Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun Plural form of
greensand .
Etymologies
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Examples
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As a result of multiple sea-level changes between the last 135 to 5 million years before present, the Atlantic Coastal Plain became overlain with layers of unconsolidated, permeable silts, sands, clays, greensands, and marls.
Jacques Cousteau National Estuarine Research Reserve, New Jersey 2007
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They do not occur in the oldest sedimentary rocks, but as we ascend to the more recent geological epochs, they increase in abundance, until, in the greensands and other recent formations, whole beds of coprolites and other organic remains are met with.
Elements of Agricultural Chemistry Thomas Anderson
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