Apr
18

Eclogitization and Shear Zone Kinematics: Conclusions

It has been a long research process but an incredibly rewarding one. Below are the conclusions I was able to draw from my results and analyses:

Mar
28

Eclogitization and Shear Zone Kinematics: Paleo-stress Estimates

At this point all of my analyses have been completed, all of my data has been collected, the majority of my thesis is written, the majority of my figures have been created, and I am focusing on preparing for my Southeast GSA conference presentation in a few weeks. I will also be presenting my work…
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Feb
18

Shear Zone Kinematics: Displacement and Vorticity Numbers

Recently I have been making calculations to estimate the displacement along Shear Zone 2 (SZ2). This requires integrating the shear strain across the width of the zone and accounting for the vorticity number for a particular sample, or more generally, the average vorticity number for the shear zone. Shear strain is the ratio of length…
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Jan
20

Eclogitization and Shear Zone Kinematics: Microprobe and EBSD Analyses in Process

Three of the thin section chips have been sent off to be made into polished thin sections, and with these I will be able to complete an electron microprobe analysis and an Electron Backscatter Diffraction (EBSD) analysis. The microprobe analysis will be able to tell me the specific mineral chemistry of particular grains in my…
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Dec
19

Eclogitization in the Lofoten Islands: Petrology-based Hypothesis

As I continue with my analyses, I have had to split my time between my structural analyses and my petrologic analyses. In the case of the structural component, as a reminder, I am trying to quantify the kinematics of my shear zones’ burial and exhumation. In regards to the petrology, I am looking for distinct…
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