The sample consisted of pebbles of hardened sediment that had once been soft, deep-sea mud, as well as granules of gypsum and fragments of volcanic rock.
这一样本包括曾经柔软的的硬化沉积物的卵石、深海淤泥以及石膏颗粒和火山岩碎片。
2
EnlargeA deep-sea volcano spews lava. Research shows lava from such eruptions end up baking ocean sediment and releasing greenhouse gases.
一个深海火山喷发出熔岩，研究表明来自火山灰的熔岩烘烤海洋沉积物同时会释放温室气体。
3
Researchers found the same telltale signature of drought in a deep-seasediment core drilled from the Gulf of Oman.