Log stratigraphy at Hole 1263A. (a) Hole shape and computed gamma ray (CGR), (b) total gamma ray (SGR) and uranium contribution (URA), (c) potassium (FK) and thorium (THO) contributions to natural radioactivity, (d) deep (IDPH), intermediate (IMPH) and shallow (SFLU) resistivities, (e) porosity (APLC) and capture cross-section (SIGF), (f) formation density (RHOM) and photoelectric factor (PEF), (g) Transient temperature down-log and up-log (h) log sub-units, and (i) rescaling of the total gamma ray (SGR) and shallow resistivity (SFLU) logs between 80 and 280 mbsf to better underline the limit between log subunit1a and log subunit1b.