963 resultados para Coastal Survey Maps


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"May 1976."

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Supplemented by: Publications issued ... January, 1894[-June 1895]. [London : H.M.S.O., 1894-1895]. 18 no. Caption title. Number for April 1895 wanting. Bound with Catalogue of maps and plans ... of England and Wales, and the Isle of man, to 1st of Jan. 1888.

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Extracted from U.S. Geological survey. Bulletin no. 227.

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The 1917 edition has title: List of maps and publications issued by the Topographical surveys branch and available for distribution.

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Mode of access: Internet.

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This is especially well supported by down core variation Zn concentration. As Caspian Sea water intrudes into the Bay, it may be concluded that some part of pollution has sea origin. The geochemical index (Igeo) was reformulated for the area of study using chemical partitioning as well as Pb-210 results. The newly developed geochemical index is indicative of low to medium pollution intensity in the Bay of Gorgan. Thus, any additional pollution into the area of study may leave adverse effects on the aquatic ecology of Bay of Gorgan. Further, lithogenous and non-lithogenous inputs of metals into the Bay were assessed. For this purpose and through chemical partitioning, association of metals with different sedimentary phases was determined. The overall results show that about 114th total metal concentration have been added into the Bay of Gorgan through human activities.