American Geophysical Union (U.S.A.) 美国地球物理联合会 The American Geophysical Union (AGU), which was established in 1919 by the National Research Council and for more than 50 years operated as an unincorporated affiliate of the National Academy of Sciences, is now a nonprofit corporation chart ...
秘鲁 Cotahuasi 峡谷是世界上最深的峡谷,深度为3354米,是美国大峡谷的2倍左右深(Grand Canyon:1737米).美国最深的峡谷也不是大峡谷(Grand Canyon),而是地狱峡谷(Hells Canyon),深度为2436米. Satellite image of southwestern Peru. The Pacific ocean is in the southwest corner of ...
世界上最深的海沟——马里亚那海沟(平均深度8000米,距离日本列岛最近处不过200公里) The Greatest Ocean Depth: Challenger Deep in the Mariana Trench is the deepest point in Earth's oceans. The bottom there is 10,924 meters (35,840 feet) below sea level. If Mount Everest, the highest mountain on Eart ...
CGGVeritas results from the combination of Compagnie Générale de Géophysique (CGG) and Veritas DGC Inc. (Veritas) in early 2007. Those two companies were pioneers in the advancement of geophysical exploration going back all the way to 1931. Here are a few highlights of the h ...