File:GA Image 0169.jpg: Revision history

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15 September 2020

8 September 2020

  • curprev 12:4112:41, 8 September 2020Scotfot talk contribs 819 bytes +819 Long excursion to the Berwyns. July 31st to August 7th, 1908 - Geologists' Association excursion (Geologists' Association Circular No. 97. Session 1907–1908 p.2.) Figure 1.-Cefn-Y-Fedw Section. m. Aqueduct Grit, or Upper Sandstone. l. Upper Shale. k. Dee Bridge Sandstone. j. Lower Shale and Limestone. i. Middle Sandstone. h. Cherty Shale. g. Lower Sandstone. jr. Sandy Limestone. e. Upper Grey Limestone. d. Upper White Limestone. c. Lower White Limestone. b. Lower Brown Limestone. a. Old Re...