What rock type makes up seamounts and guyots?Question 12Answercoquinagranitebasaltchertophiolites

Break Down the Problem

1. Identify the types of rocks mentioned in the question.
2. Determine which of the listed rock types is commonly found in seamounts and guyots.

Relevant Concepts

Seamounts and guyots are underwater mountains formed by volcanic activity. The types of rocks typically associated with these geological formations include:

• Basalt: A common volcanic rock that typically forms from the rapid cooling of lava at the Earth's surface.
• Granite: An igneous rock that is usually formed from the slow crystallization of magma beneath the Earth's surface.
• Chert: A sedimentary rock made up of microcrystalline quartz.
• Ophiolites: A section of the Earth's oceanic crust that has been uplifted and exposed above sea level.

Analysis and Detail

• Seamounts are primarily formed by volcanic eruptions, which typically produce basaltic lava.
• Guyots are flat-topped seamounts that have eroded over time and are also composed mainly of basalt.
• The other rock types mentioned (coquina, granite, chert, and ophiolites) do not typically form the core of seamounts or guyots.

Verify and Summarize

Based on the information analyzed, the rock type that predominantly makes up seamounts and guyots is basalt.

Final Answer

Basalt is the rock type that makes up seamounts and guyots.