Centro de astrobiología asociado al NASA Astrobiology Institute

Auditorio CAB. Fundamentos de Astrobiología: How do geologists measure the Earth ages?

Ponente: José Javier Álvaro Blasco, CAB

19 de marzo de 2013, 12:00h

Auditorio Centro de Astrobiologia (CSIC-INTA)

La conferencia se podrá seguir en directo a través del enlace rtsp://roa.cti.csic.es/cab.sdp

Instituto Nacional de Técnica Aeroespacial
Ctra de Ajalvir, km 4
28850 Torrejón de Ardoz, Madrid

Para facilitar el acceso a recinto del INTA es necesario solicitarlo previamente al correo electrónico gerencia@cab.inta-csic.es

Resumen: Geologists have developed three different methods of determining the age on Earth: radiation measurement (absolute time), stratigraphic superposition, and fossil record correlation (relative time). By using them, or a combination of them, the age of rocks associated with past events and even the evolution rate of life can be determined. Based on this research, both geochronological (geological time) and chronostratigraphical (rocks of a certain age) charts have been erected to put order in the geological and biological processes of the Earth history. The International Commission on Stratigraphy of the International Union of Geological Sciences keeps watch and test both geochronological and chronostratigraphical units, setting global standards for the fundamental scale for expressing the history of the Earth.

Enlaces

• José Javier Álvaro Blasco