Skip to Main Content
Skip Nav Destination

Quantification of fault-related illite neomineralization in clay gouge allows periods of fault activity to be directly dated, complementing indirect fault dating techniques such as dating synorogenic sedimentation. Detrital “contamination” of gouge is accounted for through the use of illite age analysis, where gouge samples are separated into at least three size fractions, and the proportions of detrital and authigenic illite are determined using illite polytypism (1Md = neoformed, 2M1 = detrital). Size fractions are dated using the 40Ar/39Ar method, representing a significant improvement over earlier methods that relied on K-Ar dating. The percentages of detrital...

You do not currently have access to this chapter.

Figures & Tables




Citing Books via

Related Articles
Close Modal

or Create an Account

Close Modal
Close Modal