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A first estimate of organic carbon storage in Holocene lake sediments in Alberta, Canada (2000)

Campbell, I.D. ; Campbell, C. ; Vitt, D.H. ; [et al.]

Springer

Journal of paleolimnology 24 (2000), S. 395-400

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ISSN: 1573-0417

Keywords: carbon storage ; lake sediment ; Holocene ; Canada ; climate change ; organic matter

Source: Springer Online Journal Archives 1860-2000

Topics: Biology , Geosciences

Notes: Abstract This paper reports a first estimate of the Holocene lake sediment carbon pool in Alberta, Canada. The organic matter content of lake sediment does not appear to depend strongly on lake size or other limnological parameters, allowing a simple first estimate in which we assume all Alberta lake sediment to have the same organic matter content. Alberta lake sediments sequester about 15 g C m-2 yr-1, for a provincial total of 0.23 Tg C yr-1, or 2.3 Pg C over the Holocene. Alberta lakes may represent as much as 1/1700 of total global, annual permanent carbon sequestration.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1023/A:1008103605817

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Corrosion rate measurements in vivo (1967)

Colangelo, V. J. ; Greene, N. D. ; Kettelkamp, D. B. ; [et al.]

Hoboken, NJ : Wiley-Blackwell

Journal of Biomedical Materials Research 1 (1967), S. 405-414

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ISSN: 0021-9304

Keywords: Chemistry ; Polymer and Materials Science

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Medicine , Technology

Notes: Corrosion resistance is particularly important in medical treatments requiring implantation of metallic objects in the human body. Unfortunately, weight loss measurements and other conventional corrosion testing techniques are insufficiently sensitive and difficult to adapt to in vivo environments. The linear polarization technique can be used to remotely meaure the corrosion rates of metals implanted in tissue using needle probes. The principles of this technique are reviewed and the results of tests performed on steel, cobalt, and molybdenum implanted in experimental animals are discussed.

Additional Material: 7 Ill.