Tarduno, John A; Sliter, William V; Bralower, Timothy J; McWilliams, Michael; Premoli Silva, Isabella; Ogg, James G (1989): Distribution of abundance of planktic foraminifera and calcareous nannofossils at DSDP Sites 17-167 and 62-463 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.721050
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
New paleomagnetic and paleontologic data from Pacific DSDP Sites 463 and 167 define the magnetic reversals that predate the Cretaceous Normal Polarity Superchron (K-N). Data from Mid-Pacific Mountain Site 463 provide the first definition of polarity chron M0 in the Pacific deep-sea sedimentary record. Foraminiferal biostratigraphy suggests that polarity chron M0 is contained entirely within the lower Aptian Hedbergella similis Zone, in agreement with foraminiferal data from the Italian Southern Alps and Atlantic Ocean. Nannofossil assemblages also suggest an early Aptian age for polarity chron M0, contrary to results from the Italian Umbrian Apennines and Southern Alps, which place polarity chron M0 on the Barremian-Aptian boundary. Biostratigraphic dating discrepancies caused by the time-transgressive, preservational, or provincial nature of paleontological species might be reconciled by the use of magnetostratigraphy, specifically polarity chron M0 which lies close to the Barremian-Aptian boundary.
At Magellan Rise Site 167, five reversed polarity zones are recorded in Hauterivian to Aptian sediments. Correlation with M-anomalies is complicated by synsedimentary and postsedimentary sliding about 25 m.y. after basement formation, producing gaps in, and duplications of, the stratigraphic sequence. The magnitude and timing of such sliding must be addressed when evaluating the stratigraphy of these oceanic-rise environments.
Related to:
Tarduno, John A; Sliter, William V; Bralower, Timothy J; McWilliams, Michael; Premoli Silva, Isabella; Ogg, James G (1989): M-sequence reversals recorded in DSDP sediment cores from the western Mid-Pacific Mountains and Magellan Rise. Geological Society of America Bulletin, 101(10), 1306-1316, https://doi.org/10.1130/0016-7606(1989)101%3C1306:MSRRID%3E2.3.CO;2
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 14.209250 * Median Longitude: 178.921400 * South-bound Latitude: 7.068300 * West-bound Longitude: 174.667800 * North-bound Latitude: 21.350200 * East-bound Longitude: -176.825000
Date/Time Start: 1971-04-23T00:00:00 * Date/Time End: 1978-08-02T00:00:00
Event(s):
17-167 * Latitude: 7.068300 * Longitude: -176.825000 * Date/Time: 1971-04-23T00:00:00 * Elevation: -3176.0 m * Penetration: 1185 m * Recovery: 288.8 m * Location: North Pacific/CONT RISE * Campaign: Leg17 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 78 cores; 699 m cored; 83 m drilled; 41.3 % recovery
62-463 * Latitude: 21.350200 * Longitude: 174.667800 * Date/Time: 1978-08-02T00:00:00 * Elevation: -2525.0 m * Penetration: 822.5 m * Recovery: 305.5 m * Location: North Pacific/SEAMOUNT * Campaign: Leg62 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 92 cores; 820.5 m cored; 0 m drilled; 37.2 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
4 datasets
Download Data
Datasets listed in this publication series
- Tarduno, JA; Sliter, WV; Bralower, TJ et al. (1989): (Figure 2b) Distribution of age indicator species of planktic foraminifera at Site 62-463. https://doi.org/10.1594/PANGAEA.721049
- Tarduno, JA; Sliter, WV; Bralower, TJ et al. (1989): (Figure 2b) Distribution of age indicator species of planktic foraminifera at Site 17-167. https://doi.org/10.1594/PANGAEA.721047
- Tarduno, JA; Sliter, WV; Bralower, TJ et al. (1989): (Figure 3a) Distribution of abundance of calcareous nannofossils at Site 62-463. https://doi.org/10.1594/PANGAEA.721048
- Tarduno, JA; Sliter, WV; Bralower, TJ et al. (1989): (Figure 3b) Distribution of abundance of calcareous nannofossils at Site 17-167. https://doi.org/10.1594/PANGAEA.721046