Further reliques of Constance Naden : being Essays and tracts for our times / edited, with an naalytical and critical introduction, and notes, by George MMcCrie . t. It isabout 500 feet thick. (b) The AVoolhope, Wenlock, and Aymestry Limestonesand Shales follow in natural sequence, but frequentlyinverted in position. The place of every limestoneband is represented by a conspicuous ridge, the place ofevery shale by a valley. The Silurian beds have beenmuch excavated—they are crowded with fossils. Thecountry they originate is hilly and very picturesque,but not well suited to agriculture ; thus c
Further reliques of Constance Naden : being Essays and tracts for our times / edited, with an naalytical and critical introduction, and notes, by George MMcCrie . t. It isabout 500 feet thick. (b) The AVoolhope, Wenlock, and Aymestry Limestonesand Shales follow in natural sequence, but frequentlyinverted in position. The place of every limestoneband is represented by a conspicuous ridge, the place ofevery shale by a valley. The Silurian beds have beenmuch excavated—they are crowded with fossils. Thecountry they originate is hilly and very picturesque,but not well suited to agriculture ; thus contrastingwith the overlying Old Eed Sandstone, which formsa broad basin covered with orchards, and continuouswith the great plain of Central Herefordshire. (2) The Lickeys show the base of the Silurians. Barnt Green„, StationTrtns ,Sandstone j CambrianQuartette stone, r ? .v^\- ,.\. ^ Rubery ; Wo( X ^-v^X^X. \,iX,i\\ v X lWvX X^\v<*X MaYHiLL Sandstone ? Iw-ple faratntnit Wenlockfihal&s ,s7(,,/, sRubery : u/oolhope -,rC7 ? • • WOOLHOPE J[easures . imestdne ; Jrtas ! Sandstone S Cambrian Siluri SECTION THROUGH BARNT GREEN AND RUBERY. in. Silurian Cambrian Silurian SECTION THROUGH LOWER LICKEY. Oi) GEOLOGY OF THE BIRMINGHAM DISTRICT. As in all South Staffordshire examples, there is here astrategraphical break both above and below, so that thesystem is perfectly isolated ; the beds resting unconformablyon pre-Silurian sediments, and covered unconformably bypost-Devonian. (a) May-hill Sandstone, 200 feet thick, containing castsof P. oblongus, P. leus, Strephomena, Orthocerus, &c. (b) Woolhope shales and limestone. This limestone isgrey and somewhat crystalline, and its fossils are veryabundant. Among them are Atrypa hemispherica,A. reticularis, Ortlin, Illaenus, Encrinurus, &c. (3) Dudley and Sedgley district. 3L Ludlow SedgL61Y S/iiiI, i iLudlow ICoal liimestone] Con! V/ENLOCKWENLOCK Shah or Dudley . inLimestone, rzfc—- Dudley y- jLimestone ^^
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