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As radiometric ages were determined for the shield-like rocks on the continents which were either exposed at the surface, underlay the flat rocks, or were within the interior of the mountain belts, patterns of age intervals were determined. These old rocks have been called the "basement". This has
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been interpreted to mean that the continents had somehow grown by development of rock assemblages with these characteristic age parameters. The expanding continental nuclei are part of the "craton" which consist of both exposed and buried basement rocks.
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and basement rocks. As radiometric ages were determined for the shield-like rocks on the continents which were either exposed at the surface, underlay the flat rocks, or were within the interior of the mountain belts,
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for more information. If an SVG form of this image is available, please upload it and afterwards replace this template with
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This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.
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Major colour change to make conform to
Geologic time scale where possible. Used also some other graphic changes as in
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Major colour change to make conform to
Geologic time scale where possible. Used also some other graphic changes as in
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If the file has been modified from its original state, some details may not fully reflect the modified file.
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The following pages on the
English Knowledge (XXG) use this file (pages on other projects are not listed):
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It is recommended to name the SVG file “North america basement rocks.svg”—then the template
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in the United States because it only contains materials that originally came from the
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as Image:North america basement rocks.jpg. Replaced when this better version found.
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Knowledge (XXG):Reference desk/Archives/Science/2016 July 26
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English
Knowledge (XXG), original upload 22 April 2005 by
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Reverted to version as of 19:38, 29 September 2019 (UTC)
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Reverted to version as of 21:20, 29 September 2019 (UTC)
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http://instruct.uwo.ca/earth-sci/300b-001/14strprv.gif
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File:North america and scandinavia basement rocks.png
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File:North america and scandinavia basement rocks.png
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Commons is a freely licensed media file repository.
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1462:Користувач:Alex Blokha/Події в Вікіпедії/25 вересня
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work of the federal government of the United States
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1069:Talk:Geology of the United States/Archive 1
210:http://rst.gsfc.nasa.gov/Sect2/14strprv.jpg
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1064:Talk:Abiogenic petroleum origin/Archive 1
608:North American cratons and basement rocks
293:United States Department of the Interior
132:. This has several advantages; see
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177:North america basement rocks.png
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52:North_america_basement_rocks.png
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1382:Трансгудзонский складчатый пояс
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289:United States Geological Survey
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1408:Usage on simple.wikipedia.org
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295:. For more information, see
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620:Items portrayed in this file
1019:List of shields and cratons
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1443:Usage on sv.wikipedia.org
1433:Usage on sr.wikipedia.org
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1388:Usage on sd.wikipedia.org
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1363:Usage on pl.wikipedia.org
1348:Usage on no.wikipedia.org
1338:Usage on km.wikipedia.org
1318:Usage on ja.wikipedia.org
1268:Usage on it.wikipedia.org
1258:Usage on hy.wikipedia.org
1248:Usage on hu.wikipedia.org
1232:Craton du Lac des Esclaves
1218:Usage on fr.wikipedia.org
1208:Usage on fa.wikipedia.org
1198:Usage on eo.wikipedia.org
1188:Usage on el.wikipedia.org
1163:Usage on de.wikipedia.org
1153:Usage on bs.wikipedia.org
1138:Usage on bn.wikipedia.org
1123:Usage on ar.wikipedia.org
1113:Usage on af.wikipedia.org
989:Geography of North America
120:image could be re-created
1307:Zona magmatica di Taltson
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134:Commons:Media for cleanup
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1377:Палеогеологическая карта
1074:User:Charlespsml/sandbox
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873:21:20, 29 September 2019
843:13:52, 30 September 2019
714:United States of America
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154:Vector version available
140:vector version available
77:This is a file from the
1132:قائمة الصفائح التكتونية
1024:List of tectonic plates
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1237:Rift médio-continental
1212:جغرافیای آمریکای شمالی
813:22:48, 11 October 2019
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84:description page there
1510:Horizontal resolution
1367:Laurencja (kontynent)
1242:Province du Supérieur
1079:User:Ryleymac/sandbox
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281:This image is in the
1352:Det kanadiske skjold
1147:উত্তর আমেরিকার ভূগোল
1054:Trans-Hudson orogeny
957:Saperaud~commonswiki
722:determination method
188:and basement rocks.
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1518:Vertical resolution
1277:Cratone del Wyoming
1262:Հյուսիսային Ամերիկա
1084:User:SEWilco/Images
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994:Geology of Ontario
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1297:Cratone Churchill
1272:Cratone Superiore
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1417:Slave Craton
1292:Cratone Nain
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1039:Slave Craton
1009:Lake Nipigon
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781:File history
765:5 March 2015
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200:5 March 2015
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92:You can help
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22:File history
1327:楯状地とクラトンの一覧
1287:Cratone Rae
175:Description
1392:اتر آمريڪا
1322:ノースダコタ州の地理
1202:Supra Lago
1034:Rae Craton
975:File usage
949:484 × 429
916:484 × 429
899:2nd upload
882:484 × 429
852:484 × 429
822:484 × 429
798:Dimensions
469:македонски
442:Tiếng Việt
397:Nederlands
237:Permission
164:parameter.
27:File usage
1521:47.24 dpc
1513:47.24 dpc
1412:Laurentia
1227:Laurentia
1014:Laurentia
795:Thumbnail
792:Date/Time
750:inception
460:български
424:sicilianu
406:português
58:image/png
1497:Metadata
1167:Laurasia
924:Ciaurlec
890:Ciaurlec
860:Ciaurlec
830:Ciaurlec
658:basement
601:Captions
388:italiano
370:français
37:Metadata
966:cratons
951:(13 KB)
918:(37 KB)
884:(31 KB)
854:(37 KB)
824:(31 KB)
809:current
804:Comment
625:depicts
605:English
541:العربية
478:русский
361:español
352:English
334:Deutsch
325:čeština
186:cratons
118:geology
54:
1477:Nền cổ
1447:Kraton
1437:Кратон
1427:Kraton
1402:Kraton
1357:Kraton
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