quarternary deposit

例句：

1. 1. The research team collected samples from the quarternary deposits in the area.
   研究小组从该地区的四分之一沉积物中采集了样本。
2. 2. The study focused on the impact of climate change on the quarternary deposits.
   该研究关注气候变化对四分之一沉积物的影响。
3. 3. The discovery of new minerals in the quarternary deposits has sparked excitement among geologists.
   在四分之一沉积物中发现新矿物，引起了地质学家们的兴奋。