Transactions of the American Philosophical Society (Paperback)


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. 1881 Excerpt: ...passing Alta Mira and the head-waters of the Isabella River, crosses the lower spur on which is perched Mount Isabella de Torres, and descends to the plain near Puerto Plata. Its entire length, including the nine miles in the valley, is forty-one miles, and the thirty miles of mountain section is one of the most interesting in the chain. Near the base of the mountain in the canon of the Limon Creek it is evident that there has been some disturbance even where the surface configuration does not indicate it. While the shales in the valley arc usually undulated, dipping in all directions at angles of from 5 to 10; here they suddenly pitch northward as high as from 30 to 50, and bring to the surface the I desire particularly to call the attention of the reader to my section along this route and then to the section (Quart. Journ. Geol. Sue. 185;), p. 110, fiy. 3) of Mount Muiass which immediately adjoins the road or its east side, and which of necessity must have identically the same structure. Beds No. 10 and No. 1 of that section are in reality identical; Nos. 2 and 3 arc the equivalents of No. 9, which slmll be under instead of over No. 10; Nos. 4 and n equal No. 11; and the No. 10 on the north flank does not exist gray shales with intercalated strata of sandstone belonging to the lower part of the blue shale series. This upheaval is not extensive and the base of the outcrop near Piedra Gorda shows a marked curve, the beginning of a synclinal axis. Near Lima I found a dark gray conglomerate with broken fragments of shell very similar to the conglomerate bed of the Angostura of the Yaqui; but directly on commencing the ascent of the hill the brown shale of Guayubin appears, and dipping to the south extends to the top of the pass. Near the summit the higher hi...

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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. 1881 Excerpt: ...passing Alta Mira and the head-waters of the Isabella River, crosses the lower spur on which is perched Mount Isabella de Torres, and descends to the plain near Puerto Plata. Its entire length, including the nine miles in the valley, is forty-one miles, and the thirty miles of mountain section is one of the most interesting in the chain. Near the base of the mountain in the canon of the Limon Creek it is evident that there has been some disturbance even where the surface configuration does not indicate it. While the shales in the valley arc usually undulated, dipping in all directions at angles of from 5 to 10; here they suddenly pitch northward as high as from 30 to 50, and bring to the surface the I desire particularly to call the attention of the reader to my section along this route and then to the section (Quart. Journ. Geol. Sue. 185;), p. 110, fiy. 3) of Mount Muiass which immediately adjoins the road or its east side, and which of necessity must have identically the same structure. Beds No. 10 and No. 1 of that section are in reality identical; Nos. 2 and 3 arc the equivalents of No. 9, which slmll be under instead of over No. 10; Nos. 4 and n equal No. 11; and the No. 10 on the north flank does not exist gray shales with intercalated strata of sandstone belonging to the lower part of the blue shale series. This upheaval is not extensive and the base of the outcrop near Piedra Gorda shows a marked curve, the beginning of a synclinal axis. Near Lima I found a dark gray conglomerate with broken fragments of shell very similar to the conglomerate bed of the Angostura of the Yaqui; but directly on commencing the ascent of the hill the brown shale of Guayubin appears, and dipping to the south extends to the top of the pass. Near the summit the higher hi...

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Product Details

General

Imprint

Rarebooksclub.com

Country of origin

United States

Release date

March 2012

Availability

Supplier out of stock. If you add this item to your wish list we will let you know when it becomes available.

First published

March 2012

Authors

Dimensions

246 x 189 x 9mm (L x W x T)

Format

Paperback - Trade

Pages

162

ISBN-13

978-1-130-78500-5

Barcode

9781130785005

Categories

LSN

1-130-78500-9



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