Interpreting the environmental record in the sediments of Blelham Tarn

Pennington, W. and Cranwell, P.A. and Haworth, E.Y. and Bonny, A.P. and Lishman, J.P. (1977) Interpreting the environmental record in the sediments of Blelham Tarn. In: Forty-fifth annual report for the year ended 31st March 1977. Ambleside, UK, Freshwater Biological Association, (Annual Report, Freshwater Biological Association, Ambleside)

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Abstract

Two aspects of the environmental record in the sediments of Blelham Tarn have been investigated: (1) the ecological history of the catchment, and lake-catchment relationships, by detailed analysis of the preserved pollen (as an indication of vegetation) and sediment composition with respect to a range of inorganic and organic geochemical variables and (2) a detailed investigation of the manner in which sediment is being formed today, including the way in which microfossils (pollen and diatoms) are being recruited and incorporated into sediments. When the record was examined by biological and geochemical analysis, together with radionuclide dating, of closely spaced samples, it was found that the changes of the last 30 yrs represented only the most recent episode in a long history of modification of the lake by man. To find an approach to this it is necessary to go back for at least 2500 yrs.

Item Type: Book Section
Title: Interpreting the environmental record in the sediments of Blelham Tarn
Personal Creator/Author:
CreatorsEmail
Pennington, W.
Cranwell, P.A.
Haworth, E.Y.
Bonny, A.P.
Lishman, J.P.
Title of Book: Forty-fifth annual report for the year ended 31st March 1977
Refereed: No
Series Name: Annual Report, Freshwater Biological Association, Ambleside
Date: 1977
Publisher: Freshwater Biological Association
Place of Publication: Ambleside, UK
Issuing Agency: Freshwater Biological Association
Uncontrolled Keywords: Environmental conditions; Sediment analysis; Sediment sampling; Sediment-water interface; Unconsolidated sediments; England; Lake District; Annual report
Subjects: Biology
Ecology
Limnology
Item ID: 5166
Depositing User: Mrs Christine Davey
Date Deposited: 10 May 2011 17:17
Last Modified: 29 Sep 2011 15:18
Related URLs:
URI: http://aquaticcommons.org/id/eprint/5166

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