Unfortunately for its agricultural character, the surface has been covered with a foreign diluvium of red clay filled with chips of horstone, chert and broken quartz, which make the soil hard and compact.
This diluvium is, in truth, of the same era as the wide spread stream of like kind, which has been deposited over the metalliferous region of Missouri.
The heavy deposit of diluvium conceals the surface.
Unfortunately for its agricultural character, the surface has been covered with a foreign diluvium of red clay filled with chips of hornstone, chert and broken quartz, which make the soil hard and compact.
Mr. Darwin speaks of the tails of diluvium in Scotland extending from the protected side of a hill, of which the opposite side, facing the direction from which the ice came, is marked by grooves and striae (loc.
By the way, how do you and Buckland account for the "tails" of diluviumin Scotland?
Penck of Leipzig writes to the effect that it was the reading of Great Ice Age that first opened his eyes to the meaning of the Diluvium of Northern Germany.
When these mountains arose, the diluvium itself must have already been deposited.
The diluvium has also been found in caverns lying upon an ancient stalagmite, and covered again with a new formation of that modification of carbonate of lime.
The lowest formation in the cavern resembles the "diluvium gris" of Paris, being composed of granitic materials, and like it derived chiefly from the waste of the crystalline rocks of the Morvan.
These blocks are peculiarly abundant in the lower drift commonly called the "diluvium gris.
The shelly boulder-clays in various parts of our islands, and the similar occurrence of marine and brackish-water shells in and underneath the Diluvium of north Germany, etc.
The upper diluvium of those regions is the bottom-moraine of the so-called great Baltic glacier.
De Geer and others have shown that while the great Baltic glacier was accumulating the upper diluvium of North Germany, etc.
In those regions, however, a considerable portion of the diluvium consists, as we shall see presently, of water-formed beds.
One of the latest discoveries of interglacial remains is that of two peat-beds lying between the lower and upper diluvium near Gruenenthal in Holstein.
The true equivalent in this country of the upper diluvium is not our upper boulder-clay, but the great valley-moraines of our mountain-regions.
It is obvious that the upper and lower glacial deposits of central Russia cannot be the equivalents of the upper and lower diluvium of the Baltic coast-lands.
In short, it is obvious that the upper and lower glacial accumulations near Moscow must be on the horizon of the lower diluvium of north Germany.
The Alluvium was distinguished from Diluvium by the fact that its mammalian fossils were representatives of still living forms, but it is a matter of great difficulty to separate these two divisions in practice.
Connected with the diluvium is the history of ossiferous caverns, of which specimens singly exist at Kirkdale in Yorkshire, Gailenreuth in Franconia, and other places.
All that we can legitimately infer from the diluvium is, that the northern parts of Europe and America were then under the sea, and that a strong current set over them.
Arles is planted upon a nodule of limestone rock that rises out of the diluvium of rolled stones.
But, when the diluvium ceased, and the rivers Rhone and Durance assumed approximately their present character, a change of procedure took place.
We had a few capital shots: the fragments flew in every direction; and an immense mass of the diluvium came toppling down, bearing with it two dead birds, that in a recent storm had crept into one of the deeper fissures, to die in the shelter.
Several large stones came rolling down from the diluvium in the course of the afternoon.
