biospeleologist

例句：

1. 1. He isa biospeleologist with expertise in studying the geology of ancient volcanic eruptions.
   他是一位专门研究古火山喷发地质学的地质学家。
2. 2.The paleontologist has discovered new species of ammonites from the local fossil deposits.
   这位古生物学家在地方化石库中发现了新的腹足类物种。
3. 3. She specializes in stratigraphy and is an accomplished stratigrapher who has contributed significantly to the study of marine sedimentary rocks.
   她专攻地层学，是一位成就卓著的地层学家，对海洋沉积岩的研究做出了重要贡献。