The Quarterly journal of the Geological Society of London . of Porloce: Bat. By R. A. , Esq., , Eor. Sec. Contents. I. Greology of the The Forest-beds. 1. Introduction. 2. The ShiBgle. 3. Marine silt. 4. Surface of Plant-growths. 5. Blue Mud-deposit. 6. Submerged Angular detritus. III. Conclusion. § I. Geology oe the District. PoELOCK Bat is the seaward opening of a small vaUey; from Hurl-ston across to Gore Point is a distance of about three miles; itsextent inland is five miles. The valley is bounded on the North HiU (1030 ft.), Grabb


The Quarterly journal of the Geological Society of London . of Porloce: Bat. By R. A. , Esq., , Eor. Sec. Contents. I. Greology of the The Forest-beds. 1. Introduction. 2. The ShiBgle. 3. Marine silt. 4. Surface of Plant-growths. 5. Blue Mud-deposit. 6. Submerged Angular detritus. III. Conclusion. § I. Geology oe the District. PoELOCK Bat is the seaward opening of a small vaUey; from Hurl-ston across to Gore Point is a distance of about three miles; itsextent inland is five miles. The valley is bounded on the North HiU (1030 ft.), Grabbist (960 ft.) separating it from the VOL. XXII.—PART I. B PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [Nov. 8, Minehead valley; on the rise Dunkerry Beacon (] 678 ft.) andPorlock Hill; from its position, amidst some of the highest groundof the West of England, it presents some exquisite scenery, and hasmany points of geological interest. In common with the broad valley between the Quantocks and the SJcetch-majp of the neighhourhood of PorlocJc. BmLB. Submerged Forest-beds. Exmoor range, it affords the clearest evidences that the NorthDevon and Somerset ranges had acquired their elevations antece-dently to the accumulation of Red Conglomerate, as also of theGlacial conditions under which the materials of that Conglomeratewere brought together. Surmounting these is the best exhibitionto be met with in this county of the beds of the earliest Jurassic 1865.] GODWIN-AFSTEN POllLOCK FOKEST-BEDS. 3 period—Sinemurien* (those to which the names Ehsetic and Penarthhave been given). The range which bounds the Porlock valley on the extendsfrom the Foreland, by Countesbury to Culbone and Oare, and is thehighest land of Somerset. The mineral character of this great massis very distinct from that of the grey slaty rocks, with calcareousbands and an abundant though obscurely preserved marine fauna,which extend from Linton southwards in ascending order. Fromthe valley of the East Ly


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Keywords: ., bookcentury1800, bookdecade1840, booksubjectgeology, bookyear1845