Excerpt from On the Mesozoic Rocks, in Some of the Coal Explorations in Kent
The explorations for coal in Kent by means of borings and shafts have provided exceptional opportunities of examining the concealed Mesozoic rocks of the County. Accounts of the Coal Measures, so far as those strata have been penetrated, have been published from time to time by geologists officially connected with the exploring companies, but the published descriptions of the overlying strata have been meagre and inadequate.
In view of the additions which were likely to be made to our knowledge of the range and character of the Mesozoic rocks under the south-east of England and the importance of that knowledge as bearing on the prospects of future explorations, it was determined to take advantage of the permission which had been accorded to us by some of the exploring companies to make full examination of the material raised to the surface, on the understanding that our investigations were not extended into the Coal Measures. The present volume is the outcome of that determination.
The investigation was actually commenced in 1897, when Mr. Lamplugh was engaged in collecting material for a memoir on the Lower Cretaceous rocks of England. Subsequently the services of Dr. Kitchin were called in to continue the examination of the strata at Dover as the sinking of the shaft there proceeded, and to pass in critical review the whole of the great collection of fossils which had been made there and at the other explorations.
Besides the sections described in this Memoir several other shafts and boreholes have been made or begun in Kent, but for various reasons it became necessary to confine the published account almost wholly to the four localities, Dover, Brabourne, Pluckley and Penshurst. For the permission to publish the information obtained from these localities we are indebted to Kent Collieries Ltd. We desire also to acknowledge the great assistance which has been rendered us by the engineers formerly in charge of the Dover sinkings, Mr. A. Reid, M.Inst.C.E., F.G.S., and Mr. J. Newton.
The volume falls naturally into two parts, a stratigraphical part (with a historical introduction) by Mr. Lamplugh and a pal?ontological part by Dr. Kitchin. The stratigraphical part was written more than three years ago, before certain information relating to the Mesozoic rocks of other Kentish borings came to hand. Some of this information is briefly referred to in the pal?ontological part, by permission of Dr. Malcolm Burr.
The results of the investigation have proved to be of much interest and no little economic importance. The Lower Cretaceous rocks in their underground development show considerable variations from their development in their neighbouring outcrops.
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