Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/3793
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dc.contributor.authorallWilson, G. S.; Department of Geology, University of Otago, PO Box 56, Dunedin - New Zealanden
dc.contributor.authorallFlorindo, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.authorallSagnotti, L.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.authorallOhneiser, C.; Department of Geology, University of Otago, PO Box 56, Dunedin - New Zealanden
dc.contributor.authorallthe ANDRILL-MIS Science Team; ANDRILLen
dc.date.accessioned2008-04-17T14:25:53Zen
dc.date.available2008-04-17T14:25:53Zen
dc.date.issued2007en
dc.identifier.urihttp://hdl.handle.net/2122/3793en
dc.description.abstractPreliminary palaeomagnetic data are presented for the AND-1B drill core. A total of 1309 samples were collected from the drill core immediately following recovery and splitting. Natural remanent magnetisation (NRM) and bulk magnetic susceptibility data were determined for all samples using a Molspin spinner magnetometer and Bartington Instruments susceptibility bridge, respectively, immediately after collection. Polarity was determined for the upper 700 m of the drill core from 615 stepwise alternating field (AF) and thermally demagnetized samples with an average sample spacing of ~80 cm between 32 and 240 mbsf and ~2 m between 240 and 700 mbsf. Stepwise demagnetised samples were measured on 2G Enterprises long-core cryogenic magnetometers at the University of Otago and the Istituto di Geofisica e Vulcanologia. A magnetic polarity zonation was constructed for the interval between 32.33 and 700 mbsf, with roughly equal normal and reversed polarity represented. Above 32.33 mbsf, poorly consolidated diamictite strata prevented sample collection. The remaining record was subdivided into 15 magnetozones (8 normal and 7 reversed). Magnetozone boundaries are defined at the midpoint between samples of opposite polarity or by samples with transitional polarity. It was not possible to isolate characteristic remanence (ChRM) directions on orthogonal component plots and hence polarity for several ~10 m intervals in the core. Future work will include determination of a polarity zonation for the lower 585 m of the drill core and halving data spacing between 240 and 700 mbsf.en
dc.language.isoEnglishen
dc.publisher.nameTerra Antarticaen
dc.relation.ispartofTerra Antarticaen
dc.relation.ispartofseries3 / 14 (2007)en
dc.subjectMagnetostratigraphyen
dc.subjectANDRILLen
dc.subjectAntarcticaen
dc.titlePaleomagnetism of the AND-1B Core, ANDRILL McMurdo Ice Shelf Project, Antarcticaen
dc.typearticleen
dc.description.statusPublisheden
dc.type.QualityControlPeer-revieweden
dc.description.pagenumber289-296en
dc.subject.INGV04. Solid Earth::04.05. Geomagnetism::04.05.06. Paleomagnetismen
dc.description.obiettivoSpecifico2.2. Laboratorio di paleomagnetismoen
dc.description.obiettivoSpecifico3.8. Geofisica per l'ambienteen
dc.description.journalTypeN/A or not JCRen
dc.description.fulltextreserveden
dc.contributor.authorWilson, G. S.en
dc.contributor.authorFlorindo, F.en
dc.contributor.authorSagnotti, L.en
dc.contributor.authorOhneiser, C.en
dc.contributor.authorthe ANDRILL-MIS Science Teamen
dc.contributor.departmentDepartment of Geology, University of Otago, PO Box 56, Dunedin - New Zealanden
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.departmentDepartment of Geology, University of Otago, PO Box 56, Dunedin - New Zealanden
dc.contributor.departmentANDRILLen
item.openairetypearticle-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextrestricted-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
crisitem.author.deptDepartment of Geology, University of Otago, PO Box 56, Dunedin - New Zealand-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione AC, Roma, Italia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia-
crisitem.author.dept0-
crisitem.author.orcid0000-0002-6058-9748-
crisitem.author.orcid0000-0003-3944-201X-
crisitem.author.orcid0000-0002-2781-2522-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.classification.parent04. Solid Earth-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
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