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Collapsed Pingo

Collapsed pingo on the Tuktoyaktuk Peninsula in Canada. Unfrozen underground areas are sometimes engulfed by permafrost, causing that area to freeze. As it does, the pressure exerted by the expanding ice forces earth upward, forming a dome shape on the surface. This is called a pingo. Sometimes the surface of the dome cracks, exposing the underlying ice and allowing that ice to melt, which causes the dome to collapse. This is the process that has formed the topography in this image.
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Título:
Collapsed Pingo
Descripción: Ver traducción automática
Collapsed pingo on the Tuktoyaktuk Peninsula in Canada. Unfrozen underground areas are sometimes engulfed by permafrost, causing that area to freeze. As it does, the pressure exerted by the expanding ice forces earth upward, forming a dome shape on the surface. This is called a pingo. Sometimes the surface of the dome cracks, exposing the underlying ice and allowing that ice to melt, which causes the dome to collapse. This is the process that has formed the topography in this image.
Crédito:
Album / NASA/Science Source
Autorizaciones:
? Cesión de modelo: No - ? Cesión de propiedad: No
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Tamaño imagen:
2655 x 3128 px | 23.8 MB
Tamaño impresión:
22.5 x 26.5 cm | 8.8 x 10.4 in (300 dpi)
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