age determination


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age determination

[′āj di‚tər·mə′nā·shən]
(geology)
Identification of the geologic age of a biological or geological specimen by using the methods of dendrochronology or radiometric dating.
References in periodicals archive ?
Contrary to the rings on the shell, the growth increments of the shell hinge ligament of an Iceland scallop can always be produced, making the age determination of every individual possible (Johannessen 1973).
Age determination and some population characteristics of chub (Squalius cephalus L.
EASME wishes to enter into a service contract to produce a validated method for the age determination of hake (Merluccius merluccius) and 2 anglerfish species (Lophius piscatorius and Lophius budegassa), in the north-east Atlantic.
To be viable for an age determination study, a hard structure must form visible, annually-formed growth patterns.
Proceedings of the international workshop on age determination of oceanic pelagic fishes: tunas, billfishes and sharks.
The age was derived using these pulp-to-tooth ARs in the formula for age determination.
Hostetter and Munroe (1993) were also able to justify the assumption that marks on the opercula were deposited annually and, therefore, justify the use of those marks for age determination through marginal increment analysis.
The method of age determination by studying the cranial suture closure has been more commonly used, because skull is the best preserved remains of the recovered skeleton.
The extent of individual variation within and among dental methods assessed for age determination varied considerably for African lions.
Age determination and year-class fluctuation of cisco, Coregonus albula L.
For age determination (see Box A and Table II), [sup.
On the hoof--or paw--the PH has to assess the degree of facial scarring and the mane development to make an accurate age determination.