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" Pensylvania, with some interruption, all the way to the waters of the Tombigbee, accompanied by the usual attendants, slaty clay and freestone, with vegetable impressions, &c. ; but, in no instance that I have seen or heard of, covered by, or alternating... "
Observations on the Geology of the United States of America: With Some ... - Página 60
por William Maclure - 1817 - 127 páginas
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The Edinburgh Review: Or Critical Journal, Volumen30

1818
...accompanied by the usu,al attendants, slaty clay and freestone, with vegetable impressions, &c.-, but, in TH> instance that I have seen or heard of, covered by, or alternating with, any rock retrniblmu basalt; or indued any ut' those called the newest rloetz trap formation. ' The limestone...
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Transactions of the American Philosophical Society, Volumen6

1809
...impressions &c. but in no instance that I have seen or heard of, is it covered or does it alternate with any rock resembling basalt, or indeed any of those called the newest Jtcetz trap tor mat ion. Along the SE boundary, not far from the transition, a rocksalt and gypsum...
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THE EDINBURGH REVIEW OF CRITICAL JOURNAL

DAVID WILLISON - 1818
...Tombigbee, accompanied by the usual attendants, slaty clay and freestone, with vegetable impressions, &c. ; but, in no instance that I have seen or heard of,...scattered in all forms and directions, often resembling the limestone in colour, in which case it is with difficulty they can be distinguished ; they abound...
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A Gazetteer of the State of Pennsylvania: Part First ... General Description ...

Thomas Francis Gordon - 1832 - 563 páginas
...the usual attendants, slaty clay, and freestone with vegetable impressions, &c. ; but in no instance covered by, or alternating with, any rock, resembling basalt, or indeed any of those called the newest floctz trap formation." " Along the south-east boundaries not far from the transition, a rock salt,...
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The Geographical Catechism of Pennsylvania: And the Western States; Designed ...

Israel Daniel Rupp - 1837 - 384 páginas
...slaty clay, and freestone with vegetable impressions, &c, but in no instance covered by, or alternative with, any rock, resembling basalt, or indeed any of those called the newest floetz trap formation." " Along the southeast boundaries not far from the transition, a rock salt, and gypsum formation has...
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A Book of the United States: Exhibiting Its Geography, Divisions ...

Grenville Mellen - 1839 - 824 páginas
...accompanied by slaty clay and freestone with vegetable impressions ; but in no instance yet ascertained, covered by or a-lternating with any rock resembling...of those called the newest floetz trap formation. A grand peculiarity of this secondary region is the uniform, horizontal direction of the strata. We...
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Transactions, American Philosophical Society (Old Series, vol. 5, 1802)

...impressions &c. but in no instance that I have seen or heard of, is it covered or does it alternate with any rock resembling basalt, or indeed any of those called the newest Jfatz trap /or motion. Along the SE boundary, not far from the transition, a rocksalt and gypsum formation...
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