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单词 bird's eye limestone
释义

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bird's eye limestone
bird's eye limestone n. now chiefly historical a kind of fine-grained limestone occurring esp. in New York State which displays small round markings or structures due to the presence of fossils.
ΚΠ
1838 T. A. Conrad in Communication Geol. Surv. State 119 in Docs. Assembly State N.-Y. (61st Session, Doc. No. 200) IV Orhostoma communis [read Orthostoma].—Common in the upper layer of the birds-eye limestone.
1921 A. W. Grabau Textbk. Geol. II. xxxiii. 280 On the bedding planes of some of the strata of this limestone are shown the cross-sections of many vertical tubes filled with calcite and from the general appearance thus produced, the rock was formerly called Bird's-eye limestone.
2001 S. Reigler Kentucky 282/2 Imposing 1905 bird's-eye limestone home built for a U.S. senator from Kentucky.
extracted from bird's eyeadj.n.
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