Tl dating definition
Deeds, and other writings, when the date is an impossible one, take effect from the time of deliver; the presumption of law is, that the deed was dated on the day it bears date, unless, as just mentioned, the time is impossible; for example, the 32d day of January. The proper way of dating, is to put the day, month, and year of our Lord; the hour need not be mentioned, unless specially required; an instance of which may be taken from the Pennsylvania Act of the 16th June, 1836, sect.
phosphorescence of certain materials or objects as a result of heating.
Two broad categories of dating or chronometric techniques that archaeologists use are called relative and absolute dating.
Stratigraphy is the oldest of the relative dating methods that archaeologists use to date things.
In all obligations in which no time is designated for their payment, the obligaaion is due affix a date to, appoint the time of, ascerrain the time of, assign a time to, calendar, chronologize, fix the date, fix the time, furnish with a date, mark the time of, note the time of, reckon from some point in time, record, register, rem tempore tribuere, rem tempori adsignare, set the date, time Associated concepts: post date DATE. This word is derived from the Latin datum, because when deeds and agreements were written in that language, immediately before the day, month and year in which they were made, was set down, it was usual to put the word datum, given. All writings ought to bear a date, and in some it is indispensable in order to make them valid, as in policies of insurance; but the date in these instruments is not inserted in the body of the writing because as each subscription makes a separate contract, each underwriter sets down the day, month and year he makes his subscription.
The designation or indication in an instrument of writing, of the time, and usually of the time and place, when and where it was made.
It is caused by pre-irradiation of the material inducing defects which are removed by the heat, the energy released appearing as light: used in archaeological dating Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co.
It is caused by pre-irradiation of the material inducing defects which are removed by the heat, the energy released appearing as light: used in archaeological dating Redwares from Gubbacka's medieval village: regional and inter-regional views on ceramic networks and technology (SEM-EDS)/Punased savinoud keskaegsest Gubbackast: hinnanguid kohalikule ja mittekohalikule keraamikavorgustikule ning tehnoloogiale (SEM-EDS-analuusi pohjal) and its applications, recent advances and opportunities in thermoluminescent dosimeter (TLD) materials, luminescence dating: the basic approach to geochronology, the elastico-mechanoluminescence of thermoluminescent crystals, thermoluminescent phosphors for radiation dosimetry, using the optically stimulated luminescence (OSL) and Nigeria: Nok has more wonders yet for the world: Nok terracotta artwork dating back to 1500 BC, which was discovered in modern-day central Nigeria in the 1940s by a British archaeologist, is now famous the world over. Current research by German archaeological teams on Nok sites covering 240 sq kms northeast of the capital Abuja.
Absolute dating, the ability to attach a specific chronological date to an object or collection of objects, was a breakthrough for archaeologists.
Until the 20th century, with its multiple developments, only relative dates could be determined with any confidence.
For example, since each Roman emperor had his own face stamped on coins during his realm, and dates for emperor's realms are known from historical records, the date a coin was minted may be discerned by identifying the emperor depicted.
Many of the first efforts of archaeology grew out of historical documents--for example, Schliemann looked for Homer's Troy, and Layard went after the Biblical Ninevah--and within the context of a particular site, an object clearly associated with the site and stamped with a date or other identifying clue was perfectly useful. Outside of the context of a single site or society, a coin's date is useless.