Sentences with phrase «of volcanic tuff»
While they admit the dating of the volcanic tuff was inaccurate, F. Fitch and colleagues claim that the depth of the specimen beneath the tuff shows a much earlier age, daing to around 2.4 myr.
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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).
Coarse chunks of volcanic tuff and brick compose about 45 - to -55-percent (by volume) of the concrete.
Not exact matches
The Secret Pass deposit, categorized as an epithermal - type deposit hosted within Tertiary Volcanics (Bullfrog Tuff), currently hosts an inferred resource of 11.1 million tonnes grading 0.93 g / t Au using a 0.3 g / t cut - off, containing an estimated 335,000 oz Au.
Major sources, such as episodes of exceptional volcanic activity, covered near - continental sized areas with lavas and tuffs, thus leaving their calling - cards behind for geologists to examine.
The specimen was originally thought to be around 2.9 myr old, due to an inaccurate dating of 2.6 myr for the KBS volcanic tuff located above it.
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...
Daphne is a volcanic tuff cone, formed by successive explosions produced by the mixture of lava and water.
This property is within walking distance to all of Waikiki's main attractions, including Diamond Head (a volcanic tuff cone), the Honolulu Zoo and the Waikiki Aquarium.
Major sources, such as episodes of exceptional volcanic activity, covered near - continental sized areas with lavas and tuffs, thus leaving their calling - cards behind for geologists to examine.
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.