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Updated: May 7, 2026
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Establishment of Microbial Eukaryotic Enrichment Cultures from a Chemically Stratified Antarctic Lake and Assessment of Carbon Fixation Potential
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Rápido inicio gradual de la glaciación antártica y una compensación de calcita más profunda en el Océano Pacífico
Helen K Coxall1, Paul A Wilson, Heiko Pälike
1Southampton Oceanography Centre, School of Ocean and Earth Science, European Way, Southampton SO14 3ZH, UK.
Nature
|January 7, 2005
Resumen
La profundidad de la compensación de calcita se profundizó rápidamente en dos fases distintas, coincidiendo con el crecimiento inicial de las capas de hielo antárticas hace 34 millones de años. Este evento también sugiere un enfriamiento global más amplio y la glaciación del hemisferio norte.
Área de la Ciencia:
- La paleoceanografía es la paleoceanografía.
- Ciencias del clima Ciencias del clima Ciencias del clima Ciencias del clima
- Geología Geología Geología.
Sus antecedentes:
- La profundidad de compensación de calcita (CCD) es la profundidad del océano donde la entrada de carbonato de calcio es igual a la disolución, influenciada por la acidez del océano, el CO2 atmosférico y el clima global.
- Los registros geológicos indican una profundización significativa del CCD cerca del límite Eoceno / Oligoceno (hace 34 millones de años) que coincide con la glaciación antártica, aunque el vínculo no está claro.
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