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Rapid stepwise onset of Antarctic glaciation and deeper calcite compensation in the Pacific Ocean
The ocean depth at which the rate of calcium carbonate input from surface waters equals the rate of dissolution is termed the calcite compensation depth. At present, this depth is ∼4,500 m, with someExpand
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A review of calcareous nannofossil astrobiochronology encompassing the past 25 million years
This paper presents a review of (astrobiochronological) calibration of Recent to late Oligocene calcareous nannofossil datum events. Biohorizons included in the paper are those of the widely usedExpand
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Pleistocene evolution: Northern hemisphere ice sheets and North Atlantic Ocean
We analyze five high-resolution time series spanning the last 1.65 m.y.: benthic foraminiferal δ18O and δ13O, percent CaCO3, and estimated sea surface temperature (SST) at North Atlantic Deep SeaExpand
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Oxygen isotope calibration of the onset of ice-rafting and history of glaciation in the North Atlantic region
We report here that DSDP Site 552A, cored with the hydraulic piston corer on the west flank of Rockall Bank, recovered an undisturbed sequence of alternating white deep-sea carbonate oozes andExpand
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Subtropical Arctic Ocean temperatures during the Palaeocene/Eocene thermal maximum
The Palaeocene/Eocene thermal maximum, ∼55 million years ago, was a brief period of widespread, extreme climatic warming, that was associated with massive atmospheric greenhouse gas input. AlthoughExpand
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Late Pliocene variation in northern hemisphere ice sheets and North Atlantic deep water circulation
High-resolution records of δ18O, δ13O, and percent CaCO3 from the late Pliocene North Atlantic (Deep Sea Drilling Project sites 607 and 609) are presented and oxygen isotope stages are formalizedExpand
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Biozonation and biochronology of Paleogene calcareous nannofossils from low and middle latitudes
Calcareous nannofossils have provided a powerful biostratigraphic tool since the 1950's and 1960's, when several milestone papers began to highlight their potential use in dating Cenozoic sedimentsExpand
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Biozonation and biochronology of Miocene through Pleistocene calcareous nannofossils from low and middle latitudes
Calcareous nannofossils are widely used in Cenozoic marine biostratigraphy. At present, the two most widely used calcareous nannofossil biozonations were established approximately 40 years ago. TheseExpand
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Eocene bipolar glaciation associated with global carbon cycle changes
The transition from the extreme global warmth of the early Eocene ‘greenhouse’ climate ∼55 million years ago to the present glaciated state is one of the most prominent changes in Earth's climaticExpand
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Arctic hydrology during global warming at the Palaeocene/Eocene thermal maximum
This corrects the article DOI: 10.1038/nature05043
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