Benthic stable-isotope records of ODP Site 208-1262, South Atlantic ...

• Main Authors: Littler, Kate, Röhl, Ursula, Westerhold, Thomas, Zachos, James C
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2014
• Subjects: Ocean Drilling Program ODP; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.833215; https://doi.pangaea.de/10.1594/PANGAEA.833215

The Late Paleocene and Early Eocene were characterised by warm greenhouse climates, punctuated by a series of rapid warming and ocean acidification events known as "hyperthermals", thought to have been paced or triggered by orbital cycles. While these hyperthermals, such as the Paleocene Eocene Thermal Maximum (PETM), have been studied in great detail, the background low-amplitude cycles seen in carbon and oxygen-isotope records throughout the Paleocene-Eocene have hitherto not been resolved. Here we present a 7.7 million year (myr) long, high-resolution, orbitally-tuned, benthic foraminiferal stable-isotope record spanning the late Paleocene and early Eocene interval (~52.5 - 60.5 Ma) from Ocean Drilling Program (ODP) Site 1262, South Atlantic. This high resolution (~2-4 kyr) record allows the changing character and phasing of orbitally-modulated cycles to be studied in unprecedented detail as it reflects the long-term trend in carbon cycle and climate over this interval. The main pacemaker in the benthic ... : Supplement to: Littler, Kate; Röhl, Ursula; Westerhold, Thomas; Zachos, James C (2014): A high-resolution benthic stable-isotope record for the South Atlantic: Implications for orbital-scale changes in Late Paleocene–Early Eocene climate and carbon cycling. Earth and Planetary Science Letters, 401, 18-30 ...