| 1. | Assigning absolute ages to rock units on Mars is much more problematic.
|
| 2. | This is mainly because absolute age dating is not precise enough at present.
|
| 3. | Several factors complicate simple correlation of obsidian hydration band thickness with absolute age.
|
| 4. | Absolute ages determined by crater density should therefore be taken with some skepticism.
|
| 5. | The absolute age of each layer of sediment can be dated by radiocarbon methods.
|
| 6. | In absolute age it covers the time span 33.75 to 32.5 million years BP.
|
| 7. | Uranium-lead radiometric dating involves using Uranium-235 or Uranium-238 to date a substance's absolute age.
|
| 8. | Dal Sasso & Maganuco have tried to determine the absolute age of the hatchling.
|
| 9. | Absolute ages derived from crater frequency measurements are model-dependent.
|
| 10. | By using stratigraphic principles, absolute ages in geologic time.
|
