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Report on County Resources Volume 2 download torrent

Report on County Resources Volume 2 download torrent

Report on County Resources Volume 2.cMines Maryland Dept of Geology
Report on County Resources Volume 2
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Author: Mines Maryland Dept of Geology
Number of Pages: 94 pages
Published Date: 06 Mar 2012
Publisher: Rarebooksclub.com
Publication Country: Miami Fl, United States
Language: English
Format: PDF
ISBN: 9781130735291
File size: 45 Mb
Download Link: Report on County Resources Volume 2
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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. 1902 Excerpt: ...which is the next succeeding formation of the Potomac group, but also by the sands and gravels of the Lafayette formation and the formations of the Columbia group. The Patapsco formation occupies a belt extending across Cecil county, from the Delaware line to the Susquehanna river and the head of the Chesapeake Bay, included roughly between the tracks of the Baltimore and Ohio Railroad on the north and the north shore of Elk River on the south. Throughout the northern portion of this belt the formation is exposed on the hillsides, and throughout the southern portion it is found at a lower level in the sides and bottoms of deep ravines. Throughout the northern half of the belt it overlies the Patuxent formation; throughout the southern half it is in turn overlain by the Raritan. Exceptions to this general rule are found, however, in some outlying areas, such as Egg Hill and localities near Foys Hill and Blythedale, where isolated portions of the Patapsco not only rest on the Patuxent, but are also largely covered over with Raritan. The materials of the Patapsco are fully as varied and irregularly developed as those of the Patuxent. They consist of variegated clays and stratified and cross-bedded sandstones, gravel and conglomerate, but the formation as a whole is argillaceous and carries a large proportion of the clays of this county. Its sands, like those of the Patuxent formation, are water-bearing. The strike of the formation is from northeast to southwest, and the beds dip to the southeast at the rate of about 40 feet per mile. The thickness of the formation has been estimated at Turkey Point to be about 360 feet and at Chesapeake City as 200 feet. The Baltimore and Ohio Railroad cut at Foys Hill exposes the following section: Formation. Feet. Patapsco. ...

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