absolute age


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absolute age

[′ab·sə‚lüt ′āj]
(geology)
The geologic age of a fossil, or a geologic event or structure expressed in units of time, usually years. Also known as actual age.
References in periodicals archive ?
Some methodological problems exist, however, that may affect the accurate identification of increments and the interpretation of absolute ages in the stylets (Table 1).
If absolute ages for a unit are known either by radiometric measurements of samples or by employing crater-size frequency modeling--rock-stratigraphic (or lithostratigraphic) units can be transferred to time-rock or chronostratigraphic units using chronology models and impact-crater production functions (van Gasselt and Neukum 2011).
The game flowed so much Blackpool substitute Keith Southern had to wait an absolute age on the freezing touchline to come on.
My Racing Post colleague Eddie Fremantle, who can see vast distances from his vantage point of 7ft 9ins, made the point that it took an absolute age for Hughes to pull up the winner, who had almost reached Canford Cliffs in Dorset before being turned round to head back, which suggests that the small matter of winning a Sussex Stakes left this exceptional colt with stacks in reserve.
AT long last we are finally at home again after what seems like an absolute age.
However, a discrepancy relating to the absolute age of the fossils was revealed later when Silurian U-Pb ages were obtained from volcanic rocks elsewhere in the Eastport Formation (Van Wagoner and Dadd 2003).
Another mathematical model, based on age difference data from a study in Gugulethu near Cape Town (M Kamupira, L Myer--unpublished data), pointed out that it is the variance of age differences between an individual and his/her sexual partners rather than the absolute age difference that is responsible for the sustainability of the HIV epidemic in South Africa.
But it failed to keep my attention, especially towards the end which takes an absolute age to arrive.
7 years was used to establish an absolute age chronology, spanning about 1,500 years back in time.
MY friend Julie is a big fan of We Are Scientists, pictured below, and informed me an absolute age ago about this week's Middlesbrough gig at The Empire.
This may be because other confounding mechanisms, such as the impact of school entry laws on the age relative to peers, and the absolute age at which an individual is taught a particular material.
However, if the calibration is to be useful it must have a statement of uncertainty attached to it and this must accurately reflect the true uncertainty in the absolute age estimate generated.