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Detrital zircon geochronology

earth science Maturity 11-13

Tiny grains live in the sand.

ZirconUSGOV.jpg
ZirconUSGOV.jpg
They are very strong. They do not break easily. These grains tell us about the past. They show us how old the rocks are. Can you find them in the sand?

38 words
🖼️ Images & Media (10)
File:ZirconUSGOV.jpg
ZirconUSGOV.jpg
File:Fig. 2 - Simple diagram illustrating the formation of igneous zircon, the processes of them becoming detrital zircons and the differences between igneous and detrital zircons.png
Fig. 2 - Simple diagram illustrating the...
File:Zircon Schematic Microscopic Images.png
Zircon Schematic Microscopic Images.png
File:Laser ablation pit on zircon grain.jpg
Laser ablation pit on zircon grain.jpg
File:Zircon crystal system.png
Zircon crystal system.png
File:Global DZ age distribution.png
Global DZ age distribution.png
File:Schemetic diagram for DZ tectonic settings.png
Schemetic diagram for DZ tectonic settings.png
File:CA-DA Convergent Graph.png
CA-DA Convergent Graph.png
File:CA-DA Collisional Graph.png
CA-DA Collisional Graph.png
File:CA-DA Extentional Graph.png
CA-DA Extentional Graph.png
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📚 Content adapted from Wikipedia | Readability: FK 14.8 | Vital Level 5