Figure F94 (continued). D. Resistivity from deep (IDPH) and medium (IMPH) induction, and from shallow spherically focused current (SFLU). E. Sonic velocity. F. Grain size from core observations. A carbonate-rich layer at 201-197 mbsf is overlain by a clean radioactive layer extending from 197 to 193 mbsf. The thick clean layer from 234 to 219 mbsf is defined as Unit L2 and corresponds to high sonic velocity and resistivity and to an increase in grain size observed in core.