Brenton Fairey

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Questions related from Brenton Fairey

What would modern lead contamination look like for a detrital zircon sample in a Wetherill or TW plot?

I commonly find that detrital zircon samples analysed by LA-ICP-MS display discordia arrays, in Wetherill space, that plot toward the origin. This implies some form of recent lead loss - a topic...

06 November 2019 1,379 1 View

What major tectonic processes were occurring on the (present) western, south western and north western margins of the Kaapvaal Craton at ca. 620 Ma?

I am trying to establish what may have been driving brines in the lower Transvaal Supergroup rocks at around 620 Ma. Most tectonic activity during this period seems to be too distal (e.g. Damara...

06 May 2016 4,543 10 View

How can I go about hand picking detrital zircons for U/Pb analysis without introducing bias?

I am going to be picking zircons for the first time soon. I have read a lot of literature related to single-zircon LA-ICPMS work for provenance studies. I am concerned about introducing bias when...

14 January 2015 5,009 16 View

Are there any textbooks out there that are the "definitive guide" to geochronology?

I am going to be doing a lot of research involving U-Pb zircon ages as well as Ar-Ar mica ages. So I want to get as clued-up as possible before I undertake any instrument/analytical training....

05 February 2014 3,502 11 View