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. 1911 Excerpt: ... was sunk on the hilltop 500 feet above and east of the tunnel's mouth. It is said that this shaft was in gravel for its entire depth, or 375 feet. As indicated above, however, all of the gravel below the 5,000-foot contour is believed to be out of place. This downthrown material is, however, not all gravel. 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. 1911 Excerpt: ... was sunk on the hilltop 500 feet above and east of the tunnel's mouth. It is said that this shaft was in gravel for its entire depth, or 375 feet. As indicated above, however, all of the gravel below the 5,000-foot contour is believed to be out of place. This downthrown material is, however, not all gravel. There is some andesitic breccia mixed with it. Numerous rhyolite bowlders and pebbles indicate an area of that rock in the vicinity, now eroded or covered over. The presence of these rhyolite pebbles would seem to indicate that a portion of this gravel is of later age than that of the Haskell Peak channel, which is capped with rhyolite. So far as could be made out, the Cedar Creek river gravel is in immediate contact on the south with the Pleistocene Mohawk Lake beds. The deposits of the old river channel just described, extending from north of the fortieth parallel near Little Grizzly Creek to the north end of the Mohawk Lake beds, are similar in being made up of gravel and coarse sand, with very little fine sediment. This may be taken as evidence that this river bed had a higher grade than those of the southwesterly system of the western half of the Downieville area. The next gravel area to the east of the high Sierra Buttes is on the steep granite slope south of Mohawk Valley, where it has an elevation of 7,000 or more feet. A large portion of this gravel mass has, however, gravitated down the slope, and some of it lies at an elevation of only 6,600 feet. Overlying the gravel is rhyolite. This channel is next exposed on the rhyolite-capped spur miles north of Haskell Peak, where there is a layer of fine loose sediment overlying the gravel. Among the pebbles in this deposit are many which appear to have been derived from the old tuffs of the Milton fo...
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Add this copy of The Tertiary Gravels of the Sierra Nevada of California to cart. $19.72, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
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Fine. Sewn binding. Cloth over boards. 284 p. In Stock. 100% Money Back Guarantee. Brand New, Perfect Condition, allow 4-14 business days for standard shipping. To Alaska, Hawaii, U.S. protectorate, P.O. box, and APO/FPO addresses allow 4-28 business days for Standard shipping. No expedited shipping. All orders placed with expedited shipping will be cancelled. Over 3, 000, 000 happy customers.
Add this copy of The Tertiary Gravels of the Sierra Nevada of California to cart. $31.12, new condition, Sold by GreatBookPrices rated 4.0 out of 5 stars, ships from Columbia, MD, UNITED STATES, published 2022 by Legare Street Press.
Choose your shipping method in Checkout. Costs may vary based on destination.
Seller's Description:
New. Sewn binding. Cloth over boards. 284 p. In Stock. 100% Money Back Guarantee. Brand New, Perfect Condition, allow 4-14 business days for standard shipping. To Alaska, Hawaii, U.S. protectorate, P.O. box, and APO/FPO addresses allow 4-28 business days for Standard shipping. No expedited shipping. All orders placed with expedited shipping will be cancelled. Over 3, 000, 000 happy customers.
