This reflection might indicate high fluid pressures and perhaps physical dilation and hydrofractures. All logs are of excellent quality except neutron porosity.
High quality is due to an in-gauge hole.
Ninety-eight percent of the hole had differential caliper measurement of less than 1 in, below which density measurements are reliable. Traditional visual and multivariate statistical analyses of the logs define eight log units. Because Site 1045 was never cored, we inferred lithology from log properties and seismic correlation. These curves are inverted along two thrust faults that can be identified in the seismic reflection data and at several other depths in the logs where no structures are resolved seismically. We believe that thrust imbrication of a low permeability clay-rich section has hindered consolidation.