feldsparphyric rock

例句：

1. 1. The geologist found the feldsparphyric rock to be a good indicator of ancient volcanic activity.
   地质学家发现这种长石砂岩是古代火山活动的一个良好指标。
2. 2. The feldsparphyric rock is highly susceptible to weathering and can be easily broken down by water.
   长石砂岩极易风化，并且很容易被水分解。
3. 3. The feldsparphyric rock is used in construction as it has excellent strength and durability.
   长石砂岩因其出色的强度和耐久性而被用于建筑施工。