Apollo 17’s Deep Drill Core 70001/9 δ<sup>15</sup>N Data Indicates A Factor Of 1.7 Increase The Rate Of Regolith Maturation 500 ± 200 Myr Ago Because Of An Increase In Solar Luminosity That Also May Have Triggered The Cambrian Explosion.

Apollo 17’s Deep Drill Core 70001/9 δ¹⁵N Data Indicates A Factor Of 1.7 Increase The Rate Of Regolith Maturation 500 ± 200 Myr Ago Because Of An Increase In Solar Luminosity That Also May Have Triggered The Cambrian Explosion.

Harrison H Schmitt, University of Wisconsin Madison, Department of Engineering Physics, Madison, WI, United States