On a Champlain (?) deposit of Diatomaceae belonging to the littoral plain

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1893
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Abstract
a paper by me before the meeting of the Microscopical Society of London, and which was published in volume vii of the Transactions, "On DiatomacelB collected in the.u nited States."In it there is spoken of a gathering made at Hoboken, N. J., in which eighty-six species of DiatomacelB, from fresh, brackish and salt water are mentioned as .comingfrom that locality.This gathering, or rather these gatherings, for there were more than one hundred made at that time, were mostly from a large brook, the mud of which yielded the shells of the dead Diaro-macelB.At that time I did not try to work out the geology of the deposit, only pointing out that the mixture of marine, brackish and fresh water fot'llls in the deposit was curious.Since that time I have kept the matter in view and am now prepared to assert what I believe to be the geology of the deposit.I shall show that the DiatomacelB in it, and by which its geology is determined, are widely spread.It is the first time that DiatomacelB are found at all in the geological scale and referred to the brackish, although they are indicated by Ehrenberg in the Mikrogeologie, 1854, as coming from Norwich, Conn.This I will show is the same ~ s those.They are known to be mal'ine and are referred to the Eocene, Oligocene or Miocene Tertiary.These are f\'Om Paita, Peru; San Pedro (or farther south in Southern California) to Sub Little Mines, Del Norte Co., in California; Petersburg, Virginia, to Atlantic City, New J el'sey; Omn, in Africa; Mors, in Denmark; Simbirsk, in Russia; Sentz Peter, in Hungary; Moron, in Spain; Nicobar Island, in the Bay of Bengal; Cuba, Trinidad and Barbadoes, in the West India Islands; Sandai, Kobe and Netanai, in Japan; the Island of Sicily and Omal'U. in New Zealand.On the 18th of December, 1871, I read a paper before the Lyceum of Natural History, New York, "On a deposit of marsh-mud upheaval by superincumbent pressure and containing the remains of shells of Mollnsca and microscopic organisms," which was not then published, but is now for the first time in the microscopic notes for Jan nary 1, 189a.As this records the instance of the shells of marine and brackish DiatomacelB in this deposit also, it now sees the light.The third instance of marine, brackish and fresh-water DiatomacelB mixed I have now to publish.This deposit I have studied for over three years past.Besides the many spots on the
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openalex_W2315367560 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Ann Edwards
Journal american journal of science
Year 1893
DOI
10.2475/ajs.s3-45.269.385
URL
https://doi.org/10.2475/ajs.s3-45.269.385
Keywords Keywords not found

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