The Quarterly journal of the Geological Society of London . Lower Oolite. Fig. 5.—Section of Pipes in the Boulder-clay, at Hardingham, a. Loamy Warp-drift. b. Boulder-clay, r. The same materials as the Boulder-clay, viz. chalk and clay, butcontaining irregular seams of sand and gravel. 1854.] TRIMMER ON SAND-PIPES. 237 Fig. 5. A section of the Warp-drift and Boulder-clay near Hard-ingham, Norfolk. Here the depth of the furrows and pipes filledwith Warp-drift varies from 3 to 6 feet; one of the pipes, however,extending to the depth of 9 feet. If all the projecting points ofBoulder-clay
The Quarterly journal of the Geological Society of London . Lower Oolite. Fig. 5.—Section of Pipes in the Boulder-clay, at Hardingham, a. Loamy Warp-drift. b. Boulder-clay, r. The same materials as the Boulder-clay, viz. chalk and clay, butcontaining irregular seams of sand and gravel. 1854.] TRIMMER ON SAND-PIPES. 237 Fig. 5. A section of the Warp-drift and Boulder-clay near Hard-ingham, Norfolk. Here the depth of the furrows and pipes filledwith Warp-drift varies from 3 to 6 feet; one of the pipes, however,extending to the depth of 9 feet. If all the projecting points ofBoulder-clay were removed to a level with the horizontal dotted line,it would give to the soil a regular depth of 3 feet. Fig. 6. A section of the Warp-drift and Boulder-clay near Lang-ham, Norfolk. In this case the greatest indentation is 3 feet deep,the depth of the Warp-drift varying, in the space of a few yards,from less than 6 inches to 3 feet. Fig. 6.—Section of Pipes in Boulder-clay, at Langham, Norfolk.
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Keywords: ., bookcentury1800, bookdecade1840, booksubjectgeology, bookyear1845
