Cosmogenic

There’s nothing notable about plate tectonics other than that it’s one of the more mind-bogglingly fascinating, cosmogenic concepts on the face of the earth, a face literally changing every moment but for our naturally narrowed perspective of time.

By convention, these reaction-products are not termed "nucleogenic" nuclides, but rather cosmogenic nuclides.

Cosmic rays continue to produce new elements on Earth by the same cosmogenic processes discussed above that produce primordial beryllium and boron.

Graph showing proxies of solar activity, including changes in sunspot number and cosmogenic isotope production.

In addition, isotopic analysis of exposed terrestrial rocks has demonstrated the cosmogenic (cosmic ray) production of 21 Ne.

Optically stimulated luminescence and cosmogenic radionucleide dating are used to date surfaces and/or erosion rates.

Origin Natural On Earth, naturally occurring radionuclides fall into three categories: primordial radionuclides, secondary radionuclides, and cosmogenic radionuclides.

The mainAr activity in the atmosphere is maintained by cosmogenic production through mainAr (n,2n) mainAr and similar reactions.

The myths and oral literature formed the cosmogenic view of the world of the indigenous people.

This is one of the indicators of past activity at nuclear weapon test sites. citation The isotope 7 Be (half-life 53 days) is also cosmogenic, and shows an atmospheric abundance linked to sunspots, much like 10 Be.

Timeline Periodic table showing the cosmogenic origin of each element.

When going further back in time, one has to rely on irradiance reconstructions, using sunspots for the past 400 years or cosmogenic radionuclides for going back 10,000 years.