Linear Marks Placed at the 90 Degree Points of a Circle

question 4

Multiple Choice

Linear marks placed at the 90 degree points of a circle template are called

• A) condescension marks
• B) quadrefoil marks
• C) registration marks
• D) quarter marks

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Definitions:

Nearby Slopes

Slopes in close proximity to a given location, often considered in geological studies and hazard assessments for potential risks like avalanches or landslides.

Island Arc

A curved chain of volcanic islands located at a tectonic plate margin, typically formed above a subducting plate.

Mid-Ocean Ridge

An underwater mountain range, formed by plate tectonics, featuring peaks separated by valleys with a central rift valley that forms at divergent plate boundaries.

Subduction

A geologic process where one tectonic plate moves under another, sinking into the earth's mantle.