Tertiary Volcanic Terrains of Tigrinyaland and Semien: Trachytes
This is the sixteenth installment of the geological description of Tigrinyaland and Semien, and it explores the tertiary volcanic terrains.
This is the sixteenth installment of the geological description of Tigrinyaland and Semien, and it explores the tertiary volcanic terrains.
This is the fifteenth installment of the geological description of Tigrinyaland and Semien, and it continues discussing the tertiary sedimentary terrains.
This is the fourteenth installment of the geological description of Tigrinyaland and Semien, and it explores the tertiary sedimentary terrains.
This is the thirteenth installment of the geological description of Tigrinyaland and Semien, and it examines the tertiary terrains.
This is the twelfth installment of the geological description of Tigrinyaland and Semien, and it explores the cretaceous terrains that make up the secondary lands.