Nigeria and its tin fieldsCalvert, Albert Frederick
History
Nigeria and its tin fields
Calvert, Albert Frederick
Tin mines and mining -- Nigeria
_Nafuta Dam Site._—In proceeding from Juga to Nafuta one traverses the
basin of this proposed dam. As a site its position would be hard to beat.
It covers some 356 acres, which narrows down to a steep rocky neck,
through which the waters debouch on to the Nafuta flat. The sides of the
gorge rise in an abrupt slope, and are composed of granite. It forms an
ideal situation for a retaining wall which, if reared 100 feet, would
throw back 326 million cubic feet of water. This quantity of water would
develop approximately 550 horse-power for 370 days of 12 hours, using
1,220,000 cubic feet per day, and allowing 525,000 cubic feet for daily
evaporation and soakage losses.
At present the dam area is enclosed in the Nafuta _exclusive area_,
which expires at Christmas. I propose therefore to take it up as an
agricultural lease, which I believe can be secured at annual rental of
1s. per acre.
The dam is a necessity for the operation of Nafuta, though, of course
once established, it could generate high tension electricity for
transmission to Juga and South Juga, and operate them as well.
A masonry retaining wall could, I think, be most cheaply built, as the
stone exists on the site. It would be the installation of a quarrying
plant of say half-dozen rock drills and channelling machines, also a
small aerial line up the bed of the dam for handling the stone, and a
“flying fox” gear across the gorge for handling all the stone in the
retaining wall.
In some places at the lower end the water is lost to sight 30 feet or
more beneath the huge granite boulders that lie in the gorge.
GONGOLA SYNDICATE, LTD.
_Capital Authorised._—£9000. Issued and fully paid, £6607.
_Directors._—Mr. S. R. Bastard (Chairman), Mr. C. G. Lush, Mr.
Walter Wethered.
_Secretary._—Mr. Newman M. Ogle.
_Registered Offices._—Friars House, New Broad Street, London,
E.C.
This syndicate owns the following properties in the Bauchi Province:—
_Rein._—An exclusive licence to prospect an area of 4½ square miles near
the towns of Rein and Forum.
_South Bukeru._—An exclusive licence to prospect an area of 3 square
miles south of Bukeru, and sold to the company of that name.
_Shen._—A mining licence to work an area of 24 acres on the left bank of
the Shen stream.
The Rein property is situated on the south-eastern side of the Bauchi
Tin Fields, between the pagan towns of Forum and Rein. The area encloses
about six miles of a stream flowing in the northerly direction from Rein
to Forum, where it junctions with a system of rivers on which the Ribon,
Bisichi, Doss, and other properties are situated.
Public-domain text, read in full here on John Shaqi.
Reviews
Reviews
No reviews yet
Be the first to share your thoughts on this work.
Join the Discussion
Join the discussion
Sign in to leave a comment or review.
Sign InorCreate an account