Magma compositions are independent of the amount of crustal rock melted and incorporated into the rising magma.
Correct Answer:
Verified
Q43: At oceanic spreading centers,magmas are rhyolitic in
Q44: Highly fluid basaltic lava may cool with
Q45: If the magma cools and solidifies below
Q46: The higher the viscosity of a magma,the
Q47: The lowest temperatures and highest SiO2 contents
Q49: About 80 percent of the magma reaching
Q50: Over 80 percent of Earth's magma extruded
Q51: Basaltic magmas have low contents of SiO2,low
Q52: The highest temperatures and highest SiO2 contents
Q53: Magma rising in a subduction zone tends
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents