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Andesite lava typically has a viscosity of 3.5 × 10 6 cP (3.5 × 10 3 Pa⋅s) at 1,200 °C (2,190 °F). This is slightly greater than the viscosity of smooth peanut butter . [ 13 ] As a result, andesitic volcanism is often explosive, forming tuffs and agglomerates .
The flows are a few feet to several tens of feet (3–20 m), with columnar jointing common in the thicker flows. [1] The breccias in the Fifes Peak are mostly shades of gray, purple, and red, with angular to subrounded rock fragments cemented by ash. The fragments are a few inches in dimension, rarely a foot long.
The formula may be written as Na 0.7-0.5 Ca 0.3-0.5 Al 1.3-1.5 Si 2.7-2.5 O 8. [ 2 ] The plagioclase feldspars are a continuous solid solution series and as such the accurate identification of individual members requires detailed optical study, chemical analysis or density measurements.
In some countries, bananas used for cooking may be called plantains. The fruit is variable in size, color and firmness, but is usually elongated and curved, with soft flesh rich in starch covered with a rind which may be green, yellow, red, purple, or brown when ripe. The fruits grow in clusters hanging from the top of the plant.
20 Recipes That Use Overripe Bananas. These 20 recipes for overripe bananas might have you leaving a couple on the counter to darken just so you can make them. A mashed ripe banana or two (maybe ...
[4] [5] [6] A hāngī pit is dug to a depth of between 50–100 cm (20–40 in), sufficient to hold the rocks and two stacked baskets of food. Logs, usually mānuka or kānuka, are stacked over the pit with the rocks, commonly andesite or basalt, on top. The logs are lit and is left to burn for 3 to 4 hours, heating the rocks to 600–700 °C ...
Trachyandesite is an extrusive igneous rock with a composition between trachyte and andesite. It has little or no free quartz , but is dominated by sodic plagioclase and alkali feldspar . It is formed from the cooling of lava enriched in alkali metals and with an intermediate content of silica .
Tang Yan Song / ShutterstockChocolate, peanut butter, and banana are a beloved ingredient combination that often comes together in the form of frozen treats. Now, Costco members can score one sold ...