Hein, James R; Vanek, Eva (1981): Mineralogy and geochemistry of altered ash, pelagic clay, and a clay vein in basalt from DSDP Leg 62 Holes [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.819484
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Abstract:
Volcanic ash was recovered from lower Aptian to Albian deposits from DSDP Sites 463, 465, and 466; pelagic clay of the upper Pleistocene to Upper Cretaceous was recovered mainly from Site 464, with minor amounts at Sites 465 and 466. We present X-ray-mineralogy data on pelagic clay and altered volcanic ash recovered from the four Leg 62 sites. In addition, two ash samples from Sites 463 and 465, a pelagic clay from Site 464, and a clay vein from the basaltic basement at Site 464 each were analyzed for major, minor, and trace elements. Our purpose is to describe the mineralogy and chemistry of altered ash and pelagic clays, to determine the sources of their parent material, and to delineate the diagenetic history of these clay-rich deposits. Correlation of chemistry and mineralogy of ash and pelagic clay with volcanic rocks suspected to be their parent material is not always straightforward, because weathering and diagenetic alteration caused depletion or enrichment of many elements.
Related to:
Hein, James R; Vanek, Eva (1981): Origin and alteration of volcanic ash and pelagic brown clay, Deep Sea Drilling Project Leg 62, North-Central Pacific. In: Thiede, J; Vallier, TL; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 62, 559-569, https://doi.org/10.2973/dsdp.proc.62.120.1981
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 33.444041 * Median Longitude: 175.602076 * South-bound Latitude: 21.350200 * West-bound Longitude: 173.888800 * North-bound Latitude: 39.860700 * East-bound Longitude: 179.255700
Date/Time Start: 1978-08-02T00:00:00 * Date/Time End: 1978-08-28T00:00:00
Event(s):
62-463 * Latitude: 21.350200 * Longitude: 174.667800 * Date/Time: 1978-08-02T00:00:00 * Elevation: -2525.0 m * Penetration: 822.5 m * Recovery: 305.5 m * Location: North Pacific/SEAMOUNT * Campaign: Leg62 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 92 cores; 820.5 m cored; 0 m drilled; 37.2 % recovery
62-464 * Latitude: 39.860700 * Longitude: 173.888800 * Date/Time: 1978-08-17T00:00:00 * Elevation: -4637.0 m * Penetration: 308.5 m * Recovery: 77.6 m * Location: North Pacific/CONT RISE * Campaign: Leg62 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 34 cores; 308.5 m cored; 0 m drilled; 25.2 % recovery
62-465 * Latitude: 33.820500 * Longitude: 178.919000 * Date/Time: 1978-08-23T00:00:00 * Elevation: -2161.0 m * Penetration: 96 m * Recovery: 44.2 m * Location: North Pacific/CONT RISE * Campaign: Leg62 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 11 cores; 96 m cored; 0 m drilled; 46 % 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
- Hein, JR; Vanek, E (1981): (Table 2) Chemistry of bulk and <1-µm size fractions of altered volcanic ash, clay vein in basalt, and pelagic clay from DSDP Leg 62 Holes. https://doi.org/10.1594/PANGAEA.819478
- Hein, JR; Vanek, E (1981): (Table 1) Mineralogy of altered ash, pelagic clay, and a clay vein in basalt from DSDP Leg 62 Holes. https://doi.org/10.1594/PANGAEA.819476