Written contribution from Dr P. T. WALSHIn a paper to the Societyin 1965, I drew attention to the geomorphological significanceof the Ballydeenlea Senonian Chalk outlier at its altitude ofabout 120 m. A.S.L. It was suggested that the Chalk mass representeda karstic subsidence of sea-floor deposits, the subsidence beingof the order of perhaps 100 m, thus placing the sub-SenonianPalaeozoic surface at the head of Dingle Bay at more than 480m, and possibly as much as 800 m below the supposed ‘summitlevel surface’ in that part of Kerry. In discussing whetheror not the Dingle Bay area could thus be interpreted essentiallyas an exhumed sub-Senonian landscape, I further drew attentionto the significance of the minimum scale and style of post-Cretaceous synclinal folding which would be necessary for theChalk also to cover the adjacent ranges of the Iveragh and Dinglepeninsulas. It was demonstrated that the post-Cretaceous structuralelevation of the Slieve Mish Anticline to the north of DingleBay would necessarily be about one-half of that achieved bythe pre-Senonian movements on the base of the Carboniferous(Walsh I966 , Fig. 6). The writer thus welcomes the structuralpicture of the Cretaceous and post-Cretaceous rocks off thesouthern Irish coast that has emerged from geophysical evidenceas providing further indirect evidence that it is unlikely thatstrong post-Cretaceous folding has affected the Munster fold-arc.However, it would be desirable to await further detailed reportson marine
...
This 250-word extract was created in the absence of an abstract.
