Sentences with phrase «volcanic tuff in»

Ethiopian King Gebre Mesqel Lalibela ensured his name would always be uttered with awe, when he commissioned 11 interconnected monolithic churches and two chapels to be carved out of red volcanic tuff in the 12th century at his birthplace in the northern reaches of his...

Not exact matches

Typically, this consists of two wall coverings assembled with roughly placed stones of volcanic tuff (opus incertum), together with a core of smaller stones set in a lime - mortar grout (opus caementicium).

In fact, fossils unearthed in the Tulu Bor flood plain, which blanked the basin near Mount Kulal, are embedded in tuff, or hardened volcanic asIn fact, fossils unearthed in the Tulu Bor flood plain, which blanked the basin near Mount Kulal, are embedded in tuff, or hardened volcanic asin the Tulu Bor flood plain, which blanked the basin near Mount Kulal, are embedded in tuff, or hardened volcanic asin tuff, or hardened volcanic ash.

What it lacks in speed, it more than makes up for in scenic splendour, passing by fascinating slate and volcanic tuff rock formations and then across the Brohl valley via a viaduct 120 metres long and 12 metres high.

To arrest erosion caused by wind and rain, a trass mortar achieved mixing volcanic tuff (trass) with lime, is compacted every 8 layers of earth directly in the formwork.