They published their results with a geological map in 1930.
In 1769, he worked on the first geological map of France.
He created the first geological map of England during the late 1790s and early 19th century.
In 1815 he published the first geological map of Britain.
It was a geological map of the planet's surface that she'd had the computer put together for them.
He also published a small geological map of Germany (1869).
This was the last statewide geological map published in the 19th Century.
They enabled him to establish a general geological map of China.
Extensive surveys and geological maps were made at that time.
Within this time period (1871-1883), he also made contributions to the geological map of France.
