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Murdmaa, Ivar O; Kazakova, Vera P (1980): Coarse-silt-fraction mineralogy at DSDP Legs 56 and 57 Holes [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.822053, Supplement to: Murdmaa, IO; Kazakova, VP (1980): Coarse-silt-fraction mineralogy of Japan Trench sediments, Deep Sea Drilling Project Legs 56 and 57. In: Scientific Party, Initial Reports of the Deep Sea Drilling Project, 56/57 (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 56-57, 1005-1009, https://doi.org/10.2973/dsdp.proc.5657.135.1980

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Abstract:
Soviet sedimentologists use the term "coarse silt" to denote the size fraction 0.1 to 0.05 mm (50-100 µm). Petelin (1961) has shown that this fraction is most diagnostic for terrigeneous and volcanogenic mineral assemblages and provinces in Recent deep-sea sediments, because of its greatest variability of both heavy and light non-opaque minerals, which may be easily identified by the common immersion method. We believe that the fraction is suitable for mineralogical study of unconsolidated and friable sediments from DSDP cores as well, if the objective is to investigate their source area and transporation tracks. In the case of fine-grained oceanic sediments, mineral composition of the coarse silt does not differ markedly from that of the "coarse fraction" (>62 µm).
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 40.180932 * Median Longitude: 143.947058 * South-bound Latitude: 39.734800 * West-bound Longitude: 143.231700 * North-bound Latitude: 40.629800 * East-bound Longitude: 145.557800
Date/Time Start: 1977-09-12T00:00:00 * Date/Time End: 1977-11-10T00:00:00
Event(s):
56-434 * Latitude: 39.746000 * Longitude: 144.102000 * Date/Time: 1977-09-12T00:00:00 * Elevation: -5986.0 m * Penetration: 301 m * Recovery: 54.2 m * Location: North Pacific/TRENCH * Campaign: Leg56 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 33 cores; 301 m cored; 0 m drilled; 18 % recovery
56-434A * Latitude: 39.746000 * Longitude: 144.102000 * Date/Time: 1977-09-12T00:00:00 * Elevation: -5986.0 m * Penetration: 160.5 m * Recovery: 14.1 m * Location: North Pacific/TRENCH * Campaign: Leg56 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 2 cores; 18 m cored; 0 m drilled; 78.4 % recovery
56-434B * Latitude: 39.747800 * Longitude: 144.101300 * Date/Time: 1977-09-12T00:00:00 * Elevation: -5986.0 m * Penetration: 637.5 m * Recovery: 63.2 m * Location: North Pacific/TRENCH * Campaign: Leg56 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 32 cores; 295.5 m cored; 47.5 m drilled; 21.4 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets

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Datasets listed in this publication series

  1. Murdmaa, IO; Kazakova, VP (1980): (Table 1) Mineralogy of the coarse-silt (0.1-0.05 mm) fraction at DSDP Legs 56 and 57 Holes. https://doi.org/10.1594/PANGAEA.822052
  2. Murdmaa, IO; Kazakova, VP (1980): (Table 2) Non-opaque heavy minerals in coarse (0.1-0.05 mm) fraction at DSDP Leg 56 and 57 Holes. https://doi.org/10.1594/PANGAEA.822050