Match the geologic feature with its description. 1. seamount underwater volcano that never reaches above sea level 2. syncline underwater volcano whose top is eroded flat by waves 3. hot spring on rolling hills, this a dip between hills 4. volcanic neck break between rocks where a hanging wall rises relative to a footwall 5. caldera magma that filled the central vent that remains after the volcano has eroded 6. horst natural hot water on earth's surface containing many minerals 7. graben a raised footwall block between normal fault creates this 8. crater less than a mile in diameter; looks like a bowl at the top of a volcano 9. guyot over 1 mile in diameter; looks like a bowl over a volcano 10. reverse fault created when a block with hanging walls slips down between normal faults