Logging data are measurements of physical properties of the formation surrounding a borehole, acquired in situ after completion of coring (wireline logging) or during drilling (Logging-While-Drilling,
This data set was acquired with a ship-based Echosounder Sonar during Eltanin expedition ELT15 conducted in 1964 (Chief Scientist: Dr. George R. Toney). These data files are of MGD77 format and includ