Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The neighbouring peninsula of Lacuy is almost wholly formed of tufaceous deposits, connected probably in their origin with the volcanic hills just described.

From Geological Observations on South America by Darwin, Charles

From the midst of these vast tufaceous deposits, the tops of the hills, composed of trachyte, a rock which forms all the loftiest eminences, here and there emerge....

From Round About the Carpathians by Crosse, Andrew F.

Some masses of tufaceous deposit, produced by this spring, have an oolitic texture.

From Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology by Lyell, Charles, Sir

They believed the human bones to have been enveloped by natural causes in the tufaceous matrix in which we now see them.

From The Antiquity of Man by Lyell, Charles, Sir

The tufaceous alluvium called trass, which has covered large areas in the Eifel, and choked up some valleys now partially re-excavated, is unstratified.

From The Student's Elements of Geology by Lyell, Charles, Sir