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Sanfilippo, Annika; Nigrini, Catherine A (1995): Radiolarian stratigraphy across the Oligocene/Miocene transition in low latitudes. PANGAEA, https://doi.org/10.1594/PANGAEA.683554, Supplement to: Sanfilippo, A; Nigrini, CA (1995): Radiolarian stratigraphy across the Oligocene/Miocene transition. Marine Micropaleontology, 24(3-4), 239-285, https://doi.org/10.1016/0377-8398(94)00015-F

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Abstract:
Recently the International Union of Geological Sciences (Commission on Stratigraphy, Working Group on the Paleogene/Neogene Boundary) proposed that the Oligocene/Miocene boundary be placed at the base of Chron C6Cn2n at 23.8 Ma on the Cande and Kent (1992) magnetic time scale, where it is approximated by planktic foraminifera at the first occurrence of Globorotulia kugleri, and by calcareous nannofossils at the last occurrence of Sphenolithus ciperoensis and the first and last occurrences of Sphenolithus delphix and S. capricornutus. Herein we show that, in terms of radiolarians, the base of Chron C6Cn2n can be correlated with the upper part of the Lychnocanoma elongata Zone between the last occurrence of Artophormis gracilis (23.94 Ma) and the first occurrence of Cyrtocapsella tetrapera (23.69 Ma).
Since the proposed stratotype at Lemme-Carrosio (Italy) does not contain radiolarians at the boundary, we re-examined 13 DSDP sites and established the stratigraphic sequence of 29 first and last radiolarian occurrences and one evolutionary transition across the boundary. Nine of these sites contain both calcareous and siliceous microfossils and thus allow for an integrated biostratigraphy. Paleomagnetic stratigraphy is not available for any of the DSDP cores examined. However, use of Hodell and Woodruff's (1994) strontium isotope curve from DSDP Site 289 has permitted calibration of several low latitude microfossil datum levels against the geomagnetic polarity scale. Two new species, Lychnocanoma apodora and Eucyrtidium plesiodiaphanes, are described.
Project(s):
Coverage:
Median Latitude: 3.205231 * Median Longitude: -136.435623 * South-bound Latitude: -11.001500 * West-bound Longitude: 158.511500 * North-bound Latitude: 15.116500 * East-bound Longitude: -19.851300
Date/Time Start: 1969-08-31T00:00:00 * Date/Time End: 1982-04-11T00:00:00
Event(s):
15-146 * Latitude: 15.116500 * Longitude: -69.377800 * Date/Time: 1970-12-22T00:00:00 * Elevation: -3949.0 m * Penetration: 762 m * Recovery: 145.3 m * Location: Caribbean Sea/BASIN * Campaign: Leg15 * Basis: Glomar Challenger * Device: Drilling/drill rig (DRILL) * Comment: 43 cores; 370 m cored; 4 m drilled; 39.3 % recovery
30-289 * Latitude: -0.498700 * Longitude: 158.511500 * Date/Time: 1973-05-31T00:00:00 * Elevation: -2206.0 m * Penetration: 1271 m * Recovery: 709.1 m * Location: South Pacific/PLATEAU * Campaign: Leg30 * Basis: Glomar Challenger * Device: Drilling/drill rig (DRILL) * Comment: 133 cores; 1270.8 m cored; 0 m drilled; 55.8 % recovery
33-315A * Latitude: 4.171000 * Longitude: -158.525700 * Date/Time: 1973-11-13T00:00:00 * Elevation: -4152.0 m * Penetration: 1034 m * Recovery: 130.5 m * Location: North Pacific/FAN * Campaign: Leg33 * Basis: Glomar Challenger * Device: Drilling/drill rig (DRILL) * Comment: 33 cores; 315.1 m cored; 9.5 m drilled; 41.3 % recovery
Size:
13 datasets

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Datasets listed in this Collection

  1. Sanfilippo, A; Nigrini, CA (1995): (Table 10) Distribution of Oligocene to Miocene radiolarians in DSDP Hole 15-146 from the Caribbean Sea. https://doi.org/10.1594/PANGAEA.683543
  2. Sanfilippo, A; Nigrini, CA (1995): (Table 11) Distribution of Oligocene to Miocene radiolarians in DSDP Hole 30-289 from the Ontong Java Plateau, Pacific Ocean. https://doi.org/10.1594/PANGAEA.683544
  3. Sanfilippo, A; Nigrini, CA (1995): (Table 12) Distribution of Oligocene to Miocene radiolarians in DSDP Hole 33-315A from the Central Pacific Ocean. https://doi.org/10.1594/PANGAEA.683547
  4. Sanfilippo, A; Nigrini, CA (1995): (Table 13) Distribution of Oligocene to Miocene radiolarians in DSDP Hole 33-317B from the Central Pacific Ocean. https://doi.org/10.1594/PANGAEA.683548
  5. Sanfilippo, A; Nigrini, CA (1995): (Table 14) Distribution of Oligocene to Miocene radiolarians in DSDP Hole 41-366A from the equatorial Atlantic Ocean. https://doi.org/10.1594/PANGAEA.683551
  6. Sanfilippo, A; Nigrini, CA (1995): (Table 15) Distribution of Oligocene to Miocene radiolarians in DSDP Hole 85-573B from the Central Pacific Ocean. https://doi.org/10.1594/PANGAEA.683552
  7. Sanfilippo, A; Nigrini, CA (1995): (Table 16) Distribution of Oligocene to Miocene radiolarians in DSDP Hole 85-574C from the Central Pacific Ocean. https://doi.org/10.1594/PANGAEA.683553
  8. Sanfilippo, A; Nigrini, CA (1995): (Table 4) Distribution of Oligocene to Miocene radiolarians at DSDP Site 7-64_Site of the Ontong Java Plateau, Pacific Ocean. https://doi.org/10.1594/PANGAEA.683535
  9. Sanfilippo, A; Nigrini, CA (1995): (Table 5) Distribution of Oligocene to Miocene radiolarians at DSDP Site 8-69_Site from the Central Pacific Ocean. https://doi.org/10.1594/PANGAEA.683538
  10. Sanfilippo, A; Nigrini, CA (1995): (Table 6) Distribution of Oligocene to Miocene radiolarians in DSDP Hole 8-70A from the Central Pacific Ocean. https://doi.org/10.1594/PANGAEA.683539
  11. Sanfilippo, A; Nigrini, CA (1995): (Table 7) Distribution of Oligocene to Miocene radiolarians in DSDP Hole Aug 71 from the Central Pacific Ocean. https://doi.org/10.1594/PANGAEA.683540
  12. Sanfilippo, A; Nigrini, CA (1995): (Table 8) Distribution of Oligocene to Miocene radiolarians in DSDP Hole 9-77B from the Central Pacific Ocean. https://doi.org/10.1594/PANGAEA.683541
  13. Sanfilippo, A; Nigrini, CA (1995): (Table 9) Distribution of Oligocene to Miocene radiolarians in DSDP Hole Sep 78 from the Central Pacific Ocean. https://doi.org/10.1594/PANGAEA.683542