1. Homework Statement
The relative abundance of uranium isotopes in today’s Earth crustal material is:
99.2745% 238U
0.7196% 235U
0.0055% 234U
What were the relative abundances when the Earth was formed 4.6x109 years ago?
2. Homework Equations
t = age = 1/lambda * ln(N/No)
N...
Homework Statement
The relative abundance of uranium isotopes in today’s Earth crustal material is:
99.2745% 238U
0.7196% 235U
0.0055% 234U
What were the relative abundances when the Earth was formed 4.6x109 years ago?
Homework Equations
t = age = 1/lambda * ln(N/No)
N =...