C4-C7 alkenones in deep sea sediments

It is believed that C4 to C7 hydrocarbons in petroleum are formed by the cracking of organic matter at depths generally exceeding 1,000 m at temperatures in excess of 50 °C (Cordel, 1972; Dow, 1974; Tissot et al., 1974)). Also, none of the alkanes in the butane-heptane range are formed biologically as far as is known at present. Consequently, it is thought that they do not occur in shallow, Recent sediments. In 1962, I analysed 22 samples of Recent sediments from 7 different environments and verified that these hydrocarbons were not present at the p.p.m. level (Dunton and Hunt, 1962) although traces of a few hydrocarbons such as butane, isobutane, isopentane and n-heptane have been found (Sokolov, 1957; Veber and Turkeltaub, 1958; Erdman et al., 1958; Emery and Hoggan, 1958). No identification of individual hexanes or heptanes has been reported except when there has been clear evidence of seepage from deeper source sediments (McIver, 1973).

Na 1 Nachlass Max Horkheimer, 564 - Korrespondenzen u.a. mit Alice H. Maier und Leo Löwenthal (p. VI 27, 254-402)

Briefwechsel zwischen Max Horkheimer und Alice H. Maier; 5 Briefe an Maurice und Carolyn Tumarkin von Max Horkheimer, 1957/1964; 3 Briefe zwischen Alice H. Maier und H. P. Edelman, 1957/1963; 2 Briefe von Alice H. Maier an Friedrich Pollock, 1960/1966; 2 Briefe von Max Horkheimer an The Diners Club (New York), 1965; 1 Brief an Patricia und Edward R. Wilbur von Alice H. Maier, 17.05.1965; 2 Briefe von Max Horkheimer an Patricia und Edward R. Wilbur, 1964; 2 Briefe zwischen Alice H. Maier und Alfred L. Copley, 1965; 5 Briefe zwischen William C. Kirkwood und Max Horkheimer, 1964; 2 Briefe von Max Horkheimer an Ulla Posnansky, 1964; 1 Brief an Leo Löwenthal von Max Horkheimer, 23.06.1964; 1 Brief von Max Horkheimer an Amerino Lionetti, 03.06.1964; 10 Briefe zwischen Herbert Marcuse und Max Horkheimer, 1935 - 1936; 1 Brief von R. Piper an Herbert Marcuse, 26.03.1936;

Organizational maintenance repair parts and special tools lists : auger, earth, skid mounted, gasoline engine driven, NSN 3820-00-201-8293, Texoma model 254-8x2.

Includes index.

Direct support and general support maintenance repair parts and special tools lists : auger, earth, skid mounted, gasoline engine driven NSN 3820-00-201-8293, Texoma model 254-8x2.

Includes index.

4th Biennal Europea De Paisatge Barcelona, Spain March 22-26, 2006

Between the 22nd and the 26th of March 2006, Barcelona hosted the 4th Biennal Europea de Paisatge (European Biennial of Landscape Architecture). It comprised a day of presentations for the Rosa Barba Prize for European Landscape Architecture, a day long symposium, and a half day discussion on IBA park projects. Approximately 300 people attended, including sizable groups from Barcelona, France, The Netherlands, Denmark, and Germany. Only three participants from English speaking countries were present, despite simultaneous translation into English throughout.