Evolution of the South Atlantic passive continental margin in southern Brazil derived from zircon and apatite (U-Th-Sm)/He and fission-track data

The area between São Paulo and Porto Alegre in southeastern Brazil plays a key area to understand and quantify the evolution of the South Atlantic passive continental margin (SAPCM) in Brazil. In this contribution, we present new thermochronological data attained by fission-track and (U-Th-Sm)/He analysis on apatites and zircons from metamorphic, sedimentary and intrusive rocks. The zircon fission-track ages range between 108.4 (15.0) and 539.9 (68.4). Ma, the zircon (U-Th-Sm)/He ages between 72.9 (5.8) and 525.1(2.4). Ma, whereas the apatite fission-track ages range between 40.0 (5.3) and 134.7 (8.0). Ma, and the apatite (U-Th-Sm)/He ages between 32.1 (1.5) and 93.0 (2.5). Ma. The spatial distribution of these ages shows three distinct blocks with a different evolution cut by old fracture zones. While the central block exhibits an old stable block, the Northern and especially the Southern block underwent complex post-rift exhumation. The sample of the Northern block shows two distinct cooling phases in the Upper Cretaceous and the Paleogene to Neogene. After sedimentation of the Permian sandstones the samples of the Central block were never heated up over 100. °C with a following moderate to fast cooling phase in Cretaceous to Eocene time and a fast cooling between Oligocene to Miocene. The five thermal models obtained in the Southern block indicate a complex evolution with three cooling phases. The exhumation events of the three blocks correspond with the Paraná-Etendekka event, the alkaline intrusions due to the Trinidad hotspot, and the evolution of the continental rift basins in SE Brazil and are, therefore, most likely to be the major force for the post-rift evolution of the passive continental margin in SE Brazil, which therefore corresponds to the three main phases of the Andean orogeny. © 2013 Elsevier B.V.

Co-operation between Latin America and Africa in the field of external trade

Includes bibliography

Perspectivas de la cooperación técnica entre Africa y América Latina para el desarrollo de los recursos humanos

Contiene el producto de la informacion recogida en 5 paises de la Region -Argentina, Brasil, Colombia, Mexico, Trinidad y Tabago- sobre las posibilidades de cooperacion mutua entre estos paises y paises africanos en el campo de la capacitacion de los recursos humanos. En especial se refiere a la capacitacion de personal para los sectores productivos, de personal para la administracion publica, y de especialistas en planeamiento economico y social. En anexo, incluye repertorio de instituciones de capacitacion de America Latina y el Caribe.

Prospects for technical co-operation in manpower development between Africa and Latin America

Contiene el producto de la informacion recogida en 5 paises de la Region -Argentina, Brasil, Colombia, Mexico, Trinidad y Tabago- sobre las posibilidades de cooperacion mutua entre estos paises y paises africanos en el campo de la capacitacion de los recursos humanos. En especial se refiere a la capacitacion de personal para los sectores productivos, de personal para la administracion publica, y de especialistas en planeamiento economico y social. En anexo, incluye repertorio de instituciones de capacitacion de America Latina y el Caribe.

Posibilidades de cooperación entre América Latina y Africa en el campo del comercio exterior

Incluye Bibliografía

Policy considerations toward allocation of resources and the integration of agricultural research into national development programmes

Analiza el rol del sector agricola en el desarrollo economico de la region, con especial referencia a Trinidad y Tabago, y presenta una serie de consideraciones en favor de la asignacion de recursos y de la integracion de la investigacion agricola en los programas de desarrollo nacional.

Research on sugar-cane and rice

Analiza la estructura de la industria azucarera en Trinidad y Tabago, sus politicas y funciones, sus programas de investigacion y objetivos. Presenta un sumario de los proyectos en curso para 1983- 84 y los efectos de los proyectos de investigacion sobre la productividad de cultivos distintos de los del azucar de cana.

Countertrade policies and practices with special reference to selected Caribbean countries

Includes bibliography

An analysis of maritime transport and its costs for the Caribbean

Includes bibliography

Review of the implementation of the Programme of Action for the Sustainable Development of Small Island Developing States (SIDS) in the Caribbean subregion, 1994-2003

Includes bibliography

Impacto socioeconómico del sismo ocurrido el 21 de enero de 2003 en el estado de Colima, México

Incluye Bibliografía

Istmo Centroamericano: diagnóstico de la industria petrolera

Incluye Bibliografía

Relaciones CARICOM-Centroamérica y la República Dominicana: una ventana de oportunidades de comercio e inversión

Prólogo de la Sra. Alicia Bárcena, Secretaria Ejecutiva de CEPAL, y de José Miguel Insulza, Secretario General de OEA

Relations between CARICOM and Central America and the Dominican Republic: a window of opportunity for trade and investment

Includes bibliography

Caribbean enterprise for the production and distribution of printed and audio-visual materials: a pre-feasibility study

Includes bibliography