Exact(27)
These ages are relatively old in comparison to ages determined in other studies in southern Alaska and suggest minimal exhumation.
If one or more of these objects also have had their absolute ages determined by using long-lived radionuclides, the relative ages can be converted into absolute ones.
Absolute ages determined for planetary surfaces other than the Moon consequently have large uncertainties relative to the age of the solar system.
Radiocarbon ages determined on soil organic matter from the 3Btg1 and 2A horizons were 5580 to 5320 Cal BP and 2350 to 2320 Cal BP, respectively.
Ages determined by stratigraphic or radiometric methods are as great as 50,000,000 years in western Africa and more than 23,000,000 years in Australia, but duricrust formation is occurring today in some places.
One-way analysis of variance (ANOVA) accompanied by Tukey's multiple comparisons of means at 95% family-wise confidence level was used to detect significant differences of mean fine-root ages determined by both methods, as well as their arithmetical difference, among forest types with different dominant woody plant species.
Similar(33)
The selected pre-aging method was light aging, determined according to a preliminary aging study [19].
younger than the depositional age determined by zircon geochronology.
In the past, talent rather than age determined which American women competed as seniors.
If alteration is evident, the invalid low-temperature age can be eliminated and a valid high-temperature age determined.
Barker, S. & Diz, P. Timing of the descent into the last Ice Age determined by the bipolar seesaw.
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