فائل:North america and scandinavia basement rocks.png
اڃان سنھو تحلل ميسر ناھي.
North_america_and_scandinavia_basement_rocks.png (484 × 429 عڪسلون، فائيل سائيز: 15 KB، MIME ٽائيپ: image/png)
| تشريح | North American cratons 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, patterns of age intervals were determined. These old rocks have been called the "basement". This has 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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This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: Change of colours to match some geological map colour templates. The original can be viewed here: North america basement rocks.png:  . Modifications made by Bjoertvedt.
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ھي فائيل ڪريئيٽو ڪامنز انتساب-ھڪجھڙي ڀاڱيداري 3.0 انپورٽڊ اجازتنامي ھيٺ اجازتنامو ڏنل آھي.
- توھان آزاد آھيو:
- ونڊڻ لاءِ – اھو ڪم نقل ڪرڻ، ورڇڻ، ۽ پارمڪارڻ
- جڳلبندي ڪرڻ – ڪم اختيار ڪرڻ لاءِ
- ھيٺين شرطن تي:
- انتساب – توهان لازماً مناسب انتساب ڏيو، اجازتنامي ڏانھن ڳنڍڻو مھيا ڪريو، ۽ جيڪڏھن ڪي تبديليون ڪيون ويون ھجن تہ انھن جي نشاندھي ڪريو. توهان اهو ڪري سگهو ٿا ڪنھن بہ معقول طريقي سان، پر ڪنھن بہ اھڙي طريقي سان نہ جيڪو ڏسي تہ اجازتنامو ڏيندڙ توهان جي يا توهان جي استعمال جي توثيق ڪري ٿو.
- ھڪجھڙي ڀاڱيداري – جيڪڏھن توھان ٻيھر ملاوٽ، بدلاءُ، يا مواد تي اڏاوت ڪريو ٿا، توھان کي لازماً پنھنجون ڀاڱيداريون ساڳي يا موافق اجازتنامي جھڙو اصل جو ھيو، ھيٺ ٻيھر-ورھائڻ گهرجن.
Original upload log
This image is a derivative work of the following images:
- File:North_america_basement_rocks.png licensed with PD-USGov-USGS
- 2005-09-16T15:47:59Z Saperaud 484x429 (13371 Bytes) [[North America]]n [[craton]]s 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 interio
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| تاريخ/وقت | ٽِڪِلِي | ماپَ | واپرائيندڙ | راءِ | |
|---|---|---|---|---|---|
| هاڻوڪو نسخو | 21:34, 1 اپريل 2011 | | 484 × 429 (15 KB) | Bjoertvedt | {{Information |Description=North American cratons 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 o |
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