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== Excursion to Worm's Heath. Saturday, April 2nd. 1910 ==
== Excursion to Worm's Heath. Saturday, April 2nd. 1910. (Transcription of GA Circular 118. Session 1909–1910. p.2 ==


'''Director'''W. WHITAKER, F.R.S., F.G.S.
'''Director'''W. WHITAKER, F.R.S., F.G.S.

Revision as of 21:20, 25 September 2020

Geologists' Association Circular 118. Session 1909–1910. p.2

Excursion to Worm's Heath. Saturday, April 2nd. 1910. (Transcription of GA Circular 118. Session 1909–1910. p.2

DirectorW. WHITAKER, F.R.S., F.G.S.

Excursion Secretary A. L. LEACH, Giltar, Shrewsbury Lane, Plumstead, S.E.

Train, S.E.R., London Bridge, Low Level Station, 2.13, to Woldingham. To obtain cheap return tickets, price 1s. 10d., meet Mr. Leach in booking office not later than 1.55 p.m.

Walk a little northward to within sight of Bughill Farm (the highest place at which the Bourne rose in February, 1904), the eastward, along a good specimen of a dry Chalk-valley, and up its northern slope to Slines Green and Worm's Heath. Here an extension of one of the large pits in the Blackheath pebble-beds has laid open a mass of firm chalk, which rises up irregularly nearly to the surface of the ground, whilst elsewhere the pebble-beds go down to the bottom of the pit, without their base being reached,

In the well-marked pipes there is an irregular sheet of loam, and clay with flints, and sometimes sand, between the pebble-beds and the Chalk. In parts there is some angular flint-gravel above the pebble-beds, at a height of nearly 750 feet.

The Blackheath Beds here rest on the Chalk, only a very slight trace of mottled clay (Reading Beds) having been found at one spot, whilst no Thanet Sand has been found anywhere. However, with the extension of the pits, fresh things may turn up. This overstep of the Blackheath Beds, over the Reading Beds, the Thanet Sand, and great part of the Upper Chalk, is gradual, from the main mass of the Tertiaries on the north, and apparently general over the district.

Return along the hill-top westward to Warlingham. Tea at the White Lion, and thence down to Upper Warlingham Station. Retum train, 6.53; due at London Bridge 7.23 p.m.

Walking distance, six miles.

The sections at Worm's Heath are well worth photographing.

REFERENCES.

Geol. Survey Map, Sheet 6, Drift.

Ordnance Survey Sheet 286.

1905. "Excursion to Woldingham," Proc. Geol. Assoc., vol. xix., p. 133.

1909. H. B. WOODWARD.—"Geology of the London District," Mem. Geol. Survey. Price 1s.

Images

List of photographs

Excursion to Worms Heath, April 2nd 1910

Page 5 P805349 Large pit abutting on the southern side of the road in the pebble beds of the Blackheath series resting on Chalk, a huge mass is seen rising up suddenly from the pebble beds to a few feet of the surface. Excursion to Worms Heath, April 2nd 1910.
Page 5 P805350 Large pit abutting on the southern side of the road in the pebble beds of the Blackheath series resting on Chalk, a huge mass is seen rising up suddenly from the pebble beds to a few feet of the surface. Excursion to Worms Heath, April 2nd 1910.
Page 5 P805351 The newer pit on the northern side of the road by the eastern point of Worms Heath, showing chalk below the pebble beds. Excursion to Worms Heath, April 2nd 1910.
Page 5 P805352 The newer pit on the northern side of the road by the eastern point of Worms Heath, showing chalk below the pebble beds. Excursion to Worms Heath, April 2nd 1910.