Before revision: For example, U-Pb zircon ages are generally considered to reflect the time of zircon crystallization at about 750 ° Celsius and zircon is resistant to physical abrasion and chemical weathering.
After revision: For example, U-Pb zircon ages are generally considered to reflect the time of zircon crystallization at about 750 ° C and zircon is resistant to physical abrasion and chemical weathering.