Volcanic rocks of the Karoo that formed many leagues under the Gondwana Sea
New field mapping has discovered abundant pillow lavas at the lower levels of Jurassic Karoo volcanic rock sequences across Lesotho and South Africa, in the Drakensberg Mountains. Below is a link to the drone footage of one of the section:
First results suggest that the Karoo pillow lavas erupted between 186 and 184 million years ago in relatively deep (500 m) seawater of a rift system, such as at the open-end of the East African Rift across the Afar, in Ethiopia. An article is published in the South African Journal of Geology (https://doi.org/10.25131/sajg.123.0021) .