{"refrec":{"BRefID":118840,"RR":"<b>Goldberg, D.; Myers, G.; Iturrino, G.; Grigar, K.; Pettigrew, T.; Mrozewski, S.</b> (2006). Logging-while-coring - new technology from the simultaneous recovery of downhole cores and geophysical measurements, <b><i>in</i></b>: Rothwell, R.G. (Ed.) <i>New techniques in sediment core analysis. Geological Society Special Publication,</i> 267: pp. 219-228","BEntID":113086,"PublicFlag":1,"CheckedFlag":0,"wosflag":null,"vabbflag":null,"RefStringPartII":", <b><i>in</i></b>: Rothwell, R.G. (Ed.) <i>New techniques in sediment core analysis. Geological Society Special Publication,</i> 267: pp. 219-228","DocTypID":17,"DocType":"Book chapters","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Goldberg, D.; Myers, G.; Iturrino, G.; Grigar, K.; Pettigrew, T.; Mrozewski, S.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Goldberg, D. <i>et al.</i>","Englishabstract":"A newly developed logging-while-coring system was deployed during Ocean Drilling Program legs 204 and 209 off the coast of Oregon and near the Mid-Atlantic Ridge. The system consists of two existing devices modified to be used together - a Schlumberger Resistivity-at-the-Bit* tool, and a Texas A&M University wireline-retrieved core barrel and latching tool. The combination allows for precise core-log depth calibration and core orientation within a single borehole, and without a pipe trip. These tests, conducted in clay-bearing sediments (Leg 204) and in crustal peridotite and gabbroic rocks (Leg 209), mark the first simultaneous use of coring and logging-while-drilling technologies. Sediment cores were recovered with 33% recovery, on average, and as high as 68% to 75 m depth below the sea floor. Core recovery in crustal rocks was only 1-2%, however, penetrating to 21 m depth below sea floor, which is attributed to a problem with the core catcher. High-resolution logs were recorded in the downhole tool memory over the entire drilled intervals at both test sites. It is anticipated that logging-while-coring systems will be utilized more routinely where rig time constraints may otherwise preclude coring in difficult drilling environments. 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ISBN 1-86239-210-2. 266 pp. <a href=\"https://dx.doi.org/10.1144/GSL.SP.2006.267\" target=\"_blank\">https://dx.doi.org/10.1144/GSL.SP.2006.267</a>","BRefXtra":null,"BRefXtraRR":null,"SerBRefID":5898,"SerRR":"<b>Hartley, A.J. <i>et al.</i> (Ed.)</b> Geological Society Special Publication. Geological Society of London: Oxford; London; Edinburgh; Boston, Mass.; Carlton, Vic..  ISSN 0305-8719; e-ISSN 2041-4927","StandardTitleSer":"Geological Society Special Publication","ISSN":"0305-8719","AbbrevSer":"Geol. Soc. Lond. Spec. publ.","StandardTitleMon":"New techniques in sediment core analysis","StartPage":219,"Pages":10,"ToPubliDate":null,"BRefBibLvlCode":"MS","SerNotes":null,"AutString":"Rothwell, R.G. 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