![]() Late Miocene climate cooling and intensification of southeast Asian winter monsoon. Global perturbation of the carbon cycle at the onset of the Miocene Climatic Optimum. Middle Miocene climate cooling linked to intensification of eastern equatorial Pacific upwelling. Orbitally-paced climate evolution during the middle Miocene “Monterey” carbon-isotope excursion. Impacts of orbital forcing and atmospheric carbon dioxide on Miocene ice-sheet expansion. Correlation of late Miocene to early Pliocene sequences between the Mediterranean and North Atlantic. Variations in the Earth’s orbit: Pacemaker of the ice ages. Reinforcing the North Atlantic backbone: Revision and extension of the composite splice at ODP Site 982. Deciphering the state of the late Miocene to early Pliocene equatorial Pacific. Earth and Planetary Science Letters 475:254–266. Late Miocene climate and time scale reconciliation: Accurate orbital calibration from a deep-sea perspective. Assessing confidence in Pliocene sea surface temperatures to evaluate predictive models. Early Oligocene glaciation and productivity in the eastern equatorial Pacific: Insights into global carbon cycling. Rapid stepwise onset of Antarctic glaciation and deeper calcite compensation in the Pacific Ocean. The middle Pleistocene transition: Characteristics, mechanisms, and implications for long-term changes in atmospheric pCO 2. Towards a robust and consistent middle Eocene astronomical timescale. Astronomic calibration of the late Oligocene through early Miocene geomagnetic polarity time scale. Astronomical tunings of the Oligocene-Miocene transition from Pacific Ocean Site U1334 and implications for the carbon cycle. ![]() This article identifies key astronomically calibrated records through the past 66 million years (the Cenozoic) collected during multiple Deep Sea Drilling Project, Ocean Drilling Program, Integrated Ocean Drilling Program, and International Ocean Discovery Program expeditions, highlights major achievements, and suggests where future work is needed.īeddow, H.M., D. Scientific ocean drilling has been critical in this endeavor, as the recovery and analysis of high-quality and continuous marine sedimentary archives underpin such high-resolution age models for paleoclimate records. ![]() Understanding the precise nature and timing of past events is of great societal relevance as we seek to apply these insights to constrain near-future climate scenarios. Construction of these astronomically calibrated timescales is pivotal to placing major transitions and events in the geological record in their temporal context. The mathematically predictable cyclic movements of Earth with respect to the sun provides the basis for constructing highly accurate and precise age models for Earth’s past.
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