Knox, Robert W OB (1985): (Table 1) Geochemistry of upper Paleocene and upper Eocene glass particles at DSDP Hole 80-549 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.807807, Supplement to: Knox, RWOB (1985): Stratigraphic significance of volcanic ash in Paleocene and Eocene sediments at Sites 549 and 550. In: De Graciansky, PC; Poag, CW; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Gov. Printing Office), 80, 845-850, https://doi.org/10.2973/dsdp.proc.80.134.1985
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Abstract:
Two ash horizons have been identified in Hole 549, one in the upper Paleocene (basal NP9), the other in the upper Eocene (NP18); both are mixed lithic crystal tuffs of rhyolitic composition. These tuffs are absent in Hole 550 owing to unconformities, but the basal Eocene (NP10) of Hole 550 includes a series of over 50 thin bentonite layers. Intermediate plagioclase associated with these bentonites indicates that the original ash was of basaltic to andesitic composition. The bentonites are absent in Hole 549, probably because of an unconformity, but they have been identified in Hole 401 (Leg 48, Bay of Biscay). Two of the pyroclastic phases can be matched with phases previously reported for the North Sea Basin. The bentonites of Site 550 are probably equivalent to the widespread "ash series" of northwestern Europe, which may therefore be regarded as being lower Eocene in terms of Martini's calcareous nannoplankton zonation.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Latitude: 49.088000 * Longitude: -13.098000
Date/Time Start: 1981-06-15T00:00:00 * Date/Time End: 1981-06-15T00:00:00
Minimum Elevation: -2515.0 m * Maximum Elevation: -2515.0 m
Event(s):
80-549 * Latitude: 49.088000 * Longitude: -13.098000 * Date/Time: 1981-06-15T00:00:00 * Elevation: -2515.0 m * Penetration: 1001.5 m * Recovery: 370 m * Location: North Atlantic/SPUR * Campaign: Leg80 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 91 cores; 759.5 m cored; 53 m drilled; 48.7 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample code/label | Sample label | Knox, Robert W OB | DSDP/ODP/IODP sample designation | ||
| 2 | Epoch | Epoch | Knox, Robert W OB | |||
| 3 | Silicon dioxide | SiO2 | % | Knox, Robert W OB | Electron microprobe (EMP) | |
| 4 | Aluminium oxide | Al2O3 | % | Knox, Robert W OB | Electron microprobe (EMP) | |
| 5 | Iron oxide, FeO | FeO | % | Knox, Robert W OB | Electron microprobe (EMP) | |
| 6 | Titanium dioxide | TiO2 | % | Knox, Robert W OB | Electron microprobe (EMP) | |
| 7 | Manganese oxide | MnO | % | Knox, Robert W OB | Electron microprobe (EMP) | |
| 8 | Magnesium oxide | MgO | % | Knox, Robert W OB | Electron microprobe (EMP) | |
| 9 | Calcium oxide | CaO | % | Knox, Robert W OB | Electron microprobe (EMP) | |
| 10 | Sodium oxide | Na2O | % | Knox, Robert W OB | Electron microprobe (EMP) | |
| 11 | Potassium oxide | K2O | % | Knox, Robert W OB | Electron microprobe (EMP) |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
22 data points