Hosted on MSN11mon
The incredible place ancient humans hid for over 7,000 years
The latest study focused on a lava tube named Umm Jirsan, which is in the volcanic field of Harrat Khaybar in Saudi Arabia, around 125 kilometres north of Medina, the country’s fourth biggest ...
Hosted on MSN7mon
Inside ancient Saudi Arabian lava tube that humans hid in 7,000 years ago
The latest study, published in the journal Plos One, saw researchers assess a lava tube called Umm Jirsan located in the volcanic field of Harrat Khaybar in Saudi Arabia, about 125km north of Medina.
EurekAlert!1y
Locations of the investigated gem minerals from Egypt and Saudi Arabia and scaled photos of colored gem minerals (IMAGE)
(2) Peridot from Harrat Kishb (volcanic field), Saudi Arabia. (3a) Emerald and (3b) Amazonite, Wadi Sikait, Wadi El-Gemal area, Eastern Desert, Egypt. (4) Low-grade emerald (beryl), Wadi Ghazala ...