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Figure F10. A. Two types of hollow extruders. Discrete paleomagnetic samples were collected by inserting an extruder into soft sediments and then removing it with sediments inside. Excess sediments from the base of the extruder are trimmed with a spatula and the rest of the sediments are extruded into the sample box. B. Plastic box with arrow molded into its base used for discrete samples (internal volume = 7 cm3).

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