Paleomagnetic analysis of the Oligocene to early Miocene sediments of IODP SIte 342-U1406 ...

• Main Authors: van Peer, Tim E, Xuan, Chuang, Lippert, Peter C, Liebrand, Diederik, Agnini, Claudia, Wilson, Paul A
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2017
• Subjects: Drilling/drill rig; Exp342; Joides Resolution; Integrated Ocean Drilling Program / International Ocean Discovery Program IODP; Newfoundland; Northwest Atlantic
• Online Access: https://dx.doi.org/10.1594/pangaea.880978; https://doi.pangaea.de/10.1594/PANGAEA.880978

Fine-grained magnetic particles in deep-sea sediments often statistically align with the ambient magnetic field during (and shortly after) deposition and can therefore record geomagnetic reversals. Correlation of these reversals to a geomagnetic polarity time scale is an important geochronological tool that facilitates precise stratigraphic correlation and dating of geological records globally. Sediments often carry a remanence strong enough for confident identification of polarity reversals, but in some cases a low signal-to-noise ratio prevents the construction of a reliable and robust magnetostratigraphy. Here we implement a data-filtering protocol, which can be integrated with the UPmag software package, to automatically reduce the maximum angular deviation and statistically mask noisy data and outliers deemed unsuitable for magnetostratigraphic interpretation. This protocol thus extracts a clearer signal from weakly magnetized sediments recovered at Integrated Ocean Drilling Program (IODP) Expedition ... : Supplement to: van Peer, Tim E; Xuan, Chuang; Lippert, Peter C; Liebrand, Diederik; Agnini, Claudia; Wilson, Paul A (2017): Extracting a Detailed Magnetostratigraphy From Weakly Magnetized, Oligocene to Early Miocene Sediment Drifts Recovered at IODP Site U1406 (Newfoundland Margin, Northwest Atlantic Ocean). Geochemistry, Geophysics, Geosystems, 18(11), 3910-3928 ...