverse refraction lines to cover the surface structure of a crustal refraction line shot east of Flamborough Head. In a following part the results of this latter line will be discussed and of other seismic investigations in this programme.