Evolution of Igneous Activity in Various Hotspot Areas Over Millions of Years

Detailed historical account of igneous activity in hotspot regions such as Iceland, Eifel, Azores, and Canary Islands from Morgan's study. The progression of volcanic events over different geologic periods is illustrated through images and descriptions. The timeline ranges from 200 Ma to present findings, showcasing significant milestones in volcanic activity.

• Igneous activity
• Hotspot regions
• Evolution
• Geological periods
• Volcanic events

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1. Jan Mayen Iceland Eifel Azores Canary New England Verde St. Helena Crozet Tristan Bouvet 200 Ma 180 Ma 160 Ma 140 Ma 120 Ma 100 Ma 80 Ma 60 Ma 40 Ma 20 Ma 0 Ma Morgan (1981) In: Emiliani (Ed) The Sea, Vol. 7, 443-487 J. Wiley & Sons

2. No evidence of volcanism along this hypothetical track Canary St Helena The Crozet hot-spot is considered the source of Karroo CFB (peaking Crozet 200 Ma @ 180 Ma) Morgan (1981) In: Emiliani (Ed) The Sea, Vol. 7, 443-487 J. Wiley & Sons

3. 180 Ma Morgan (1981) In: Emiliani (Ed) The Sea, Vol. 7, 443-487 J. Wiley & Sons

4. Igneous activity starts around 134 Ma Tristan 160 Ma Morgan (1981) In: Emiliani (Ed) The Sea, Vol. 7, 443-487 J. Wiley & Sons

5. The igneous activity in the Eifel area ranges from ~65 to ~0.01 Ma in the same area New England (Cape) Verde 140 Ma Morgan (1981) In: Emiliani (Ed) The Sea, Vol. 7, 443-487 J. Wiley & Sons

6. 120 Ma Morgan (1981) In: Emiliani (Ed) The Sea, Vol. 7, 443-487 J. Wiley & Sons

7. Bouvet 100 Ma Morgan (1981) In: Emiliani (Ed) The Sea, Vol. 7, 443-487 J. Wiley & Sons

8. The Siberian Traps (~200 Ma) are considered the first expression of the Jan Mayen hot-spot Jan Mayen 80 Ma Morgan (1981) In: Emiliani (Ed) The Sea, Vol. 7, 443-487 J. Wiley & Sons

9. Iceland Afar Quoted in the article, but not reported in the figures 60 Ma Morgan (1981) In: Emiliani (Ed) The Sea, Vol. 7, 443-487 J. Wiley & Sons

10. Eifel The igneous activity in the Eifel area ranges from ~65 to ~0.01 Ma in the same area 40 Ma Morgan (1981) In: Emiliani (Ed) The Sea, Vol. 7, 443-487 J. Wiley & Sons

11. Azores are located along a major dextral strike-slip fault (Azores- Gibraltar Fracture Zone) Azores No existence of hot-spot track along the Cameroon Line 20 Ma Morgan (1981) In: Emiliani (Ed) The Sea, Vol. 7, 443-487 J. Wiley & Sons

12. 0 Ma Morgan (1981) In: Emiliani (Ed) The Sea, Vol. 7, 443-487 J. Wiley & Sons

13. Jan Mayen Iceland Eifel Azores Canary New England Verde St. Helena Crozet Tristan Bouvet Morgan (1981) In: Emiliani (Ed) The Sea, Vol. 7, 443-487 J. Wiley & Sons