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Comentario sobre "Cambios en la temperatura del mar profundo y el volumen de hielo a través de las transiciones
1Lamont-Doherty Earth Observatory of Columbia University, 61 Route 9W, Post Office Box 1000, Palisades, NY 10964-8000, USA. jiminyu@ldeo.columbia.edu
Science (New York, N.Y.)
|June 19, 2010
Resumen
Este estudio cuestiona la confiabilidad de los registros de temperatura de los océanos profundos del pasado derivados de foraminíferos bentónicos del Atlántico Norte. Los hallazgos desafían las conclusiones anteriores sobre el volumen de hielo y la dinámica de las capas de hielo durante las principales transiciones climáticas.
Área de la Ciencia:
- La paleoceanografía es la paleoceanografía.
- Geología marina Geología marina.
- Ciencias del clima Ciencias del clima Ciencias del clima
Sus antecedentes:
- Las relaciones Mg/Ca de benthic foraminifera se utilizan para reconstruir temperaturas oceánicas pasadas.
- Estudios previos sugirieron roles significativos para el volumen y la dinámica del hielo en los cambios climáticos del Plioceno-Pleistoceno.
- La reconstrucción de las temperaturas de las profundidades oceánicas es crucial para comprender la dinámica climática pasada.
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