Discussion of ‘Seabed imaging using a computer mapping package: an example from Dorset’ by T. D. Badman, M. A. Gravelle & G. M. Davis: Quarterly Journal of Engineering Geology and Hydrogeology, Vol. 33, 171–175

摘要: D. M. McCann & G. Culshaw write: We welcome the publication of this interesting paper giving details a bathymetric study near-shore area off Lyme Regis. This work adds to results major marine surveys carried out in between 1970 and 1975 by Institute Geological Sciences (IGS) (now British Survey [BGS]). As is not referenced ⇓Badman et al. (2000), we feel that brief description will complement their paper. In 1971 two were undertaken Regis West Bay for similar reasons survey described namely evaluate immediate sub-bottom geology its possible effect on coastal landsliding (for example, ⇓Denness 1975). The followed earlier acoustic Weymouth ⇓Donovan Stride (1961). Three boreholes sunk, depths 88 58 m near beach at Charmouth (3.39 m above od [SY 3656 9308]; 3.43 m 3653 9309]) other depth 86 m Penn Cross, (166.99 m 3482 9435]). Logs are available BGS archives, together with physical property measurements samples from (⇓Culshaw Whittaker 1973). Similar also made an offshore borehole gravity core (⇓Darton data needed aid interpretation …