Much of our understanding of Earth's past climate comes from the measurement of oxygen
and carbon isotope variations in deep-sea benthic foraminifera. Yet, long intervals in …

Chapter 1 explores the relationship between the magnitude of the ETM-1 carbon isotope
excursion (CIE) and paleo water depth in order to provide greater constraints on the wide …

Con el objetivo de conocer como varía la composición geoquímica de las aguas con la
profundidad y que factores influyen en estos cambios, se realizaron estudios de tierras raras …

Anthropogenic activity is causing atmospheric carbon dioxide to increase at rates
unprecedented in the geological record. The resulting rise in annual average temperatures …

Abstract During the Eocene-Oligocene transition, Earth cooled significantly from a
greenhouse to an icehouse climate. Nannofossil assemblages from Southern Ocean sites …

The Cenozoic represents the transition from the greenhouse world of the Cretaceous to the
ice house world of today. Nonetheless, it was not a steady linear trend from an ice free world …

Massive amounts of 13 C-depleted carbon rapidly entered the ocean more than once during
the early Paleogene, providing a geological framework for understanding future …

Sedimentological and geochemical evidence indicate that during particular periods of Earth
history, oceanic anoxia expanded and became widespread. These time intervals are …