The Tertiary volcanic formations in Greenland south of Scoresbysund are quite similar to Iceland. Therefore there might be found some similarities. The first to look after are traces of volcanic zones. They might look like this:
Were there volcanic zones in Greenland?
This is only based on the presumption that this peninsula was formed under similar circumstances as Iceland.
Some research has been made on the topic: https://jgs.lyellcollection.org/content/154/3/565 , indicating that activity was developing in a rift zone close to the coast, which would then resemble the Icelandic East Volcanic Zone, or even also Öræfajökull Volcanic Belt, replacing the activity of Western Volcanic Zone.
I am a geologist, graduated from the University of Iceland, and taught geology for a few years. I have gained some knowledge about Earth's inner structure, so I provide this website as my contribution to answer one of the greatest questions remaining within the realm of geoscience. Experiments show that the mantle should form convection rolls when close to the melting point. I took this literally, and calculated the dimensions and shape of these mantle convection rolls. Then I compare that model with the surface. This makes it possible to provide many interesting examples about geology found on my blog.
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Magic Magma 