- Email: [email protected]
Field Meeting at Worms Heath
349 FIELD
MEETING
AT
WORMS
HEATH.
Saturday, 17th July, 1937. Report by the Director, G. ~L DAVIES, }LSc., F.G.S. PARTY of seventeen met at Woldingham Station and walked up the Hallehl valley to Nore Hill and \Vonns Heath, repeating the programme of April 20th, 1929. The report of that meeting, therefore, will serve for this, and it is only necessary to record changes in the sections now visible. The pits on the brow of Nore Hill, looking down the valley, have not been worked for some years. The lofty pinnacles of Chalk are still clearly visible, however, and samples of rotten chalk and clay-with-f1ints can be collected for washing. A large new pit has been opened immediately to the north of these and entered from the same point. It shows for the most part ferruginous Blackheath pebble-beds, in places cemented into conglomerate; but unrolled flints appear in places, indicating the proximity of a Chalk pinnacle, and the form of the workings has been modified to avoid them. The dew pond on Kare Hill yielded living examples of Planprbis corneus, reminiscent of fossils in the Oligocene of the Isle of Wight. The old pits along the S.W. side of the main road are now quite spoilt; the upper parts are densely wooded and the lower workings, described by Mr. Whitaker in his last paper, have been used for dumping material from sewer trenches and other rubbish. Even the old flint cottage at the entrance has been replaced by a brick villa. The shallow workings along the road to Ledgers showed an apparently cylindrical mass of mottled clay with almost vertical contacts with the pebbles. Presumably it is a relic of Reading Bedscapping a pinnacle of Chalk and surrounded by pipes into whiCh the Blackheath Beds have descended. After tea in a garden on the Warlingham road, NIr. A. L. Leach moved a vote of thanks to the director and the secretar\", Mrs:. S. Hall, and Mr. C. C. Fagg demonstrated the" Atlils of Croydon and District" which the Croydon Natural History and Scientific Society has begun to publish. The half-inch geological and contour maps of the area had already been utilised by the director in his demonstration of the dry valleys and outliers. Afterwards most of the party walked by field paths ac\Oss the Pliocene flat to Purley, having missed the train at Riddlesdown.
A
REFERENCES. \V .. 1919. Excursion to \Vorms Heath. PYoc. Ceol. Assoc., vol. xxix.. pp. 15.5-6. WHITAKER, W., and DAVIES. G. M. 1920. The Section at Worms Heath. Surrey. Quart. Joum. Geo!. Soc.. vol. lxxv.. pp. 7-3I. DAVIES, G. M. 1930. Field Meeting at \\Torms Heath. PrOf. G,'ol. Assoc., vol. xl., pp. 384-7.
WHITAKER,
PROC. GEOL.
Assoc., XLYIn ..
PART
4. 1937.
MEETING
AT
WORMS
HEATH.
Saturday, 17th July, 1937. Report by the Director, G. ~L DAVIES, }LSc., F.G.S. PARTY of seventeen met at Woldingham Station and walked up the Hallehl valley to Nore Hill and \Vonns Heath, repeating the programme of April 20th, 1929. The report of that meeting, therefore, will serve for this, and it is only necessary to record changes in the sections now visible. The pits on the brow of Nore Hill, looking down the valley, have not been worked for some years. The lofty pinnacles of Chalk are still clearly visible, however, and samples of rotten chalk and clay-with-f1ints can be collected for washing. A large new pit has been opened immediately to the north of these and entered from the same point. It shows for the most part ferruginous Blackheath pebble-beds, in places cemented into conglomerate; but unrolled flints appear in places, indicating the proximity of a Chalk pinnacle, and the form of the workings has been modified to avoid them. The dew pond on Kare Hill yielded living examples of Planprbis corneus, reminiscent of fossils in the Oligocene of the Isle of Wight. The old pits along the S.W. side of the main road are now quite spoilt; the upper parts are densely wooded and the lower workings, described by Mr. Whitaker in his last paper, have been used for dumping material from sewer trenches and other rubbish. Even the old flint cottage at the entrance has been replaced by a brick villa. The shallow workings along the road to Ledgers showed an apparently cylindrical mass of mottled clay with almost vertical contacts with the pebbles. Presumably it is a relic of Reading Bedscapping a pinnacle of Chalk and surrounded by pipes into whiCh the Blackheath Beds have descended. After tea in a garden on the Warlingham road, NIr. A. L. Leach moved a vote of thanks to the director and the secretar\", Mrs:. S. Hall, and Mr. C. C. Fagg demonstrated the" Atlils of Croydon and District" which the Croydon Natural History and Scientific Society has begun to publish. The half-inch geological and contour maps of the area had already been utilised by the director in his demonstration of the dry valleys and outliers. Afterwards most of the party walked by field paths ac\Oss the Pliocene flat to Purley, having missed the train at Riddlesdown.
A
REFERENCES. \V .. 1919. Excursion to \Vorms Heath. PYoc. Ceol. Assoc., vol. xxix.. pp. 15.5-6. WHITAKER, W., and DAVIES. G. M. 1920. The Section at Worms Heath. Surrey. Quart. Joum. Geo!. Soc.. vol. lxxv.. pp. 7-3I. DAVIES, G. M. 1930. Field Meeting at \\Torms Heath. PrOf. G,'ol. Assoc., vol. xl., pp. 384-7.
WHITAKER,
PROC. GEOL.
Assoc., XLYIn ..
PART
4. 1937.