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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 ?
They discuss the history of the Plainview site in Texas, the Plainview type assemblage, and what is known about the site and the Plainview style; the stratigraphic, geochronologic, and paleoenvironmental contexts, and the bone and stone assemblage characteristics from Plainview; sites west of the Great Plains with some Plainview affinities, including the Belen style from the Central Rio Grande, southern New Mexico, Trans-Pecos Texas, Chihuahua, the Colorado Plateau of northern Arizona, and Black Rock Concave Base; and numerical analyses of Plainview and morphologically similar assemblages.
An integrative geologic, geochronologic and geochemical study of Gorgona Island, Colombia: Implications for the formation of the Caribbean Large Igneous Province.
Interestingly, land bridges between the continent and some of the islands were formed at least three times during geochronologic periods between the Pliocene and Pleistocene as a result of changes in sea level during ice ages (Dobson and Kawamura 1998), which may have permitted back-and-force movement of animals via the bridges.
Petrographic and geochronologic analogues of the MIS have been reported from northern Madagascar, Seychelles, south India, and Sri Lanka.
2009) Tectonomagmatic evolution of Western Amazonia: Geochemical characterisation and zircon U-Pb geochronologic constraints from the Peruvian Eastern Cordilleran granitoids: Geological Society of America Bulletin, v.
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.
This phenomenon is increasingly recognized in zircon geochronologic studies of airfall volcanic material where some grains are clearly too old to reflect the eruptive event (xenocrysts), but there are others that are more difficult to distinguish from juvenile zircons (e.
In order to asses this problem we need to extend the PSVC to older times, which can be done just by three ways: obtaining new paleomagnetic and geochronologic data of older lava flows of the last few thousands of years; relocating by CVP the already constructed European geomagnetic regional models to the Canary Islands, if it is found that the error introduced by this relocation is generally smaller than the statistical errors affecting the paleomagnetic directions themselves; or using directly the global geomagnetic models extending back into older times for in situ dating in the Canary Islands.