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Figure F203. Downhole remanence inclination in Hole U1309D (see “Paleomagnetism” for detailed explanations). Column 1 shows average remanent inclinations from archive-half pieces and discrete sample data. Archive-half data represent the highest stability magnetization component (isolated at alternating-field treatments >30–40 mT). For core pieces with multiple measurements, only average inclinations with CSD angles <5° are shown. For discrete samples and core pieces with only a single measurement (open circles), only data with MAD angles <5° are plotted. Column 2 shows expanded version of data in Column 1. Vertical red bar indicates the expected reversed polarity inclination at the site. Five inclination groups (labeled I–V) have been identified based on the inclination data and structural features. Column 3 shows lower stability (typically 20–40 mT) magnetization components from archive-half pieces where no well-defined high-stability magnetization component could be isolated. Selection criteria for piece averages are the same as for data in Column 1. Note that the data in Column 3 are mutually exclusive with data in Column 2 (i.e., only a single magnetization component is plotted for any core piece). Data from Expedition 305 were reprocessed during the first postcruise meeting to ensure compatibility with Expedition 304 data.

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