Calcareous tufa or travertine occurs in the valley of Matlock and elsewhere, the southern part of the county, from Matlock southward by Heage, Belper and Duffield to Derby.
Lyons), who died after 22 B.C. It is a circular structure of blocks of travertine 160 ft.
Calcareous tufa or travertine occurs in the valley of Matlock and elsewhere, and in some places is still being deposited by springs.
There is good travertine below Tivolj and elsewhere in Italy; the finest granite is found at Baveno.
The idea that an irregular circle of travertine blocks, found near the temple of Castor, formed part of the puteal is now abandoned.
It has been discovered that at the beginning of the Eocene the lake of Rilly occupied a vast area east of the present site of Paris; a water-course fell there in cascades, and Munier-Chalinas has reconstructed all the details of that singular locality; plants which loved moist places, such as Marchantia, Asplenium, the covered banks overshadowed by lindens, laurels, magnolias and palms; there also were found the vine and the ivy; mosses (Fontinalis) and Chara sheltered the crayfish (Astacus); insects and even flowers have left their delicate impressions in the travertine which formed the borders of this lake.
Both are outside the limits of the Campagna in the narrower sense; but similar tombs were found (though less accurately observed) in travertine quarries between Rome and Tivoli.