. The Quarterly journal of the Geological Society of London. and Oolite (with Ammonites and Trigonice): double dip.—One to W. at the high angle of 40°, and the other to at 20°. The valley in parts cut down to the Portland sand. 2. The Purbeck and Portland formations are here brought intojuxtaposition, as shown in the diagram, fig. 2. 3. Crest of hill.—Pwr^ec^-: dip to at 20°. Upway Valleyapparently cut down to the Portland oolite. 4. Crest of hiW.—Furbeck : dip to N. by E. at 20°. * Quart. Journ. Geol. Soc. vol. iv. p. 245, and vol. v. p. See also Quart. Journ. Geol.


. The Quarterly journal of the Geological Society of London. and Oolite (with Ammonites and Trigonice): double dip.—One to W. at the high angle of 40°, and the other to at 20°. The valley in parts cut down to the Portland sand. 2. The Purbeck and Portland formations are here brought intojuxtaposition, as shown in the diagram, fig. 2. 3. Crest of hill.—Pwr^ec^-: dip to at 20°. Upway Valleyapparently cut down to the Portland oolite. 4. Crest of hiW.—Furbeck : dip to N. by E. at 20°. * Quart. Journ. Geol. Soc. vol. iv. p. 245, and vol. v. p. See also Quart. Journ. Geol. Soc. vol. iv. p. Quart. Journ. Geol. Soc. vol. v. p. 318. § The numbers refer to the sections marked on the ground-plan of the district,given in the Map, fig. 1. 1852.] WESTON ON THE UPWAY VALLEY. Ill 5. At a lower level than sections 3 and 4.—Portland oolite : at 20°. 6. At a lower level than No. 5, at Gorton Gorge.—Base of Port-land oolite: dip to N. by E. at 12°. Portland sand is exposedbelow. fig. Si. 09 C»2 I- cj .. .2 «!<u . ?si ^ .illo o CS 13 cd .A<u ^^ 3 -^ 2 2 6 CO s (N O o ZL CO ^ 2 a o 1-** ^ 5s a o o 11 W CD H 3 o 2 - o c«2^ •;« ci. .2-^, cj ^ o •*^ i-h CQ ^Portisham. H ^ H | S l^i o W P c« IPh 7. Coryates Gorge.—Strata denuded to the commencement of theKimmeridge clay. No Purbeck appears on the crest of the hill forsome distance. Portland oolite : dip to N. at 10°. 112 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [Jan. 21, 8. Crest of hill.—Purbeck: dip to W. at 5°. 9. Crest of hilh—Purbeck (2 quarries) : dip to , 5°-10°. Fig. 2.—The Fault seen at Sect, 2. Purbeck.


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Keywords: ., bookcentury1800, bookdecade1840, booksubjectgeology, bookyear1845