Droser, M L; Bottjer, D J (1991): Distribution of trace fossils and ichnofabric indices in ODP holes of Leg 119. PANGAEA, https://doi.org/10.1594/PANGAEA.728529, Supplement to: Droser, ML; Bottjer, DJ (1991): Trace fossils and ichnofabric in Leg 119 cores. In: Barron, J; Larsen, B; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 119, 635-641, https://doi.org/10.2973/odp.proc.sr.119.206.1991
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Trace fossils and ichnofabric were examined from cores of Late Cretaceous to Quaternary age recovered from the Kerguelen Plateau, Indian Ocean. Nearly all of the strata are completely bioturbated, with ichnofabric index 6 most commonly recorded. Preserved discrete trace fossils include Chondrites, Planolites, Zoophycos, and Thalassinoides. A continuous Cretaceous/Tertiary boundary section preserved at ODP Site 738 occurs within a 15-cm-thick interval of laminated sediments. The lack of bioturbation indicates the disappearance of bioturbating organisms from the seafloor, possibly as a result of the same factors that caused the mass extinction or changes in other environmental conditions - most probably, bottom-water oxygen concentrations.
Median Latitude: -56.468500 * Median Longitude: 77.910100 * South-bound Latitude: -62.709000 * West-bound Longitude: 73.032400 * North-bound Latitude: -50.228000 * East-bound Longitude: 82.787800
Date/Time Start: 1987-12-31T17:15:00 * Date/Time End: 1988-01-17T05:00:00
119-737B * Latitude: -50.228000 * Longitude: 73.032400 * Date/Time Start: 1987-12-31T17:15:00 * Date/Time End: 1988-01-04T09:30:00 * Elevation: -575.0 m * Penetration: 715.5 m * Recovery: 298.35 m * Location: Indian Ocean * Campaign: Leg119 * Basis: Joides Resolution * Device: Drilling/drill rig (DRILL) * Comment: 50 cores; 481.3 m cored; 0 m drilled; 62 % recovery
119-738C * Latitude: -62.709000 * Longitude: 82.787800 * Date/Time Start: 1988-01-11T18:45:00 * Date/Time End: 1988-01-17T05:00:00 * Elevation: -2263.0 m * Penetration: 533.8 m * Recovery: 146.03 m * Location: Indian Ocean * Campaign: Leg119 * Basis: Joides Resolution * Device: Drilling/drill rig (DRILL) * Comment: 35 cores; 337.2 m cored; 0 m drilled; 43.3 % recovery
Datasets listed in this Collection
- Droser, ML; Bottjer, DJ (1991): (Table 1) Distribution of trace fossils and ichnofabric indices in ODP Hole 119-737B. https://doi.org/10.1594/PANGAEA.728527
- Droser, ML; Bottjer, DJ (1991): (Table 1) Distribution of trace fossils and ichnofabric indices in ODP Hole 119-738C. https://doi.org/10.1594/PANGAEA.728528