Document: NUREG-0800
Document ID: 00d3733d-7b45-4276-8765-54fc5ae522d6
Document Type: srp
Title: .3-3
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0423/ML042390212.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.5
CFR Part: 
CFR Title: 

Content:
thods include correlating the last faulting event with regional 2.5.3-6 Rev. 3 - March 1997 tectonic activity of known ancient age, geomorphic evidence of age, and determining the relationship between the time of the fault rupture event and the ages of marine or fluvial terraces. Geochronological methods are discussed in References 3 and 10. Regulatory Guide 1.165 (Ref. 3) provides brief descriptions and a list of references of state-of-the-art methods and their applications, which can be used to estimate the geochronological history of geological materials associated with faults or other features. In cases such as are described in the previous paragraph, the staff will carry out limited site observations and investigations of its own, for example, examinations of excavations. In some cases, the staff may select samples from shear zones or other materials for subsequent dating and analysis. In past investigations, applicants have often excavated trenches in the areas where major facilities are to be located for in situ testing to reduce the chance of surprises when the construction excavations are made. Subsection 2.5.3.1 Geological. Seismological, and GeoDhysical Investigations. This subsection is evaluated by conducting an independent literature search and cross-comparing the results with the information submitted in the SAR or ESR. The comparison should show that the conclusions presented by the applicant are based on sound data, are consistent with the published reports of experts who have worked in the area, and are consistent with the conclusions of the staff and its advisors or consultants. If the applicant's conclusions and assumptions conflict with the literature, and the staff disagrees with the applicant's analysis and assumptions, additional investigative results to support those conclusions must be submitted to the staff for review. Subsection 2.5.3.2 Geological Evidence, or Absence of Evidence for Surface Deformation. This subsection is evaluated by