News articles tagged with 'Andes'
Glaciers boost mountain growth in Andes
— 15 Sep 2010 17:57 | EnvironmentGlaciers have carved some of the planet's most dramatic landscapes, from Yosemite National Park to the Himalayas. Now geologists have discovered that glaciers can do more than erode…
Not so fast! Andes rise was gradual, not abrupt
— 2 Apr 2010 12:15 | Geology and palaeontologyTrailing like a serpent's spine along the western coast of South America, the Andes are the world's longest continental mountain range and the highest range outside Asia, with an average…
White, but not pure
— 8 Dec 2009 11:53 | EnvironmentEven the snow on Aconcagua Mountain in the Andes is polluted with PCBs. An international team of researchers detected low concentrations of these toxic, carcinogenic chlorine compounds…
Andean salars: Reflections of Earth and climate history
— 21 Jul 2009 16:01 | EnvironmentA strong sun sends its rays over the white expanse reaching far to the horizon between the Andean summits…
The first evidence of pre-industrial mercury pollution in the Andes
— 19 May 2009 13:10 | EnvironmentThe study of ancient lake sediment from high altitude lakes in the Andes has revealed for the first time that mercury pollution occurred long before the start of the Industrial Revolution…
Andes Mountains are older than previously believed
— 16 May 2009 11:27 | Geology and palaeontologyThe geologic faults responsible for the rise of the eastern Andes mountains in Colombia became active 25 million years ago - 18 million years before the previously accepted start date…
A frog that fits on a fingertip discovered in South America
— 6 Apr 2009 13:21 | BiologyIt fits on a fingertip: Noblella pygmaea is a midget frog, the smallest ever found in the Andes and among the smallest amphibians in the world. Only its croaking was to be heard from…
Amazonian amphibian diversity traced to Andes
— 10 Mar 2009 15:30 | BiologyColourful poison frogs in the Amazon owe their great diversity to ancestors that leapt into the region from the Andes Mountains several times during the last 10 million years, a new…
As Andean glacier retreats, tiny life forms swiftly move in
— 9 Sep 2008 16:51 | EnvironmentA University of Colorado at Boulder team working at 16,400 feet in the Peruvian Andes has discovered how barren soils uncovered by retreating glacier ice can swiftly establish a thriving…
Undiscovered minerals in the Andes
— 5 Sep 2008 18:28 | Geology and palaeontologyDeposits of undiscovered copper, molybdenum, gold and silver may be present in the Andes Mountains of South America, according to a new scientific assessment…