The Denver Tertiary formation

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Abstract
IT is the desire of the writer to present in the following article a succinct account of a: newly recognized Tertiary Formation, which, while of very limited geographical extent, yet possesses characteristics of special importance in several directions.The points of interest to be brought out may be grouped as follows:1.The Formation in question occupies a portion of the area about the city of Denver, Colorado, hitherto assigned to the Laramie Cretaceous.2. The conglomerates and sandstones of the Formation are chiefly made up of materials derived from a great variety of andesitic lavas of whose outpouring and destruction alike there is no other record now known.R. The celebrated fossil.plantbeds of Table Mountain, at Golden, belong to the Denver Formation,-hence the taxonomic value which has been given to this rich flora must be considered subject to revision.4. The vertebrate remains are of individual importance and also present some very remarkable associations, which are apparently in direct conflict with all past observations.
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openalex_W2315184543 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors C. W. Cross
Journal american journal of science
Year 1889
DOI
10.2475/ajs.s3-37.220.261
URL
https://doi.org/10.2475/ajs.s3-37.220.261
Keywords Keywords not found

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