Manganese deposits encountered during Deep Sea Drilling Project, Leg 29, in subantarctic waters

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doi: 10.2973/dsdp.proc.29.135.1975
Author(s): Margolis, S. V.
Author Affiliation(s): Primary:
Univ. Hawaii, Honolulu, Hawaii, United States
Volume Title: Initial Reports of the Deep Sea Drilling Project
Source: Initial Reports of the Deep Sea Drilling Project, Vol.29, p.1083-1091. Publisher: Texas A & M University, Ocean Drilling Program, College Station, TX, United States. ISSN: 0080-8334 CODEN: IDSDA6
Note: In English; plates, sketch map
Summary: Manganese nodules, micronodules, and crusts were encountered in surface sediments, and at depth, in 6 of the 10 sites drilled during DSDP Leg 29 south of New Zealand and Tasmania. Major concentrations of surface nodule pavements occur on and adjacent to the Campbell Plateau south of New Zealand, south of the Tasman Rise, and in the South Tasman Sea. These deposits are found on top of erosional unconformities, which span tens of millions of years and reflect scouring by strong bottom currents. Micronodules were also found at depth throughout most of these cores. Their occurrence apparently is dependent upon a number of environmental factors.
Year of Publication: 1975
Research Program: DSDP Deep Sea Drilling Project
Key Words: 02 Geochemistry; Abundance; Cenozoic; Concentration; Crusts; Currents; Deep Sea Drilling Project; Environmental analysis; Genesis; Geochemistry; Leg 29; Manganese; Marine geology; Metals; Micronodules; Nodules; Occurrence; Pacific Ocean; Sediments; South Pacific; Southwest; Southwest Pacific; Tasman Sea; Unconformities; West Pacific
Coordinates: S570000 S400000 E1770000 E1430000
Record ID: 1976016988
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data supplied by Institute of Geological and Nuclear Sciences Limited (GNS Science), Lower Hutt, New Zealand