CAB129-36 — Page 56

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3.4.

FLOKE

in the textile industry, and in pharmacy; also in the manufacture of pencils increasegats zise fand zefficiency in oil refining. Page 57 of 662 of mov and pigments and as a catalyst. Activation of fullers' earth has enormously

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obiva 139. (a) Nutfield, Surrey. The deposit outcrops between Redhill and Nutfield and averages 10 ft. thickness in the quarries now being worked. Geological information indicates that the fullers earth, occurs as a bed dipping generally to the north. The Fullers' Earth Union Ltd. have carried out extensive boring which indicates that the fullers earth bed becomes thin and deep towards the north and east. Although the Company's output from this deposit exceeds 40,000 tons per annum the proved reserves are equivalent to many years supply of the raw materialou This is on the assumption that the area underlain by these reserves will all be available for mineral working. Owing to the increasing depth, ultimate extensions northwards may involve underground working, un sti ärtog oldalia mu

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(b) Somerset (and Gloucestershire). The occurrence is situated in the parish of Combe Hay, south of Bath where it is being worked underground from an adit. The thickness averages 6 ft. and the deposit underlies an area of approximately 270 acres or the equivalent of over 3 million tons of crude earth. Of this some 700,000 tons have been extracted. The annual output of the Fullers Earth Union Ltd. has risen from a little over 2,000 tons in 1940 to over 17,000 tons in 1948 from this districts bin A bx 100 & 419 W Avd

The presence of about 18 per cent. of calcium carbonate in the fullers' earth of this area renders it uneconomic to activate by the treatment used at Redhill. The product is, therefore, mostly dried and treated for use in oil-well drilling and as a foundry sand compound.

engini sibongos civil Unimportant occurrences of fullers' earth have been noted in the shaft of Priston Colliery near Chipping Sodbury and at Wick. Small attempts to work these in the past have been

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(c) Bedfordshire, Woburn. The deposit of fullers' earth in an are adjacent to the villages of Woburn and Aspley Guise is well-known, and was worked until about the middle of the last century. The production was sold chiefly for fulling. The limits of this occurrence have been fairly accurately determined from records of well sections and from other sources, and it would appear that it was lenticular and thin and has probably been largely worked out. It is suggested, however, that a detailed survey might disclose areas where additional deposits may occur and which could be proved by shallow boreholes.

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(d) Kent, Maidstone. An occurrence of fullers' earth is known in the vicinity of Maidstone and was previously worked on a small scale N.E. of Vintners. Although little information is available as to the extent and quality of the mineral, it is not thought to be of economic importance

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(c) Sussex. General small occurrences have been recorded, but little information is available, and with the exception of that at Baynards, worked by Messrs. F. W. Berk & Co. Ltd., whose rights cover 50 acres said to contain 500,000 tons, they are not thought to be of any economic importance.or

They (f) Isle of Man. The occurrence of a clay said to have the properties of fullers' earth is recorded by the Geological Survey, the locality being Glen Wyllin, banned.