Kroon, Dick; Reijmer, John J G; Rendle, Rebecca (2000): Aragonite content, stable oxygen isotopes of Globigerioides ruber, and age of ODP Site 166-1006 sediments [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.798371, Supplement to: Kroon, D et al. (2000): Mid- to late-Quaternary variations in the oxygen isotope signature of Globigerinoides ruber at Site 1006 in the western subtropical Atlantic. In: Swart, PK; Eberli, GP; Malone, MJ; Sarg, JF (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 166, 1-10, https://doi.org/10.2973/odp.proc.sr.166.104.2000
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Abstract:
The 1.4-m.y.-long stable oxygen isotope record of Site 1006 in the low-latitude North Atlantic Ocean shows large glacial/interglacial amplitude changes caused by a combination of temperature and salinity fluctuations. A trend of increased sea-surface temperatures during the interglacial periods is present in the record beginning at isotopic Stage 11 and ultimately leading to the lightest d18O values in isotopic Stages 9, 5, and 1. Maximum d18O values are recorded during glacial isotopic Stages 6 and 8. Stable isotopic variability increased during the Brunhes Chron at the 100-ka time scale. The large amplitude changes can best be explained by global and regional ocean circulation changes. Increased strengthened return flow of warm salty water from the Pacific may have occurred during interglacial periods since isotopic Stage 11, which was largely reduced during glacial periods. The large climate fluctuations had a profound effect on the shallow-water carbonate production of the Great Bahama Bank. The aragonite content of the sediments shows fluctuations that follow the d18O record. The leeward side of the Great Bahama Bank received increased input of platform material during sea-level highstands when the sea-surface waters were warm.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 24.399817 * Median Longitude: -79.459133 * South-bound Latitude: 24.399800 * West-bound Longitude: -79.459200 * North-bound Latitude: 24.399850 * East-bound Longitude: -79.459000
Date/Time Start: 1996-03-20T00:00:00 * Date/Time End: 1996-03-24T14:55:00
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
3 datasets
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Datasets listed in this publication series
- Kroon, D; Reijmer, JJG; Rendle, R (2000): (Table 3) Aragonite content, stable oxygen isotopes of Globigerinoides ruber, and age of ODP Site 166-1006 sediments. https://doi.org/10.1594/PANGAEA.798370
- Kroon, D; Reijmer, JJG; Rendle, R (2000): (Table 1) Aragonite content and stable oxygen isotopes of Globigerinoides ruber in ODP Hole 166-1006A sediments. https://doi.org/10.1594/PANGAEA.798368
- Kroon, D; Reijmer, JJG; Rendle, R (2000): (Table 2) Aragonite content and stable oxygen isotopes of Globigerinoides ruber in ODP Hole 166-1006B sediments. https://doi.org/10.1594/PANGAEA.798369