If, as is probable, this trass was formed during the period of volcanic eruptions, it may have originated in the manner of the moya of the Andes.
The manner in which this trass conforms to the shape of the present valleys implies its comparatively modern origin, probably not dating farther back than the Pliocene Period.
Forests might be torn up by such a flood, and thus the occurrence of the numerous trunks of trees dispersed irregularly through the trass can be explained.
The use of trass in this manner as an adjunct to Portland cement has been advocated by W.
It is evident that this will form a pozzuolanic cement if a suitable silicious material such as trass is added to the cement.
They are mostly of volcanic origin, and include pumice, tufa, santorin earth, trass and pozzuolana itself.
Generally speaking, they are only of local importance, their cheapness depending largely on the nearness and abundance of some suitable volcanic deposit of the trass or tufa class.
He wished that the Trass boy would talk forever about destiny.
The phlegmatic Trass boy, with his moon face only expressing peasant parentage, calmly spoke some undeniably true words concerning destiny.
But the Trass boy finished his remarks about destiny in a very short time.
While I am on the subject of volcanic phenomena, I may as well add a word on the origin of the trass or tufa, which is so thickly spread over this country.
I next reached Burgbrohl and Wassenach, passing several of the trass mills, for the stone is in many places hard enough for mill-stones, and there is a considerable trade in them to Holland, and thence to England and other countries.
The idea of the trass having any connexion with a deluge, is, I believe, now exploded; and geologists have agreed that it is the actual substance ejected by the volcano, subsided into a firm paste.
You must not suppose the stream to be clear like the Aar, for it is as thick as pea-soup, and about the same colour, being in fact a river of trass in solution.
The tower is surrounded with caverns and halls, hollowed out of the trass stone, and profusely ornamented with fine oaks, pines, and spreading beech trees.
Tarras or Trass is found near Andernach, and is brought down the Rhine to Holland.
The Dutch are very attentive in ascertaining the quality of the trass before using it in building their dikes.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "trass" in a variety of sentences. We hope that you will now be able to make sentences using this word.
