Barron, John A; Nigrini, Catherine A; Pujos, Annick; Saito, Tsunemasa; Theyer, Fritz; Thomas, Ellen; Weinreich, Norbert (1985): (Table 7) Hiatuses and compressed intervals at DSDP Leg 85 sediments [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.803638, Supplement to: Barron, JA et al. (1985): Synthesis of biostratigraphy, central equatorial Pacific, Deep Sea Drilling Project Leg 85: refinement of Oligocene to Quaternary biochronology. In: Mayer, L; Theyer, E; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 85, 905-934, https://doi.org/10.2973/dsdp.proc.85.130.1985
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Abstract:
Biostratigraphic studies using planktonic and benthic foraminifers, calcareous nannofossils, radiolarians, diatoms, and silicoflagellates are summarized for the four main sequences (Sites 572 to 575) collected during DSDP Leg 85 in the central equatorial Pacific. Upper Eocene through Quaternary reference sections were recovered at Sites 573 and 574, and middle Miocene through Quaternary and lower Miocene through Quaternary reference sections were cored at Sites 572 and 575, respectively. Detailed graphic correlation plots suggest that Site 573 may contain as many as nine short hiatuses. Site 572 in the fertile eastern equatorial Pacific is apparently free of hiatuses, and Sites 574 and 575 have hiatuses (two each) only in the compressed upper sections.
Few inconsistencies exist in the various microfossil stratigraphies. Diachronous species occurrences are identified, and age estimates for 66 late Eocene through Quaternary microfossil datums have been extrapolated from age-vs.-depth plots constructed from 63 datums with direct and/or indirect ties to paleomagnetic stratigraphy.
An addendum presents an alternative biostratigraphic time scale for the middle and late Miocene based on a correlation of paleomagnetic Anomaly 5 with paleomagnetic Chron 11.
Related to:
Keller, Gerta (1983): Biochronology and paleoclimatic implications of Middle Eocene to Oligocene planktic foraminiferal faunas. Marine Micropaleontology, 7(6), 463-486, https://doi.org/10.1016/0377-8398(83)90011-7
Keller, Gerta; Barron, John A (1983): Paleoceanographic implications of Miocene deep-sea hiatuses. Geological Society of America Bulletin, 94(5), 590-613, https://doi.org/10.1130/0016-7606(1983)94%3C590:PIOMDH%3E2.0.CO;2
Kennett, James P; Houtz, Robert E; Andrews, Peter B; Edwards, Anthony R; Gostin, Victor A; Hajos, Marta; Hampton, Monty A; Jenkins, D Graham; Margolis, Stanley V; Ovenshine, A Thomas; Perch-Nielsen, Katharina (1975): Cenozoic paleoceanography in the Southwest Pacific Ocean, Antarctic Glaciation, and the development of the circumantarctic current. In: Kennett, JP; Houtz, RE; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 29, 1155-1169, https://doi.org/10.2973/dsdp.proc.29.144.1975
Osborn, Noel I; Ciesielski, Paul F; Ledbetter, Michael T (1983): Disconformities and paleoceanography in the southeast Indian Ocean during the past 5.4 million years. Bulletin of the Geological Society of America, 94(11), 1345-1358, https://doi.org/10.1130/0016-7606(1983)94%3C1345:DAPITS%3E2.0.CO;2
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 3.519067 * Median Longitude: -133.891900 * South-bound Latitude: 0.498500 * West-bound Longitude: -135.036000 * North-bound Latitude: 5.850000 * East-bound Longitude: -133.309500
Date/Time Start: 1982-04-02T00:00:00 * Date/Time End: 1982-04-21T00:00:00
Minimum DEPTH, sediment/rock: 5 m * Maximum DEPTH, sediment/rock: 525 m
Event(s):
