The Geological History of PlantsK. Paul, Trench, 1888 - 290 pagini |
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Pagina 144
... lignite , and bituminous coal : Cellulose Cork .. Lycopodium .. Peat ( Vaux ) . Brown coal ( Schröther ) . Lignite ( Vaux ) .... Bituminous coal ( Regnault ) . C24H20020 C24H 18700070 C24H19NO C24H1470010 C24H1470107 C24H1110610 ...
... lignite , and bituminous coal : Cellulose Cork .. Lycopodium .. Peat ( Vaux ) . Brown coal ( Schröther ) . Lignite ( Vaux ) .... Bituminous coal ( Regnault ) . C24H20020 C24H 18700070 C24H19NO C24H1470010 C24H1470107 C24H1110610 ...
Pagina 187
... has shown that much of the material of the great lignite beds of the Canadian Northwest consists of wood of Sequoia of both the modern types . In this period , also , we find the earliest THE FLORA OF THE EARLY MESOZOIC . 187.
... has shown that much of the material of the great lignite beds of the Canadian Northwest consists of wood of Sequoia of both the modern types . In this period , also , we find the earliest THE FLORA OF THE EARLY MESOZOIC . 187.
Pagina 208
... lignite , some of them eighteen feet in thickness . This was formerly known as the lignitic or lignite Ter- tiary , but more recently as the Laramie series . These beds were deposited in fresh or brackish water , in an internal sea or ...
... lignite , some of them eighteen feet in thickness . This was formerly known as the lignitic or lignite Ter- tiary , but more recently as the Laramie series . These beds were deposited in fresh or brackish water , in an internal sea or ...
Pagina 209
... lignite Tertiary , oc- curs , with the exception of a few outliers , in two large areas west of the 100th meridian , and separated from each other by a tract of older Cretaceous rocks , over which the Laramie beds may have extended ...
... lignite Tertiary , oc- curs , with the exception of a few outliers , in two large areas west of the 100th meridian , and separated from each other by a tract of older Cretaceous rocks , over which the Laramie beds may have extended ...
Pagina 215
... lignite series . In a bulletin of the United States Geological Sur- vey ( 1886 ) , Dr. White has established in the West the continuous stratigraphical succession of the Laramie and the Wahsatch Eocene , thus placing the Laramie con ...
... lignite series . In a bulletin of the United States Geological Sur- vey ( 1886 ) , Dr. White has established in the West the continuous stratigraphical succession of the Laramie and the Wahsatch Eocene , thus placing the Laramie con ...
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Termeni și expresii frecvente
acrogens aërial roots Algæ allied America appear arctic areoles bark beds belong bituminous branches Brongniart bundles Calamites Canada Carboniferous Caulopteris cells cellular character climate coal coal-formation conifers Cordaites cycads cylinder Dadoxylon Dawson Demy 8vo described Devonian diameter Eocene Erian Europe exogenous Fcap ferns flora formation forms fossil plants fronds fructification fruit Gaspé genera genus Geological Society graphite Greenland hemisphere Illustrations Journal Laramie Laurentian leaf-bases leaf-scars leaves Lepidodendron Lepidophloios Lesquereux limestone Lower Carboniferous Lycopods macrospores medullary rays Mesozoic Middle modern Nova Scotia occur outer Paleozoic period Permian petioles pines pinnate pinnules pith present probably Prof Psilophyton referred resemble Rhizocarps ribbed rocks sandstones scalariform scars Second Edition Sequoia shales Sigillaria Silurian similar Small crown 8vo species specimens Sphenophyllum Sporangites spore-cases spores sporocarps stems Sternbergia structure Tertiary thick Third Edition tion tissue tree-ferns trees trunks Upper Cretaceous vascular vegetable vols Williamson wood woody
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