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SEM observations on chalk samples artificially weathered with distilled... | Download Scientific Diagram
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A , Photograph of weathering profile in the Niobrara Chalk marl (from... | Download Scientific Diagram
![File:Close-up of weathered chalk, Ashdown House, Lambourn - geograph.org.uk - 1874543.jpg - Wikimedia Commons File:Close-up of weathered chalk, Ashdown House, Lambourn - geograph.org.uk - 1874543.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/3/36/Close-up_of_weathered_chalk%2C_Ashdown_House%2C_Lambourn_-_geograph.org.uk_-_1874543.jpg)
File:Close-up of weathered chalk, Ashdown House, Lambourn - geograph.org.uk - 1874543.jpg - Wikimedia Commons
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