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Shackleton, Nicholas J; Hall, Michael A (1989): Stable carbon and oxygen isotope record of planktonic and benthic foraminifera at ODP Site 111-677 in the Panama Basin. PANGAEA,, Supplement to: Shackleton, NJ; Hall, MA (1989): Stable isotope history of the Pleistocene at ODP Site 677. In: Becker, K; Sakai, H; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Programm), 111, 295-316,

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Oxygen and carbon isotope ratio measurements are presented for Globigerinoides ruber and for benthic species (mainly Uvigerina spp.) in the Pleistocene and uppermost Pliocene section of ODP Hole 677A in the Panama Basin. This provides the best available continuous Pleistocene stable isotope records from any location, fully justifying the recoring of DSDP Site 504. Oxygen isotope stage 22 (age about 0.85 Ma) was of similar magnitude to the most extensive glacials of the Brunhes and constitutes a logical base for the middle Pleistocene. Oxygen isotope stages as defined by Ruddiman et al. (1986, doi:10.1016/0012-821X(86)90024-5) and by Raymo et al. (1989, doi:10.1029/PA004i004p00413) back to stage 104 are recognized. Although the internationally agreed base of the Quaternary at or near stage 62 (about 1.6 Ma) is not marked by a major isotopic event, it does approximate the base of a regime characterized by highly regular 41,000-yr climate cycles.
The records at Site 677 are ideal for time-series analyses and will permit a new attempt to develop a chronology for the early Pleistocene based on tuning to the orbital frequencies. The carbon isotope records also appear to contain considerable variance at orbital frequencies throughout the sequence analyzed.
Median Latitude: 1.202324 * Median Longitude: -83.737000 * South-bound Latitude: 1.202300 * West-bound Longitude: -83.737000 * North-bound Latitude: 1.202400 * East-bound Longitude: -83.737000
Date/Time Start: 1986-09-30T09:45:00 * Date/Time End: 1986-10-04T08:30:00
111-677A * Latitude: 1.202300 * Longitude: -83.737000 * Date/Time Start: 1986-09-30T09:45:00 * Date/Time End: 1986-10-03T15:15:00 * Elevation: -3472.0 m * Penetration: 309.4 m * Recovery: 279.44 m * Location: North Pacific Ocean * Campaign: Leg111 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 34 cores; 309.4 m cored; 0 m drilled; 90.3 % recovery
111-677B * Latitude: 1.202400 * Longitude: -83.737000 * Date/Time Start: 1986-10-03T15:15:00 * Date/Time End: 1986-10-04T08:30:00 * Elevation: -3473.0 m * Penetration: 93.1 m * Recovery: 93.03 m * Location: North Pacific Ocean * Campaign: Leg111 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 10 cores; 93.1 m cored; 0 m drilled; 99.9 % recovery
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