单词 | geological horizon |
例句 | This new information on the sympatry of small and large azhdarchid species led us to look anew at other geological horizons that yield azhdarchid fossils. A new azhdarchid pterosaur: the view from Europe becomes ever more interesting 2013-01-31T14:15:08.667Z In this way what is called a “geological horizon,” or “zone,” is marked off, and its exact position in the series of formations is fixed. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 6 "Geodesy" to "Geometry" 2011-09-19T02:00:10.473Z It might be inferred, therefore, that from A to B we had a gradually ascending series—that as we paced over the outcrop we were stepping constantly from a lower to a higher geological horizon. Geology 2011-02-20T03:00:12.660Z It is now a well established fact that the distribution of the ore in this mine, and I believe in the entire Terlingua district, bears a definite relation to geological horizons. Fossil Ice Crystals An Instance of the Practical Value of "Pure Science" O. Heer, who examined the numerous plant remains from these beds, concluded that they belonged to the same geological horizon as the Molasse or Oligocene of Switzerland. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 3 "Borgia, Lucrezia" to "Bradford, John" In a more restricted sense it is used to connote certain thin layers of bony fragments, which occur upon well-defined geological horizons. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 2 "Bohemia" to "Borgia, Francis" The geological horizon of the Deccan trap cannot be precisely defined, but is now vaguely stated as 'the close of the cretaceous period'. Rambles and Recollections of an Indian Official In this exhibit the numerous materials found at the various geological horizons were displayed, the object of the exhibit being to show the great variety of geological formations represented in Maryland. Final Report of the Louisiana Purchase Exposition Commission Iii Cumberland and Westmorland it occurs largely in the New Red rocks, but at a lower geological horizon. The Project Gutenberg Encyclopedia Volume 1 of 28 It is noteworthy that a similar bone bed has been traced on the same geological horizon in Brunswick, Hanover and Franconia. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 2 "Bohemia" to "Borgia, Francis" |
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