Which best describes how wedge basins form? When two plates move apart, the weaker part of Earth’s crust moves down at normal faults where sediments are deposited until a basin forms. At the area where two bent plates slide past each other, a depression forms where sediments are deposited. When two plates collide, the non-subducting plate scrapes the subducting plate and forms a depression where sediments gather. At the area of a depression between two plates, sediments continue to get deposited and become compacted. Which best describes how wedge basins form? When two plates move apart, the weaker part of Earth’s crust moves down at normal faults where sediments are deposited until a basin forms. At the area where two bent plates slide past each other, a depression forms where sediments are deposited. When two plates collide, the non-subducting plate scrapes the subducting plate and forms a depression where sediments gather. At the area of a depression between two plates, sediments continue to get deposited and become compacted.