Jamhuri Ya Muungano Wa Tanzania

Tanzania Geothermal Development Company

(TGDC)

Eneo la jotoardhi la crater ya ngorongoro

Ngorongoro caldera is located in Ngorongoro Conservation Area about 180 Km west of Arusha region, Northern Tanzania. It is believed to be the world’s largest inactive, intact and unfilled volcanic caldera recognized as one of the seven natural wonders in Africa.

The field is located within the Eastern branch of the East African rift system which runs from Lake Turkana in Kenya to Northern Tanzania. Ngorongoro is thought to have formed about 2.5 million years ago from a large active volcano whose cone collapsed inward after a major eruption, leaving the present vast, unbroken caldera as its chief remnant. It is 610 meters deep and its floor covers 260 square kilometers.

The seasonal salt lake at the center of the caldera is fed by Munge stream to the north and Ngoitokitok Spring. The field is characterized by Quaternary volcanic rocks and there are no documented structures in the area. Surface geothermal manifestations in the area include the hot springs which well up through unconsolidated scree deposits.