Figure 67. Deployment of the WSTP at 55.2 mbsf in Hole 897A. A. Observed temperature as a function of time. The temperature at the seafloor has been interpreted as 3.6° as 7.3° 4400 s. The probe was pulled partially or completely out and then reinserted at about 5900 s. 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 points.

Figure 67. Deployment of the WSTP at 55.2 mbsf in Hole 897A. A. Observed temperature as a function of time. The temperature at the seafloor has been interpreted as 3.6° ± 0.1°C, and the in-situ temperature was interpreted as 7.3° ± 0.8°C. The curve does not show a normal decay after initial insertion at about 4400 s. The probe was pulled partially or completely out and then reinserted at about 5900 s. 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 points.