Tucker, Peter (1984): Magnetic remanence acquisition in DSDP Leg 73 Holes [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.811134, Supplement to: Tucker, P (1984): Magnetic remanence acquisition in Leg 73 sediments. In: Hsü, KJ; LaBrecque, JL; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 73, 663-672, https://doi.org/10.2973/dsdp.proc.73.128.1984
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Published: 1984 (exact date unknown) • DOI registered: 2013-06-05
Abstract:
The major magnetic mineral in the turbidites and slumped sediments recovered at Leg 73 drill sites was near to magnetite in composition and in the form of small multidomain particles. There was no variation in magnetic mineralogy with the lithology. The variations in the intensities and directions of the natural remanent magnetization could be explained in terms of postdepositional grain rotations within the wet sediment. In the sands realignment was partial, whereas in some of the slumps the entire remanent magnetization was reset. Fine-particle magnetite was also the main magnetic constituent of the red clays. A significant proportion of a higher-coercivity mineral was also present. The magnetic characteristics of the red clays are explained as a combination of concentration and grain rotation effects. The implications to the assessment of the reliability of paleomagnetic data are discussed. Note: Conversion factors are as follows: 1 Am**2/kg = 1 emu/g, and 80 A/m about 1 Oe.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: -27.289300 * Median Longitude: -6.747520 * South-bound Latitude: -29.484200 * West-bound Longitude: -11.666200 * North-bound Latitude: -26.136700 * East-bound Longitude: 3.512300
Date/Time Start: 1980-04-22T00:00:00 * Date/Time End: 1980-05-21T00:00:00
Event(s):
73-519 * Latitude: -26.136700 * Longitude: -11.666200 * Date/Time: 1980-04-22T00:00:00 * Elevation: -3769.0 m * Penetration: 151.6 m * Recovery: 138.1 m * Location: South Atlantic/RIDGE * Campaign: Leg73 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 37 cores; 151.6 m cored; 0 m drilled; 91.1 % recovery
73-523 * Latitude: -28.552200 * Longitude: -2.251300 * Date/Time: 1980-05-15T00:00:00 * Elevation: -4562.0 m * Penetration: 197.5 m * Recovery: 148.4 m * Location: South Atlantic/PLATEAU * Campaign: Leg73 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 45 cores; 170.5 m cored; 21 m drilled; 87 % recovery
73-524 * Latitude: -29.484200 * Longitude: 3.512300 * Date/Time: 1980-05-21T00:00:00 * Elevation: -4796.0 m * Penetration: 348.5 m * Recovery: 200.3 m * Location: South Atlantic/CANYON * Campaign: Leg73 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 35 cores; 306.5 m cored; 0 m drilled; 65.3 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
5 datasets
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Datasets listed in this publication series
- Tucker, P (1984): (Table 2) Magnetic hysteresis properties at DSDP Hole 73-519. https://doi.org/10.1594/PANGAEA.811130
- Tucker, P (1984): (Table 4) Statistical analysis of magnetization directions before and after magnetic cleaning in an applied field of 8 x 10**3 A/m at DSDP Hole 73-519. https://doi.org/10.1594/PANGAEA.811132
- Tucker, P (1984): (Table 3) Viscous remanent magnetization acquired over 1000 hr. in a field of 21 A/m at DSDP Hole 73-519. https://doi.org/10.1594/PANGAEA.811131
- Tucker, P (1984): (Table 5) The magnetic hysteresis properties of the red clays at DSDP Hole 73-523. https://doi.org/10.1594/PANGAEA.811133
- Tucker, P (1984): (Table 1) The magnetic hysteresis properties of a turbidite sequence at DSDP Hole 73-524. https://doi.org/10.1594/PANGAEA.811129