| 释义 |
Arenig|əˈreɪnɪg|
The name of a mountain in Merionethshire, Wales, applied attrib., esp. to a series of rocks of the Lower Ordovician age. Hence Areˈnigian a., of or pertaining to this series.
1854A. Sedgwick in Phil. Mag. VIII. 362 Festiniog group (Middle Cambrian)..Arenig slates and porphyries, &c. 1865Lyell Elem. Geol. xxvii. 564 This Arenig group may therefore be conveniently regarded as the base of the great Silurian system. 1879Encycl. Brit. X. 331/2 Arenig or Stiper Stone Group. These rocks consist of dark slates, shales, flags, and bands of sandstone. 1929Evans & Stubblefield Handbk. Geol. Gt. Brit. iii. 59 The lowest part of the Ordovician has been also called the Arenig or Arenigian Series. |