1. Formation: Folded mountains are formed when large tectonic plates collide and compress. The massive force causes the Earth's crust to buckle and fold, resulting in the uplift of landmasses.

2. Structure: Folded mountains are characterized by long, linear, and continuous mountain ranges. The folding process creates intricate patterns of anticlines (upward folds) and synclines (downward folds).

3. Examples: The Himalayas, the Andes, the Alps, and the Appalachians are prominent examples of folded mountains.

Fault Block Mountains:

1. Formation: Fault block mountains are formed when large blocks of the Earth's crust are uplifted or dropped along fault lines. These faults result from the movement of tectonic plates.

2. Structure: Fault block mountains consist of tilted or uplifted blocks of the crust, separated by basins or valleys. They often have steep slopes and flat tops.

3. Examples: The Basin and Range Province in the western United States, the Vosges Mountains in France, and the Black Forest in Germany are notable examples of fault block mountains.

Comparison:

| Feature | Folded Mountains | Fault Block Mountains |

|---|---|---|

| Formation Mechanism | Collision and compression of tectonic plates | Uplift or dropping of crustal blocks along faults |

| Structure | Continuous ranges with folded layers (anticlines and synclines) | Tilted or uplifted blocks separated by basins or valleys |

| Topography | Long, linear mountain ranges with complex folding | Steep slopes, flat tops, and block-like structures |

| Examples | Himalayas, Andes, Alps, Appalachians | Basin and Range Province (Western US), Vosges Mountains, Black Forest |