Testarmata, Margaret M; Gose, Wulf A (1984): (Table 1) Components of magnetization at DSDP Hole 77-538A [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.809677, Supplement to: Testarmata, MM; Gose, WA (1984): Paleomagnetism of the Cretaceous/Tertiary boundary, Deep Sea Drilling Project Leg 77, southeastern Gulf of Mexico. In: Buffler, RT; Schlager, W; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 77, 539-543, https://doi.org/10.2973/dsdp.proc.77.121.1984
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Abstract:
At DSDP Sites 536 and 538 in the southeastern Gulf of Mexico, rocks from near the Cretaceous/Tertiary boundary were recovered. The Danian/Maestrichtian samples from Site 536 were stepwise demagnetized in alternating fields up to 400 Oe. Two distinct components of magnetization could be identified, neither of which displays a reversal pattern compatible with the age of the samples. Samples from the Danian section at Site 538 were subjected to a combination of alternating field and thermal demagnetization. Although several reversals are observed, a unique correlation with the magnetic time scale is not possible until the paleontology of the section is better defined.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Latitude: 23.849200 * Longitude: -85.165500
Date/Time Start: 1981-01-14T00:00:00 * Date/Time End: 1981-01-14T00:00:00
Minimum DEPTH, sediment/rock: 179.13 m * Maximum DEPTH, sediment/rock: 181.24 m
Event(s):
77-538A * Latitude: 23.849200 * Longitude: -85.165500 * Date/Time: 1981-01-14T00:00:00 * Elevation: -2742.0 m * Penetration: 332.5 m * Recovery: 137.6 m * Location: Gulf of Mexico/KNOLL * Campaign: Leg77 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 36 cores; 332.5 m cored; 0 m drilled; 41.4 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample code/label | Sample label | Testarmata, Margaret M | DSDP/ODP/IODP sample designation | # = Samples collected postcruise and demagnetized in a different sequence of steps than the original 11 samples | |
| 2 | DEPTH, sediment/rock | Depth sed | m | Geocode – mbsf | ||
| 3 | NRM, Declination | Decl (NRM) | deg | Testarmata, Margaret M | Magnetometer (MAG) | Component 1 |
| 4 | NRM, Inclination | Incl (NRM) | deg | Testarmata, Margaret M | Magnetometer (MAG) | Component 1 |
| 5 | NRM, Declination | Decl (NRM) | deg | Testarmata, Margaret M | Magnetometer (MAG) | Component 2 |
| 6 | NRM, Inclination | Incl (NRM) | deg | Testarmata, Margaret M | Magnetometer (MAG) | Component 2 |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
74 data points