3 min read From afar, Earth looked much as it does today when the Neogene period began. But looks are deceiving. Mountains rose, and sea levels fell. The climate cooled and dried. Species were ...

Active fold-propagation fold developed in Neogene red beds at the margin of NE Tibet (Qilian Shan). Two fill-cut terraces, which are partially covered by a thin loess blanket and alluvial fans, are ...