| tufa | <chemical> A soft or porous stone formed by depositions from water, usually calcareous; called also calcareous tufa. A friable volcanic rock or conglomerate, formed of consolidated cinders, or scoria. Origin: It. Fufo soft, sandy stone, L. Tofus, tophus. Cf. Tofus, Toph, and Tophin. Source: Websters Dictionary (01 Mar 1998) |
|---|---|
| tufaceous | <chemical> Pertaining to tufa; consisting of, or resembling, tufa. Origin: Cf. It. Tufaceo, L. Tofaceus, tofacius. See Tufa. Source: Websters Dictionary (01 Mar 1998) |
| tufa | hard volcanic rock composed of compacted volcanic ash |
|---|---|
| tufa | a soft porous rock consisting of calcium carbonate deposited from springs rich in lime |
Á¦Ç°¸í |
ÆÇ¸Å»ç |
º¸ÇèÄÚµå | ¼ººÐ/ÇÔ·® | ±¸ºÐ/º¸Çè±Þ¿© |
|---|
Á¦Ç°¸í |
ÆÇ¸Å»ç |
º¸ÇèÄÚµå | ¼ººÐ/ÇÔ·® | ±¸ºÐ/º¸Çè±Þ¿© |
|---|