Figure 49. WSTP deployment at 170.6 mbsf in Hole 900A. A. Observed temperature as a function of time. The bottom-water temperature has been interpreted to be 3.8 ± 0.1 °C, and the in-situ temperature has been interpreted to be 12.2 ± 0.1°C. The insertion time used for curve fitting is indicated by arrow a. The portion of the temperature data used in the extrapolation is between arrows b and c. B. Observed temperature plotted vs. Bullard's "F" function (Bullard, 1954). The quality of the temperature extrapolation is reflected in the linearity of the plotted data.