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. 1901 Excerpt: ...the deep trenches cut through them into the underlying limestone and greenstone. The mountains in the distance are composed of Triassic shales, with igneous intrusions, which have protected the mountains from erosion. H. Doc. 546 1 Beyond the Nizina the formation is found capping the shale ridge between Young Creek and ...
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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. 1901 Excerpt: ...the deep trenches cut through them into the underlying limestone and greenstone. The mountains in the distance are composed of Triassic shales, with igneous intrusions, which have protected the mountains from erosion. H. Doc. 546 1 Beyond the Nizina the formation is found capping the shale ridge between Young Creek and the Chitina. Age of Kenn icott formation.--The age of the Kennicott formation has been definitely determined by Dr. T. W. Stanton, who has studied its fossils and proved their general correspondence with the fossils of the Knoxville formation of northwestern United States. This places the formation in the doubtful series lying at the top of the Jurassic or at the base of the Cretaceous. The following forms have been recognized: Inoceramus eximius Eichwald? Aucella pallasi Keyserling? Belemnites sp. Lytoeeras sp. Halobia oecidentalis Whiteaves? Hoplites sp. Rhynchonella sp. Olcostephanus? sp. Pecten sp. Gryphsea sp. Avicula sp. Sagenopteris sp. Concerning Inoceramux eximius. Dr. Stanton says: This form is represented by a single specimen collected on Chitty Creek. It may be distinct from Eichwald's species originally described from Turkusitun Bay in Cook Inlet and referred by him to the Neocomian. Eichwald described three other species--I. ambiguus, I. porredus, and I. lucifer--all belonging to one section of Inoceramvus, from the same horizon in Alaska. The present shell does not agree perfectly with any of the figures, but it is most nearly like I. eximius and probably comes from the same formation. Similar forms occur both in the Jurassic and in the Cretaceous, but the evidence of the other fossils from this part of Alaska favors the reference of the Kennicott formation to the Jurassic. Of the form referred with a question to Halobia occide...
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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Seller's Description:
PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
