Geologist Gerard Bond noticed that some of the sediment grains were stained with iron oxide, evidence that they originated in locales where glaciers had overrun outcrops of red sandstone.
地质学家杰拉德·邦德注意到,一些沉积物颗粒被氧化铁染色,这表明它们起源于冰川覆盖红砂岩露头的地方。
2
That red is uranium oxide.
那红的是二氧化铀。
3
Hematite is an iron oxide that is deep red in color.