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File:Camden Interiors, 19 Chalk Farm Road, London NW1 - geograph.org.uk - 398309.jpg - Wikimedia Commons
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![Interior of Chalk Farm Underground station on the Northern Line, empty during the Covid-19 lockdown, London, England, United Kingdom, Europe Stock Photo - Alamy Interior of Chalk Farm Underground station on the Northern Line, empty during the Covid-19 lockdown, London, England, United Kingdom, Europe Stock Photo - Alamy](https://c8.alamy.com/comp/2C6B7EJ/interior-of-chalk-farm-underground-station-on-the-northern-line-empty-during-the-covid-19-lockdown-london-england-united-kingdom-europe-2C6B7EJ.jpg)
Interior of Chalk Farm Underground station on the Northern Line, empty during the Covid-19 lockdown, London, England, United Kingdom, Europe Stock Photo - Alamy
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Stratigraphy of the London Basin (to the top chalk). Unit thicknesses... | Download Scientific Diagram
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