georefid:2007-054598georefid:2007-054595SEDIS 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/odp.proc.sr.206.004.2006<gco:CharacterString>Reoriented structures in the East Pacific Rise basaltic crust from ODP Hole 1256D, Leg 206; integration of core measurements and electrical-acoustic images</gco:CharacterString>2006-01-01publicationgeorefid:2007-054598doi:10.2973/odp.proc.sr.206.004.2006Tartarotti, PaolaUniversita di Milano, Dipartimento di Scienze della Terra, Milan, ItalyauthorCrispini, LauraUniversity of California Santa Barbara, United StatesauthorEinaudi, FlorenceOcean Drilling Program, United StatesauthorCampari, E.University of Michigan, United StatesauthorTexas A&M University, Ocean Drilling Program, College Station, TX, United StatespublisherdocumentDigitalIn: Teagle, Damon A. H., Wilson, Douglas S., Acton, Gary D., Alt, Jeffrey C., Banerjee, Neil R., Barr, Samantha R., Coggon, Rosalind M., Cooper, Kari M., Crispini, Laura, Einaudi, Florence, Jiang, Shijun, Kalberkamp, Ulrich, Kerneklian, Marcie, Laverne, Christine, Nichols, Holly J., Sandwell, Rachel, Tartarotti, Paola, Umino, Susumu, Ziegler, Christa, Proceedings of the Ocean Drilling Program; scientific results; an in situ section of upper oceanic crust formed by superfast seafloor spreading; covering Leg 206 of the cruises of the drilling vessel JOIDES Resolution; Balboa, Panama, to Balboa, Panama; Site 1256; 6 November 2002-4 January 2003206Brittle structures (open fractures and veins) from basaltic oceanic crust drilled at Ocean Drilling Program (ODP) Site 1256 (Guatemala Basin, Pacific Ocean) during Leg 206 were reoriented to the geographic coordinates by (1) correlating structures observed on the core with unoriented images of the exterior of the core and (2) correlating core structures and unoriented images with oriented borehole images. The images of the exterior of the core were obtained by scanning whole-core pieces with the Deutsche Montan Technologie Digital Color Core-Scan system. In the unrolled core images, nonhorizontal planar structures (e.g., veins, faults, or fractures) produce sinusoidal-shaped curves. These can be matched to similar-shaped features imaged along the borehole wall. The borehole images were obtained by the Formation MicroScanner (FMS)-sonic (Dipole Sonic Imager) tool string and the Ultrasonic Borehole Imager (UBI). The FMS provides high-resolution electrical resistivity-based images of borehole walls. FMS images are oriented to magnetic north using the General Purpose Inclinometer Tool. This allows the dip and azimuth of geological features intersecting the hole to be measured from the processed FMS image. The UBI features a high-resolution transducer that provides acoustic images of the borehole wall. The UBI was used in hard rocks for the first time in the history of the ODP during Leg 206.completedStructural geologyApplied geophysicsacoustical loggingacoustical methodsbasaltsbrittle deformationCenozoiccorescrustdeformationEast PacificEast Pacific Riseelectrical loggingelectrical methodsFormation MicroScannerfracturesgeophysical methodsGuatemala Basinigneous rocksimageryLeg 206lithostratigraphymeasurementMioceneNeogeneNorth PacificNortheast PacificOcean Drilling Programoceanic crustODP Site 1256orientationPacific OceanQuaternaryTertiaryveinsvolcanic rockswell-loggingurn:org.iodp:exp:206urnlargerWorkCitationcampaignurn:org.iodp:exp:206:site:1256urnlargerWorkCitationstudyurn:org.iodp:exp:206urnlargerWorkCitationcampaignEnglishgeoscientificInformation-91.5600-91.56006.44006.4400Data reportapplication/pdfunknownSEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContacthttp://www-odp.tamu.edu/publications/206_SR/VOLUME/CHAPTERS/004.PDFdownload