85-573_Site * Latitude: 0.498500 * Longitude: -133.309500 * Date/Time: 1982-04-02T00:00:00 * Elevation: -4301.0 m * Penetration: 7.453 m * Recovery: 4.926 m * Location: North Pacific/TROUGH * Campaign: Leg85 * Basis: Glomar Challenger * Method/Device: Composite Core (COMPCORE) * Comment: 68 cores; 601.8 m cored; 0 m drilled; 81.9% recovery
85-574_Site * Latitude: 4.208700 * Longitude: -133.330200 * Date/Time: 1982-04-11T00:00:00 * Elevation: -4561.0 m * Penetration: 11.197 m * Recovery: 5.949 m * Location: North Pacific/TROUGH * Campaign: Leg85 * Basis: Glomar Challenger * Method/Device: Composite Core (COMPCORE) * Comment: 92 cores; 734.2 m cored; 0 m drilled; 81% recovery
85-575_Site * Latitude: 5.850000 * Longitude: -135.036000 * Date/Time: 1982-04-21T00:00:00 * Elevation: -4536.0 m * Penetration: 4.418 m * Recovery: 3.75 m * Location: North Pacific/FLANK * Campaign: Leg85 * Basis: Glomar Challenger * Method/Device: Composite Core (COMPCORE) * Comment: 60 cores; 374.5 m cored; 0 m drilled; 100.1% recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Latitude of event | Latitude | ||||
| 3 | Longitude of event | Longitude | ||||
| 4 | Elevation of event | Elevation | m | |||
| 5 | DEPTH, sediment/rock | Depth sed | m | Geocode – mbsf | ||
| 6 | Depth, top/min | Depth top | m | Barron, John A | ||
| 7 | Depth, bottom/max | Depth bot | m | Barron, John A | ||
| 8 | Age, minimum/young | Age min | ka | Barron, John A | ||
| 9 | Age, maximum/old | Age max | ka | Barron, John A | ||
| 10 | AGE | Age | ka BP | Geocode | ||
| 11 | Hiatus | Hiatus | Barron, John A | |||
| 12 | Parameter | Parameter | Barron, John A | Lithologic change | ||
| 13 | Hiatus | Hiatus | Barron, John A | Recorded elsewhere | ||
| 14 | Reference/source | Reference | Barron, John A | Recorded elsewhere |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
76 data points
Data
| 1 Event | 2 Latitude | 3 Longitude | 4 Elevation [m] | 5 Depth sed [m] (mbsf) | 6 Depth top [m] | 7 Depth bot [m] | 8 Age min [ka] | 9 Age max [ka] | 10 Age [ka BP] | 11 Hiatus | 12 Parameter (Lithologic change) | 13 Hiatus (Recorded elsewhere) | 14 Reference (Recorded elsewhere) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 85-573_Site | 0.4985 | -133.3095 | -4301 | 76 | 4600 | 5100 | 4850 | Yes ? | Yes | NH7 | Keller and Barron (1983) | ||
| 85-573_Site | 0.4985 | -133.3095 | -4301 | 158 | 9800 | 10500 | 10150 | Yes | Yes | NH5 | Keller and Barron (1983) | ||
| 85-573_Site | 0.4985 | -133.3095 | -4301 | 177 | 11500 | 12000 | 11750 | Yes | No | NH4 | Keller and Barron (1983) | ||
| 85-573_Site | 0.4985 | -133.3095 | -4301 | 187 | 12300 | 12700 | 12500 | Yes? or compressed | No | NH3? | Keller and Barron (1983) | ||
| 85-573_Site | 0.4985 | -133.3095 | -4301 | 272 | 18200 | 19700 | 18950 | Yes | Yes, downhole change in diatom preservation | NH1b | Keller and Barron (1983) | ||
| 85-573_Site | 0.4985 | -133.3095 | -4301 | 290 | 20500 | 21500 | 21000 | Yes | Yes | NH1a | Keller and Barron (1983) | ||
| 85-573_Site | 0.4985 | -133.3095 | -4301 | 328 | 22700 | 24000 | 23350 | Yes | No | PH | Keller and Barron (1983) | ||
| 85-573_Site | 0.4985 | -133.3095 | -4301 | 398 | 392 | 404 | 28700 | 32000 | 30350 | No, compressed | No | Keller (1983a) | |
| 85-573_Site | 0.4985 | -133.3095 | -4301 | 525 | 36800 | 37300 | 37050 | Yes | Yes | Kennett et al. (1975) | |||
| 85-574_Site | 4.2087 | -133.3302 | -4561 | 5 | 600 | 1000 | 800 | Yes | Yes? | ||||
| 85-574_Site | 4.2087 | -133.3302 | -4561 | 70 | 9800 | 11100 | 10450 | Yes | Yes | NH5 | Keller and Barron (1983) | ||
| 85-575_Site | 5.8500 | -135.0360 | -4536 | 8 | 3400 | 5100 | 4250 | Yes | No | NH7 | Keller and Barron (1983), Osborn et al. (1983) | ||
| 85-575_Site | 5.8500 | -135.0360 | -4536 | 26 | 8800 | 10500 | 9650 | Yes | No | NH5 | Keller and Barron (1983) |