craton

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cra·ton

(krā′tŏn′)

A large portion of a continental plate that has been relatively undisturbed since the Precambrian Era and includes both shield and platform layers.

[German Kraton, from Greek kratos, power; see kar- in Indo-European roots.]

cra·ton′ic (krə-tŏn′ĭk) adj.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

craton

(ˈkreɪtən)

(Geological Science) geology a stable part of the earth's continental crust or lithosphere that has not been deformed significantly for many millions, even hundreds of millions, of years. See shield⁷

[C20: from Greek kratos strength]

cratonic adj

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

cra•ton

(ˈkreɪ tɒn)

n.

a relatively rigid and immobile region of continental portions of the earth's crust.

[1940–45; < German Kraton, based on Greek krátos power; compare -cracy, -on²]

craton

An ancient part of a continent that has remained undeformed by mountain-building activity.

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Noun

craton - the part of a continent that is stable and forms the central mass of the continent; typically Precambrian

continent - one of the large landmasses of the earth; "there are seven continents"; "pioneers had to cross the continent on foot"

part, piece - a portion of a natural object; "they analyzed the river into three parts"; "he needed a piece of granite"

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References in periodicals archive ?

The low ZTR (Zircon, Tourmaline and Rutile) index values of Bara Formation sediments exhibit cratonic provenance while the high concentration of ultra-stable heavy minerals shows intense chemical weathering.

PROVENANCE OF BARA FORMATION, SOUTHERN INDUS BASIN, PAKISTAN

They found that the underground vibrations, produced from natural processes such as earthquakes and tsunamis, tended to speed up when passing through cratonic roots; the speedup was greater than would be expected from the fact that cratons tend to be colder and less dense than surrounding structures (both of which are conditions that would speed up the waves).

A Stash of a Quadrillion Tons of Diamonds May Be Hiding Deep Inside Earth

The Sichuan Basin is located on the northwestern Yangtze Plateand is the remnant of the lower Paleozoic Upper Yangtze cratonic basin(Lu et al., 2006; Karami et al., 2017).

Influence of Black Shale Composition on Methane Adsorption and Gas Content: Implications For Gas Storage in the Longmaxi Black Shal

These units are low-grade metamorphic, igneous and sedimentary rocks consisting of Middle--Late Proterozoic metamorphic rocks, Late Proterozoic rifted cratonic volcanic arcs and younger Cambrian--Ordovician, Silurian--Early Devonian and Triassic rocks (Uchupi and Bolmer 2008).

Seafloor pockmarks and gas seepages, northwestern Bay of Fundy, New Brunswick, Canada

Wells are located within the Baltic cratonic sedimentary basin, which consists of weakly tectonized sediments (Sliaupa 2016, unpublished report).

Injection-Triggered Occlusion of Flow Pathways in Geothermal Operations

The NE-SW and ENE-WSW directions are correlated with the direction of subduction of the Ntem Complex (cratonic plate) under the Pan-African mobile zone [3].

Mapping of Deep Tectonic Structures of Central and Southern Cameroon by an Interpretation of Surface and Satellite Magnetic Data

In Haljala and Keila times, the epicontinental cratonic sea was still in the temperate climatic zone (at ca 35[degrees] S).

Typology and fossil assemblage of Sandbian (Ordovician) 'baksteenkalk': an erratic silicified limestone of Baltic origin from the northeastern Netherlands and adjacent areas of Germany

Among their topics are experimental results on fractionation of the highly siderophile elements at variable pressures and temperatures during planetary and magmatic differentiation, nucleosynthetic isotope variations of siderophile and chalcophile elements in the solar system, the distribution and processing of highly siderophile elements in cratonic mantle lithosphere, chalcophile and siderophile elements in mantle rocks: trace elements controlled by trace minerals, petrogenesis of the platinum-group minerals, and highly siderophile and strongly chalcophile elements in magmatic ore deposits.

Highly Siderophile and Strongly Chalcophile Elements in High-Temperature Geochemistry and Cosmochemistry

and Winfree, K.E., 1986, Aeolian to Marine Transition in Cambro-Ordovician Cratonic Sheet Sandstones of the Northern Mississippi Valley, U.S.A., Sedimentology, v.

Frac sand sources in the United States

Carbonate mineral saturation state and cratonic limestone accumulation.

Saturacion del carbonato de calcio en un area de cultivo de mitilidos en el Seno Reloncavi, Patagonia Norte, Chile

(2000): The Hf isotope composition of cratonic mantle: LAM-MC-ICPMS analysis of zircon megacrysts in kimberlites.

Zircon U-Pb and Hf isotopic constraints on the genesis of a post-kinematic S-type Variscan tin granite: the Logrosan cupola (Central Iberian Zone)