Figure F83. Composite log of the spectral gamma ray logs recorded in Hole 1224F during ODP Leg 200. Track 1: total spectral gamma ray (HSGR, black) and computed gamma ray (HCGR, red). Track 2: contents of potassium (POTA). Track 3: contents of thorium (THOR). Track 4: contents of uranium
(URAN).