Hole summary

Report lists hole data: location, water depth, drilling, coring system, and core recovery.

Data File format

    Exp: expedition number
    Site: site number
    Hole: hole number
    Latitude: hole latitude
    Longitude: hole longitude
    Water depth (m): the distance from sea level to the seafloor.
    Penetration DSF (m): total penetration of all cored intervals and drilled intervals. Does not include ghost cores and wash cores.
    Cored interval (m): observed advancement of the drill string during coring. Does not include ghost cores, wash cores, or drilled intervals.
    Recovered length (m): core length measured on the catwalk (sum of section lengths as observed on the catwalk).
    Recovery (%): recovered length/cored interval * 100. Does not include ghost cores, wash cores, or drilled intervals.
    Drilled interval (m): drill string advanced without coring to deepen a hole.
    Drilled interval (no.): number of drill string advancements to deepen the hole (but not intended to recover core).
    Total cores (no.): number of cores that resulted in curated core material. Count does not include ghost cores, wash cores, or drilled intervals.
    APC cores (no.): number of cores collected with the advanced piston corer (H).
    HLAPC cores (no.): number of cores collected with the half-length advanced piston corer (F).
    XCB cores (no.): number of cores collected with the extended core barrel (X).
    RCB cores (no.): number of cores collected with the rotary core barrel (R).
    Other cores (no.): number of cores collected with other tools (e.g., ghost [G], wash [W], pressure [P]).
    Date started (UTC): date and time of beginning of activities on this hole as specified by the operations superintendent.
    Date finished (UTC): date and time of completion of activities on this hole as specified by the operations superintendent.
    Time on hole (days): date finished - date started. Presented as decimal days. May include gaps in operations.
    Comments: information provided by the operations superintendent.