Figure F61. Summary of natural gamma ray log measurements, Hole U1376A. Note that natural gamma radiation (NGR; measured on whole-round cores) is in counts per second (cps), and all downhole measurements are in gAPI (American Petroleum Institute gamma ray units). Blue zone across figure denotes area of aphyric intrusions in massive nonbrecciated unit. A summary of core recovery and stratigraphic units is provided at far right (see Fig. F10 for explanation of abbreviations and patterns).
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