Where Did The Aztecs Find Obsidian?

Where Did The Aztecs Find Obsidian? Sources in the Valley of Mexico, which fell under Teotihuacan control during the Early Classic, were Pachuca, Otumba, and Chicoloapan. Obsidian from Pachuca is notable because of its unique green-gold color and its internal purity which makes it one of the highest quality obsidian sources in Mesoamerica. Did Mayans

What Caused The Eruption Of Mount Vesuvius In 1944?

What Caused The Eruption Of Mount Vesuvius In 1944? The 1944 eruption, like eight of the 10 previous eruptions, was effusive-explosive, combining flowing lava with violent expulsions of rock and ash. The other two were purely effusive, including one in 1855 that sent a lava flow into San Sebastiano. The last explosive eruption of Vesuvius

What Affects Magma Composition?

What Affects Magma Composition? Different minerals within a rock melt at different temperatures. The amount of partial melting and the composition of the original rock determine the composition of the magma. … The higher the amount of silica in the magma, the higher is its viscosity. Viscosity is a liquid’s resistance to flow. What does