| 单词 | santorin earth |
| 释义 | > as lemmasSantorin earth In full Santorin earth. A natural volcanic ash, similar to pozzolana, found on the island of Thira in the Cyclades. ΘΚΠ the world > the earth > structure of the earth > constituent materials > ejected volcanic material > [noun] > ash ash1667 pozzolana1684 volcanic ash1776 trinacrite1854 Santorin earth1868 pumicite1916 1868 H. Watts Dict. Chem. V. 191 Santorin, an argillaceous mineral, occurring on the island of Santorin, which yields an excellent cement. 1876 Minutes Proc. Inst. Civil Engineers 45 291 For hydraulic works on the Mediterranean coast Santorin earth recommends itself through facility of excavation and lading and economical transport at sea. 1951 Ladoo & Myers Non-Metallic Minerals (ed. 2) 407 Santorini or Santorin earth is a variety of pumice mined on Santorin Island (Greece), used in making pozzuolana cement. 1971 Materials & Technol. II. ii. 106 Cements ground together with siliceous materials other than pozzolan—such as santorin earth (Greece), trass..and diatomaceous earth (USA)—are also named pozzolan cement. < as lemmas |
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