This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1908 Excerpt: ... surface until Cotham is reached, and here again is soon overlain by alluvium, its next emergence being S. of the Staunton Grange fault. R. L. S. GENERAL ACCOUNT. Although the Rhsetic beds crop out in a very decided escarpment which is continuous and easily traced throughout the greater part of their course, there is ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1908 Excerpt: ... surface until Cotham is reached, and here again is soon overlain by alluvium, its next emergence being S. of the Staunton Grange fault. R. L. S. GENERAL ACCOUNT. Although the Rhsetic beds crop out in a very decided escarpment which is continuous and easily traced throughout the greater part of their course, there is at present only one clear section in which they are exposed. We have therefore been able to glean very little new information regarding the series, and are compelled to depend largely upon the descriptions of previous writers, who had the opportunity of examining the sections, now practically obliterated, in the several railway cuttings which have been excavated across the escarpment in this district. As previously mentioned, in the classification originally adopted the Rhsetic Series was held to include the belt of "Tea-green Marl" which is now regarded as forming the uppermost portion of the Keuper Marl (see p. 41); and as this Tea-green Marl passes insensibly into the underlying red marls, the Rhsetic beds were supposed to be strictly conformable to the Keuper. But it is now recognised that the Rhsetic Series begins with the overlying black "Avicula-contoita shales "; arid between these shales and the marl there is everywhere in this district a sharp line of division.2 Whether this division marks an actual unconformity is, however, somewhat doubtful, for although traces of slight erosion have been noticed in places beneath the black shales, there is no evidence of noteworthy denudation of the Keuper beneath the base of the Rhsetic, nor of any perceptible difference of dip between the two formations. It has, indeed, been stated3 by Messrs. A. J. Jukes-Browne and W. H. Dalton that the Rhsetic "is separated from the Keu...
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Add this copy of The Geology of the Country Between Newark and to cart. $73.29, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2015 by Palala Press.