Definitions
from The Century Dictionary.
- noun The name of certain modern volcanic rocks of rather varied and uncertain composition.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Geol.) An igneous rock consisting essentially of plagioclase and either leucite or nephelite, or both.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun geology An
igneous rock consisting essentially ofplagioclase and eitherleucite or nephelite, or both.
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
Ancient Greek
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Examples
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Trenches were cut perpendicular to the strike of lithogic layering in a strongly altered tephrite/skarn breccia sequence and sampled an area of outcrop approximately 180 x 180 meters in size.
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Trenches were cut perpendicular to the strike of lithogic layering in a strongly altered tephrite/skarn breccia sequence and sampled an area of outcrop approximately 180 x 180 meters in size.
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