Nigrini, Catherine A; Sanfilippo, Annika; Moore, Theodore J (2005): Radiolarian biostratigraphy and chronology of radiolarian events of ODP Leg 199 sites and EW9709 sediment cores. PANGAEA, https://doi.org/10.1594/PANGAEA.777995, Supplement to: Nigrini, CA et al. (2005): Cenozoic radiolarian biostratigraphy: a magnetobiostratigraphic chronology of Cenozoic sequences from ODP Sites 1218, 1219, and 1220, equatorial Pacific. In: Wilson, PA; Lyle, M; Firth, JV (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 199, 1-76, https://doi.org/10.2973/odp.proc.sr.199.225.2005
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A generally rich radiolarian fauna ranging in age from Quaternary to early Eocene (Zone RP7) was found at five of the eight sites drilled during Ocean Drilling Program (ODP) Leg 199. Of particular interest are the stratigraphically complete assemblages that range in age from middle Miocene (Zone RN5) to early Eocene (Zone RP7), composites of Sites 1218, 1219, and 1220. At the same sites, multisensor track (MST) data show consistent cycles in gamma ray attenuation density, color, and carbonate content that can be correlated on a submeter scale from the early Miocene to early Eocene. In addition, the magnetic reversal records from these three sites allow construction of an absolute timescale. A series of 305 radiolarian morphologic first and last occurrences and evolutionary transitions for radiolarians were determined and correlated directly with the accompanying MST and paleomagnetic data, resulting in a detailed and accurate dating of events. Since many of the bioevents are found at more than one site, it was also possible to test their reliability within the study area. Twelve new species are described: Calocycletta (Calocycletta) anekathen, Dorcadospyris anastasis, Dorcadospyris copelata, Dorcadospyris cyclacantha, Dorcadospyris ombros, Dorcadospyris scambos, Eucyrtidium mitodes, Theocyrtis careotuberosa, Theocyrtis perpumila, Theocyrtis perysinos, Theocyrtis setanios, and Thyrsocyrtis (Pentalacorys) orthotenes.
Median Latitude: 8.278091 * Median Longitude: -139.207142 * South-bound Latitude: 5.000000 * West-bound Longitude: -142.758380 * North-bound Latitude: 10.176660 * East-bound Longitude: -135.366650
Date/Time Start: 2001-11-14T00:00:00 * Date/Time End: 2001-11-28T00:00:00
199-1218 * Latitude: 8.889630 * Longitude: -135.366660 * Date/Time: 2001-11-14T00:00:00 * Elevation: -4827.2 m * Penetration: 797.1 m * Recovery: 723.7 m * Location: North Pacific Ocean * Campaign: Leg199 * Basis: Joides Resolution * Device: Composite Core (COMPCORE) * Comment: 80 cores; 735.1 m cored; 62 m drilled; 98.5% recovery
199-1218A * Latitude: 8.889450 * Longitude: -135.366660 * Date/Time: 2001-11-14T00:00:00 * Elevation: -4826.3 m * Penetration: 276.8 m * Recovery: 266.42 m * Location: North Pacific Ocean * Campaign: Leg199 * Basis: Joides Resolution * Device: Drilling/drill rig (DRILL) * Comment: 30 cores; 276.8 m cored; 0 m drilled; 96.3 % recovery
199-1218B * Latitude: 8.889630 * Longitude: -135.366650 * Date/Time: 2001-11-14T00:00:00 * Elevation: -4827.6 m * Penetration: 263.5 m * Recovery: 259.25 m * Location: North Pacific Ocean * Campaign: Leg199 * Basis: Joides Resolution * Device: Drilling/drill rig (DRILL) * Comment: 29 cores; 263.5 m cored; 0 m drilled; 98.4 % recovery