A cutaway view of central Taiwan's geological structure in east-west cross section reveals that the mountain ranges, plains, and foothills sit atop an extravagantly folded layer of rock cloven by numerous reverse faults. The resulting surface topography brings to mind the image of roof tiles, starting with the "eaves" in the west and running up the western face of the mountains to the peak.
由台灣腹部橫切而過，看看其中的地質構造，剖面圖上，在山脈、平原交界的苗粟、南投、嘉義山麓，呈現激烈的褶皺與斜躺著學界目前已知的一條條逆衝斷層，造成地表由東而西如一層層瓦片覆蓋，也像餅乾被壓縮斷裂成一片片交疊，象徵台灣大地在此也不斷在窄化。