单词 | septariiform |
释义 | † septariiformadj. Geology. Obsolete. In the terminology of J. W. Dawson: designating serpentine (serpentine n. 3) having a structure subdivided by mineral-filled partitions. ΘΚΠ the world > the earth > structure of the earth > constituent materials > stone > a stone > [adjective] > concretionary or modular > septarium septarian1829 septariate1829 septariiform1867 1867 J. W. Dawson in Q. Jrnl. Geol. Soc. 23 i. 260 (note) I use the term ‘septariiform’ to denote the curved [1875 curdled] appearance so often presented by the Laurentian serpentine. 1888 J. W. Dawson On Specimens Eozoon Canadense 45 Specimens from Long Lake, in the collection of the Geological Survey of Canada, exhibit white crystalline limestone with light-green compact or septariiform serpentine. This entry has been updated (OED Third Edition, September 2020). < |
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