Pechersky, D M; Tikhonov, L V; Pertsev, Nikolay N (1983): (Table 1) Magnetic properties of basalt samples, at DSDP Legs 69 and 70 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.816634, Supplement to: Pechersky, DM et al. (1983): Magnetic properties of basalts, Deep Sea Drilling Project Legs 69 and 70. In: Cann, JR; Langseth, MG; Honnorez, J; Von Herzen, RP; White, SM; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 69, 705-710, https://doi.org/10.2973/dsdp.proc.69.145.1983
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
We studied magnetic properties of basalts from cores of Sites 504 (mainly Hole 504B) and 505. According to magnetic and petrographic data, the basalts are altered to different degrees. We determined the ratio Ist/Iso and the Curie points of the basalts. In Hole 504B there is vertical zoning of titanomagnetite alteration: in the upper part of the basement, low temperature titanomaghemitization predominates (IST/Iso > 1); in the lower part of the hole, multi-phase alteration (IST/Iso < 1) predominates. This is evidence for superimposition of multi-phase alteration after single-phase oxidation. The latter process occurred at low temperatures. Multi-phase alteration is represented by exsolution and unmixing of titanomagnetite. Its appearance is connected with extended secondary heating at temperatures of about 100°C, documented by thermal measurements in the hole. Magnetic properties of basalts from Site 505 are typical of submarine pillow lavas that contain fine-grained titanomaghemite.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 1.503560 * Median Longitude: -83.754200 * South-bound Latitude: 1.226800 * West-bound Longitude: -83.790000 * North-bound Latitude: 1.920000 * East-bound Longitude: -83.730000
Date/Time Start: 1979-09-24T00:00:00 * Date/Time End: 1979-12-04T00:00:00
Minimum Elevation: -3525.0 m * Maximum Elevation: -3458.0 m
Event(s):
69-504A * Latitude: 1.226800 * Longitude: -83.732500 * Date/Time: 1979-09-24T00:00:00 * Elevation: -3458.0 m * Penetration: 277 m * Recovery: 207 m * Campaign: Leg69 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL)
69-504B * Latitude: 1.227200 * Longitude: -83.730200 * Date/Time: 1979-10-07T00:00:00 * Elevation: -3460.0 m * Penetration: 489 m * Recovery: 262 m * Campaign: Leg69 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL)
69-505A * Latitude: 1.916800 * Longitude: -83.790000 * Date/Time: 1979-09-29T00:00:00 * Elevation: -3525.0 m * Penetration: 208.6 m * Recovery: 0.8 m * Location: North Pacific/GRABEN * Campaign: Leg69 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 3 cores; 12.1 m cored; 0 m drilled; 6.6 % 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 | Sample code/label | Sample label | Pechersky, D M | DSDP/ODP/IODP sample designation | ||
| 6 | Susceptibility | Suscept | sensor values | Pechersky, D M | Unit is 10**6 emu | |
| 7 | Natural remanent magnetization | NRM | kemu | Pechersky, D M | ||
| 8 | Koenigsberger ratio | Q-ratio | Oe | Pechersky, D M | ||
| 9 | Coercivity of remanence | Hcr | Oe | Pechersky, D M | ||
| 10 | Median demagnetizing field | MDF | Oe | Pechersky, D M | Of natural remanent magnetisation | |
| 11 | Median demagnetizing field | MDF | Oe | Pechersky, D M | Of remanent saturation magnetization at 20°C | |
| 12 | Saturation magnetization | Js | Gs cm3/g | Pechersky, D M | At 20°C | |
| 13 | Ratio | Ratio | Pechersky, D M | Remanent saturation magnetization at 20 deg C/saturation magnetization at 20 deg C ratio | ||
| 14 | Curie temperature | Curie temp | °C | Pechersky, D M | ||
| 15 | Ratio | Ratio | Pechersky, D M | Saturation magnetization at 20 deg C after heating sample to 600 deg C/saturation magnetization at 20 deg C at t0 |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
868 data points