Analyzed Sediment Core and Log Data from the Cascadia Subduction Zone

19 sediment cores from the Cascadia Subduction Zone were re-analyzed by Dr. Larry Syu-Heng Lai using automated correlation software. The 269.6 MB repository contains processed age constraints, pairwise core evaluations, and stratigraphic emulation data derived from previously published work by Goldfinger et al. (2012). Data was last updated on April 18, 2026.

Use Cases

• Modeling turbidite event chronologies based on calibrated radiocarbon ages and interpreted bed labels.
• Performing stratigraphic correlation between core pairs based on CT, magnetic susceptibility, and luminescence logs.
• Analyzing sediment unit clusters based on depth, thickness, and mud-cap/turbidite fractions.
• Evaluating alternative age-constraint scenarios using normalized dynamic time warping and correlation coefficient statistics.

Strengths

• Includes data for 19 specific sediment cores identified by their cruise and core IDs.
• Age constraints are calibrated using established models (calib502, calib810) and link to published studies.
• Pairwise core evaluation outputs include diagnostics for multiple log modality combinations.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data is a re-analysis of a specific prior study (Goldfinger et al., 2012), not original collection.

Provenance

Source

Re-analysis of sediment cores and geophysical logs from Goldfinger et al. (2012) USGS study.

Collection Method

Automated stratigraphic correlation using the pyCoreRelator software on previously published core and log data.

Time Range

Covers paleoseismic events inferred from turbidite beds; specific temporal range not stated.

Freshness

Last updated 2026-04 18 19:46:03

Geography

Cascadia Subduction Zone, with cores from specific submarine canyon systems.