File:TV-009-0497 (15569017007).jpg

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Gros Morne National Park, Newfoundland. Heading westward on Route 431 from Woody Point to Trout River, I passed by the Tablelands: some 30 square miles (80 square kilometers) of flat-topped mountains towering over dusty, boulder-strewn fields, lacking greenery of any kind. The bedrock and soil of the Tablelands is made up of peridotite and other igneous rock material ejected from the Earth's mantle hundreds of millions of years ago in a violent cataclysm of plate tectonics; the iron- and magnesium-rich, highly alkaline soil is poor in nutrients and, in fact, quite toxic to most forms of plant life. This gives the Tablelands the look of a barren desert, quite a contrast to the dense forests that cover neighboring regions.

Parc national du Gros-Morne, Terre-Neuve. Alors que je conduisais vers l'ouest sur la route 431 depuis Woody Point jusqu'à Trout River, je suis passé par les Tablelands: 80 kilomètres carrés, plus ou moins, de montagnes à sommet plat qui surplombent des champs poussiéreux parsemé de rochers, sans aucune verdure du tout. Le socle et le sol des Tablelands est constitué de péridotite et d'autres matériaux magmatiques qui ont été éjectés du manteau de la Terre il y a des centaines de millions d'années, lors d'un cataclysme violent de la tectonique des plaques; le sol très alcalin, riche en fer et en magnésium, manque de nutriments et, en fait, est très toxique pour la plupart des formes de vie végétale. Cela donne aux Tablelands l'apparence d'un désert aride, un grand contraste avec les forêts denses qui couvrent les régions voisines.

Parque Nacional Gros Morne, Terranova. Al conducir hacia el oeste a lo largo de la Carretera 431 desde Woody Point hasta Trout River, pasé por los Tablelands: unos 80 kilómetros cuadrados de montañas de cimas planas que se elevan sobre los campos polvorientos sembrados de rocas, sin ninguna vegetación. El lecho de roca y el suelo de los Tablelands se componen de peridotita y otros materiales ígneos que se expulsaron del manto de la Tierra hace cientos de millones de años en un cataclismo violento de la tectónica de placas; el suelo altamente alcalino, rico en hierro y magnesio, carece de nutrientes y, de hecho, es muy tóxico para la mayoría de formas de vida vegetal. Esto da a los Tablelands el aspecto de un desierto árido, un gran contraste con los bosques densos que cubren las regiones vecinas.
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Source TV-009-0497
Author André Carrotflower

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This image was originally posted to Flickr by Carrotflower Productions International at https://flickr.com/photos/59639129@N08/15569017007. It was reviewed on 17 June 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-sa-2.0.

17 June 2020

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current16:17, 17 June 2020Thumbnail for version as of 16:17, 17 June 20201,600 × 1,200 (208 KB)Mindmatrix (talk | contribs)Transferred from Flickr via #flickr2commons

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