1 / 13

Logs for interpretation practice

This document outlines a structured approach to log interpretation for analyzing geomorphic settings related to sedimentation, with a focus on earthquake evidence. Logs should record essential details such as the location and type of evidence, the quality assessment (poor, fair, good), the number of earthquakes, and their respective qualities. Additionally, it encourages speculation on paleoslip and magnitude. Notable evidence includes the North Frontal thrust fault identified in trenching through young alluvium, showcasing Holocene activity supported by radiocarbon dating.

orrick
Download Presentation

Logs for interpretation practice

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Logs for interpretation practice Things to record for each log: Interpretation of geomorphic setting of sedimentation overall Each piece of evidence for an earthquake: -location -type of evidence -quality (poor, fair, good) 3) Number of earthquakes and the quality of each 4) Speculation about paleoslip/magnitude

  2. http://www.esp.geos.vt.edu/spotila/js-nfts.html Photo of the North Frontal thrust fault exposed in a trench through young alluvium. The 1.7 m dip-slip offset of a carbonate paleosol horizon is readily visible. This offset must postdate the age of detrital charcoal retreived from the hanging-wall one meter left of the tape measure, which we have dated with radiocarbon as 9.7 Ka. This demonstrates Holocene activity along the North Frontal thrust system.

  3. http://www.geology.cwu.edu/facstaff/charlier/currentprojects/los_angeles_sum.htmlhttp://www.geology.cwu.edu/facstaff/charlier/currentprojects/los_angeles_sum.html

  4. SW T4 NW Wall NE 0 1 m

  5. Scharer, et al., 2007

  6. Scharer, et al., 2007

  7. Scharer, et al., 2007

More Related