Please use this identifier to cite or link to this item: https://hdl.handle.net/11681/5986
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dc.contributorArctic Institute of North America.-
dc.contributor.authorRagle, Richard H.-
dc.contributor.authorHansen, B. Lyle.-
dc.contributor.authorGow, A. J. (Anthony Jack)-
dc.contributor.authorPatenaude, Robert W.-
dc.date.accessioned2016-03-21T21:14:30Z-
dc.date.available2016-03-21T21:14:30Z-
dc.date.issued1960-06-
dc.identifier.urihttp://hdl.handle.net/11681/5986-
dc.descriptionTechnical report-
dc.descriptionSummary: Drilling operations and core and drill hole investigations at Little America V in Oct. - Dec. 1958, as well as measurements at Byrd Station in Dec. 1958 are discussed. The hole at Little America V reached 836 ft, and core recovery was 98% of the footage drilled. No saline ice was found in the bottom core, indicating that the bottom ice is melting. In detailed stratigraphic studies made to a depth of 53 m, summer snow deposits were coarse-grained and often associated with icy crusts, ice layers, and glands. Winter deposits were finer-grained, more homogeneous, and lacked the soaked appearance of summer snow. Periods of 2-3 consecutive years at more or less regular intervals of 10-20 yr showed intense ice formation. Layers of foreign material, tentatively identified as volcanic ash, were observed at 172.1 m, 219.4 m, and 222.8 m. The depth-density curve steepened between 20.7 and 36.5 m. If annual precipitation is estimated as 21 cm of water, Little America V rests on about 1225 yr of accumulated snow. Data (some of a preliminary nature) are tabulated and graphed: the depth-density profile to a depth of 53 m, the nature of ice at various depths, spot densities below 53 m, and the annual increments at depth and corresponding water equivalents at Little America V; ice temperature at various depths at both stations; and depth-inclination measurements as well as the diam.-vs.-depth curve at Byrd Station. The future research program at Little America V is outlined.-
dc.publisherU.S. Army Snow, Ice, and Permafrost Research Establishment.-
dc.publisherEngineer Research and Development Center (U.S.)-
dc.relationhttp://acwc.sdp.sirsi.net/client/en_US/search/asset/1022820-
dc.relation.ispartofseriesSIPRE report ; 70.-
dc.rightsApproved for public release; distribution is unlimited.-
dc.sourceThis Digital Resource was created from scans of the Print Resource-
dc.subjectDrilling-
dc.subjectDrill core analysis-
dc.subjectCoring-
dc.subjectIce cores-
dc.subjectIce core analysis-
dc.subjectAntarctica-
dc.subjectLittle America V, Antarctica-
dc.subjectGlaciers-
dc.subjectGlacier ice-
dc.subjectGlaciology-
dc.subjectBoring-
dc.subjectEquipment-
dc.subjectEPOLAR-
dc.titleDeep core drilling in the Ross Ice Shelf, Little America V, Antarctica-
dc.typeReporten_US
Appears in Collections:Technical Report

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