Serpentinization｜蛇紋石化：超鎂鐵質岩與水反應時，原礦物能轉成蛇紋石並改變整塊岩石體積
WHAT 這是什麼
USGS describes present-day serpentinization in ultramafic bodies where water-rock reactions transform primary minerals such as olivine and pyroxene into serpentine minerals. The associated solution chemistry also indicates that these reactions can require an increase in rock volume.
WHY HERE 為什麼屬於底域的世界
水不只沿裂縫流過岩石，而能真正重寫礦物組成，甚至迫使固體體積改變；流體因此成為岩石內部反應的一部分。
BLIND SPOT 補了哪一塊少看的視角
USGS 頁面聚焦特定超鎂鐵質岩體；不同構造與流體條件下蛇紋石化反應路徑、產物與體積效應會有差異。
