Stable carbon and oxygen isotope ratios of bulk sediment from DSDP Hole 62-463 (Appendix A), supplement to: Ando, Atsushi; Kaiho, Kunio; Kawahata, Hodaka; Kakegawa, Takeshi (2008): Timing and magnitude of early Aptian extreme warming: Unraveling primary d18O variation in indurated pelagic carbonates at Deep Sea Drilling Project Site 463, central Pacific Ocean. Palaeogeography, Palaeoclimatology, Palaeoecology, 260(3-4), 463-476

Atsushi Ando, Kunio Kaiho, Hodaka Kawahata & Takeshi Kakegawa
In order to elucidate early Aptian marine paleotemperature evolution across the period of enhanced organic carbon (Corg)-burial [Oceanic Anoxic Event (OAE) 1a], stable isotope analyses were performed on pelagic limestones at Deep Sea Drilling Project Site 463, central Pacific Ocean. The delta18O data exhibit a distinct anomaly by ~-2 per mil spanning the OAE 1a interval (i.e., a ~6 m-thick, phytoplanktonic Corg-rich unit constrained by magneto-, bio- and delta13C stratigraphy). Elucidation of paleotemperature significance of...
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