Age Model of ODP Site 145-887

• Main Authors: Novak, Joseph B, Caballero-Gill, Rocio P, Rose, Rebecca, Herbert, Timothy D, Dowsett, Harry J
• Format: Dataset
• Language: English
• Published: PANGAEA
• Subjects: 145-887A; 145-887C; AGE; Age model; Alkenones; Analytical method; Benthic foraminifera assemblages; benthic foraminiferal stable isotopes; Calcium Carbonate content; Calculated; Comment; Composite splice; Datum/event; DEPTH; sediment/rock; diatoms; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Hole; Joides Resolution; Leg145; North Pacific Ocean; Ocean Drilling Program; ODP; ODP 883; ODP 887; Sample code/label; Sedimentation rate; stable carbon isotopes δ13C; stable oxygen isotopes; Subarctic North Pacific; Uk'37 sst and C37total; Pacific; Subarctic
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.967344

Here we present a new astronomically tuned age model for ODP site 887. Age control points established by correlation of GRAPE WBD at site 887 to our site 883 composite and the excellent shipboard magnetostratigraphic age model, with reversal depths updated to fit the new composite section. Where paleomagnetic polarity reversals were recorded in sediments from both 887A and 887C, the mean composite depth of the reversal was used for the age model. In all cases, the discrepancy of the paleomagnetic reversals in composite depth between 887A and 887C was approximately the same as the sampling interval of the magnetic inclination measurements (10 cm).