[Rockhounds] Uranium-Lead zircon dating: the good, the bad, and the ugly

[Paul]

The Virtual Seminars in Precambrian Geology youtube 
( https://www.youtube.com/channel/UC-mxePnmA2Lchjn_gm7O06g )
channel currently has two online (Youtube) lectures
about Uranium-Lead dating techniques. These lectures 
provide the "...basics and an outline for..." Uranium-Lead 
dating: "... the goods and bads, the advantages and drawbacks, 
challenges, good and bad practices.  They are:

ID-TIMS and LA-ICPMS U-Pb dating of zircon: 
Advances, advantages, challenges and limitations compared
by Dr. Urs Schaltegger, University of Geneva
https://www.youtube.com/watch?v=epeqxnYq4Ks

When old ages grow old: Legacy U-Pb age data in 
Precambrian research, their utility, comparability and
 limitations by Dr. Jahandar Ramezani
Massachusetts Institute of Technology
https://www.youtube.com/watch?v=9zt2qEDWVcs

Yours,

Paul H.