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Related to geochronologic: geochronologist


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 ?
U-Pb geochronologic constraints on the volcanic evolution of the Mira (Avalon) terrane, southeastern Cape Breton Island, Nova Scotia: Canadian Journal of Earth Sciences, 30, pp.
2011) provided an interesting discussion on the geochronologic resolution of conodont biostratigraphy as well as on net accumulation rates in the Baltic Ordovician.
There are three issues resulting from the geochronologic extension of fossil Holometabola to the Pennsylvanian-Mississippian Subperiod boundary or even earlier.
Researchers of University of New Mexico (USA), University of Arizona (USA), and University of Adelaide (Australia) presented results from a detailed geochronologic investigation of one of the oldest rock units of the Grand Canyon, the Vishnu Schist.
Specific topics examined include thermal evolution and exhumation of deep-level batholithic exposures in Sierra Nevada, California; structural controls on middle Cretaceous sedimentation in the Toney Butte area of Ochoco basin, central Oregon; and geochronologic constraints across the Main Central Thrust shear zone in India.
However it is not clear how these units are related to each other because of poor exposure and lack of detailed geochronologic data.
5 permil, permitting more accurate placement of the Revet Member into a global geochronologic framework.
U-Pb geochronologic analyses of sample 180J (sample location UTM = 504124ON and 661740E; zone 20).