Also found in: Medical, Encyclopedia, Wikipedia.
Related to geochronology: geomorphology, Geological time scale


The chronology of the earth's history as determined by geologic events.

ge′o·chron′o·log′ic (-krŏn′ə-lŏj′ĭk), ge′o·chron′o·log′i·cal adj.
ge′o·chron′o·log′i·cal·ly adv.
ge′o·chro·nol′o·gist n.


(Geological Science) the branch of geology concerned with ordering and dating of events in the earth's history, including the origin of the earth itself
geochronological, geochronologic adj


(ˌdʒi oʊ krəˈnɒl ə dʒi)

the chronology of the earth, as based on both absolute and relative methods of age determination.
ge`o•chron`o•log′ic (-ˌkrɒn lˈɒdʒ ɪk) ge`o•chron`o•log′i•cal, adj.
ge`o•chro•nol′o•gist, n.


the branch of geology that describes the past in terms of geologic rather than human time. — geochronologist, n. — geochronologic, geochronological, adj.
See also: Earth
the chronology of the earth as induced from geologic data. — geochronologist, n.geochronologic, geochronological, adj.
See also: Time


earth's history
References in periodicals archive ?
Chemical Geology is an international journal that publishes original research papers on the isotopic and elemental geochemistry and geochronology of the Earth.
Miocene vertebrate geochronology of the west coast of North America.
Established in 1975, the ROM's Jack Satterly Geochronology Lab was the birthplace of high-precision radiometric uranium-lead dating.
Re-Os geochronology of organic rich sediments: an evaluation of organic matter analysis methods // Chem.
210] Pb geochronology had limited geochronology value in this study because of large variations in the rate of supply, which violate assumptions used for dating purposes (Appleby and Oldfield 1978).
Spooner, Environmental Geochemistry and Geochronology, Research School of Earth Sciences, The Australian National University/nigel.
In addition, it conducts research on geochemical, geochronology and biological applications of radionuclides.
Takes multidisciplinary approach that includes archaeology, geochemistry, geochronology, stratigraphy and sedimentology
The research by scientists at the Berkeley Geochronology Center (BGC), the University of California, Berkeley, and universities in the Netherlands and the United Kingdom is an attempt to resolve the issue.