Cicloestratigrafía, Cambio Climático y la Escala de Tiempo Astronómico
- Martín-Chivelet, Javier
- Palma, Ricardo M.
- Domingo, Laura
- López-Gómez, José
ISSN: 1132-9157
Datum der Publikation: 2015
Ausgabe: 23
Nummer: 2
Seiten: 136-147
Art: Artikel
Andere Publikationen in: Enseñanza de las ciencias de la tierra: Revista de la Asociación Española para la Enseñanza de las Ciencias de la Tierra
Zusammenfassung
Cyclostratigraphy is the study of periodic processes recorded in stratigraphic successions. In the last 20 years, this discipline has experienced a rapid development concerning the recognition, characterization, and interpretation of astronomically forced climate cycles (related to Earth’s orbital parameters of obliquity, precession, and eccentricity) which have periods in the range of 104 to 105 years. The three main goals of cyclostratigraphy are: 1) to construct an astronomical time scale (ATS) which allows to calibrate the geologic time scale with an unprecedented resolution; 2) to improve the knowledge about climates changes operating at those time scales, their causes and consequences, and in particular about the behavior of the climate system in the light of the subtle changes in seasonal insolation patterns caused by orbital parameters; and 3) to increase understanding on depositional mechanisms of sediments and the dynamics of sedimentary systems. In this paper, the history and achievements of cyclostratigraphy are reviewed from a nonexhaustive didactical perspective.