The retreat of Nigardsbreen, an outlet glacier from the ice-cap Jostedalsbreen in south-central Norway, from its largest extent during the Little Ice Age, uncovered a proglacial lake during 1936-1967.

The Yellow River, China's second-longest river, transports more sediment than any major river in the world. Centuries of silt accumulation have diminished reservoir capacity and elevated its riverbed, ...

Temperature-controlled seawater columns were used to investigate settling rates of Ditylum brightwelli grown on light-dark schedules. Ficoll density gradient centrifugation was used to examine the ...

The rocks on Earth are constantly changing due to many different processes. There are three main types of rock, with rocks changing between each type over millions of years. This rock recycling is a ...