Carolina Barry (2009). Evita capitana : El Partido Peronista Femenino 1949-1955. Editorial Eduntref. 368 páginas

Fil: Rey, Clara Fabiana. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.

Acción Argentina. Un antifascismo nacional en tiempos de guerra mundial, de Andrés Bisso, Buenos Aires, Prometeo Libros, 2005, 368 páginas

Fil: Garguín, Enrique. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.

Carolina Barry (2009). Evita capitana : El Partido Peronista Femenino 1949-1955. Editorial Eduntref. 368 páginas

Fil: Rey, Clara Fabiana. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.

Acción Argentina. Un antifascismo nacional en tiempos de guerra mundial, de Andrés Bisso, Buenos Aires, Prometeo Libros, 2005, 368 páginas

Fil: Garguín, Enrique. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.

Organic matter from black shales collected in DSDP Holes 41-367 and 41-368

It is shown that microscopic algae dominate in source material of organic matter of black shales, and admixture of residues of organisms and terrestrial humic material is contained. The main direction of source material transformation during syngenesis and sedimentogenesis is associated with jellofication resulting to formation of organic matter of significantly sapropelic type. Low reflectance of vitrinite and alginite from organic matter refer to the primary and secondary lignite stages of its carbonification. Significantly sapropel type of organic matter and low stage of carbonification are reliable criteria for assigning black shales to the category of potential oil source strata.

(Table 1) Experimental data for kerogens from DSDP Hole 41-368

Potassium permanganate oxidative degradations were conducted for kerogens isolated from Cretaceous black shales (DSDP Leg 41, Site 368), thermally altered during the Miocene by diabase intrusions and from unaltered samples heated under laboratory conditions (250-500°C). Degradation products of less altered kerogens are dominated by normal C4-C15 alpha,omega-dicarboxylic acids, with lesser amounts of n-C16 and n-C18 monocarboxylic acids, and benzene mono-to-tetracarboxylic acids. On the other hand, thermally altered kerogens show benzene di-to-tetracarboxylic acids as dominant degradation products, with lesser or no amounts (variable depending on the degree of thermal alteration) of alpha,omega-dicarboxylic acids. Essentially no differences between the oxidative degradation products of naturally- and artificially-altered kerogens are observed. As a result of this study, five indices of aromatization (total aromatic acids/kerogen; apparent aromaticity; benzenetetracarboxylic acids/total aromatic acids; benzene-1,2-dicarboxylic acid/benzenedicarboxylic acids; benzene-1,2,3-tricarboxylic acid/benzenetricarboxylic acids) and two indices of aliphatic character (Total aliphatic acids/kerogen; Aliphaticity) are proposed to characterize the degree of thermal alteration of kerogens. Furthermore, a good correlation is observed between apparent aromaticity estimated by the present KMnO4 oxidation method and that from the 13C NMR method (Dennis et al., 1982; doi:10.1016/0016-7037(82)90046-1).