georefid:1976-016988SEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContact2011-06-23T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=10.2973/dsdp.proc.29.135.1975<gco:CharacterString>Manganese deposits encountered during Deep Sea Drilling Project, Leg 29, in subantarctic waters</gco:CharacterString>1975-01-01publicationgeorefid:1976-016988doi:10.2973/dsdp.proc.29.135.1975Margolis, S. V.Univ. Hawaii, Honolulu, Hawaii, United StatesauthorTexas A & M University, Ocean Drilling Program, College Station, TX, United StatespublisherdocumentDigitalInitial Reports of the Deep Sea Drilling Project29 (Lyttleton, N. Z. to Wellington, N. Z.; March-April 1973)1083-1091Manganese 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.completedGeochemistryabundanceCenozoicconcentrationcrustscurrentsDeep Sea Drilling Projectenvironmental analysisgenesisgeochemistryLeg 29manganesemarine geologymetalsmicronodulesnodulesoccurrencePacific OceansedimentsSouth PacificsouthwestSouthwest PacificTasman SeaunconformitiesWest Pacificurn:org.iodp:exp:29urnlargerWorkCitationcampaignEnglishgeoscientificInformation143.0000177.0000-57.0000-30.0000Tasman Seaapplication/pdfunknownSEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContacthttp://deepseadrilling.org/29/volume/dsdp29_35.pdfdownload