Maastrichtian Foraminiferal Stable Isotope Data- Rio Grande Rise Frank, T.D.; Arthur, M.A. Frank, T.D. Arthur, M.A. earth science/paleoclimate/paleoceanography (delta 13C,benthic foraminifer,null,per mil PDB,null,paleoceanography,null,null,N,Gavelinella beccariiformis) earth science/paleoclimate/paleoceanography (delta 13C,planktic foraminifer,null,per mil PDB,null,paleoceanography,null,null,N,Rugoglobigerina rotundata) earth science/paleoclimate/paleoceanography (delta 18O,benthic foraminifer,null,per mil PDB,null,paleoceanography,null,null,N,Nuttallides truempyi) earth science/paleoclimate/paleoceanography (delta 18O,benthic foraminifer,null,per mil PDB,null,paleoceanography,null,null,N,Gavelinella beccariiformis) earth science/paleoclimate/paleoceanography (delta 13C,planktic foraminifer,null,per mil PDB,null,paleoceanography,null,null,N,Pseudotextularia ultimatudima) earth science/paleoclimate/paleoceanography (delta 13C,benthic foraminifer,null,per mil PDB,null,paleoceanography,null,null,N,Nuttallides truempyi) earth science/paleoclimate/paleoceanography (delta 13C,benthic foraminifer,null,per mil PDB,null,paleoceanography,null,null,N,Gavelinella sp.) earth science/paleoclimate/paleoceanography (delta 13C,planktic foraminifer,null,per mil PDB,null,paleoceanography,null,null,N,Pseudotextularia elegans) earth science/paleoclimate/paleoceanography (delta 18O,planktic foraminifer,null,per mil PDB,null,paleoceanography,null,null,N,Pseudotextularia elegans) earth science/paleoclimate/paleoceanography (age,null,null,radiocarbon year before present,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (delta 18O,Nuttallides sp.,null,per mil PDB,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (delta 13C,Nuttallides sp.,null,per mil PDB,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (delta 18O,planktic foraminifer,null,per mil PDB,null,paleoceanography,null,null,N,Pseudotextularia ultimatudima) earth science/paleoclimate/paleoceanography (delta 18O,benthic foraminifer,null,per mil PDB,null,paleoceanography,null,null,N,Gavelinella sp.) earth science/paleoclimate/paleoceanography (depth,null,null,centimeter,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (delta 18O,planktic foraminifer,null,per mil PDB,null,paleoceanography,null,null,N,Rugoglobigerina rotundata) earth science/paleoclimate/paleocean earth science/paleoclimate/paleocean earth science/paleoclimate/paleocean (DSDP 548>LATITUDE 48.92>LONGITUDE -12.17) (DSDP 390>LATITUDE 30.15>LONGITUDE -76.12) (DSDP 357>LATITUDE -30.42>LONGITUDE -35.57) A global compilation of deep-sea isotopic records suggests that Maastrichtian ocean-climate evolution was tectonically driven. During the early Maastrichtian the Atlantic intermediate-deep ocean was isolated from the Pacific, Indian, and Southern Oceans; deep water formed in the high-latitude North Atlantic and North Pacific. At the early/late Maastrichtian boundary a major reorganization of oceanic circulation patterns occurred, resulting in the development of a thermohaline circulation system similar to that of the modern oceans. A combination of isotopic and plate kinematic data suggests that this event was triggered by the final breaching of tectonic sills in the South Atlantic and the initiation of north-south flow of intermediate and deep water in the Atlantic. The onset of Laramide tectonism during the mid Maastrichtian led to the concurrent draining of major epicontinental seaways. Together, these events caused cooling, increased latitudinal temperature gradients, increased ventilation of the deep ocean, and affected a range of marine biota. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Frank, T.D. Investigator : Arthur, M.A. 1999-07-01 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/2565 https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/dsdp390-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/dsdp548-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/frank1999 https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/dsdp357-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/dsdp390-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/dsdp548-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/frank1999 https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/dsdp357-tab.txt English https://www.ncdc.noaa.gov/paleo/study/2565 https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/dsdp390-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/dsdp548-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/frank1999 https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/dsdp357-tab.txt Frank, T.D., and M.A. Arthur. 1999. Tectonic forcings of Maastrichtian ocean-climate evolution. Paleoceanography 14(2):103-117. START YEAR: 71400000 14C yr BP * END YEAR: 65060000 14C yr BP -76.12 -30.42 -12.17 48.92