What would a rock that contains 30% quartz, 20% alkali feldspar, and 50% plagioclase feldspar be called

ANSWER:

A rock which contains 30% quartz, 20% alkali feldspar, and 50% plagioclase is called Rhyolite porphyry.

EXPLANATION:

tropical storm katrina, and it made landfall between miami and fort lauder-dale, florida, as a category 1 hurricane (a storm that, on the saffir-simpson scale, exhibits winds in the range of 74–95 miles per hour [119–154 km per hour]). sustained winds of 70 miles per hour (115 km per hour) lashed the florida peninsula, and rainfall totals of 5 inches (13 cm) were reported in some areas. the storm spent less than eight hours over land. it quickly intensified when it reached the warm waters of the gulf of mexico.

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