Figure F25. Raw APCT tool data for estimating in situ temperatures. Only the portion of data immediately before, during, and immediately after penetration of the probe into the subsurface is shown. For an example of the entire temperature history of a deployment, see "Downhole Tools and Pressure Coring" in the "Explanatory Notes" chapter. The ODP core identification number associated with each run of the APCT tool is indicated in the upper left corner of the graph. The measurement depth, mudline temperature, extrapolated in situ temperature estimate, and measured thermal conductivity used for the extrapolation are also shown.