Track 1 contains the X & Y calipers, track 2 contains the GR and SP, track 3 contains the DIMSFL resistivities, track 4 contains the BHC inverted to velocity, and track 5 contains the FDC & CNL.
The reservoir starts at about 760 ft. At that depth, the resistivities, GR, and BHC velocity all drop and the FDC/CNL overplot switches to a clay type cross-over.
The interpretation is that the fractured vesicular basalt reservoir rock has been leached by the geothermal fluids, resulting in argillic alteration of the basalt.
There is also an approximately -60 mv SP anomaly. This was due to the fact that the well was logged while pumping 1,600 BPD water down the "kill line" to cool the well so that conventional, or non-hostile environment logs (HEL), could be run. This very high water input, resulted in a large streaming potential build up across the filter cake opposite the reservoir.