Sentences with phrase «created deep lakes»

Extended intervals of heavy rains created deep lakes in several parts of eastern Africa at times critical in human evolution, according to a team led by geologist Martin H. Trauth of Potsdam (Germany) University.

Not exact matches

The formation of the rift fragmented the topography, creating mountains, deep valleys and lakes.

But, Levy says, in recent years there has been an increasing appreciation for salts and how they might create intragranular films of water: Instead of the deep briny lakes or aquifers one might find on Earth, scientists are now looking to «small pockets of briny soils that resist freezing and are chockablock with nutrients.»

«That created this expectation that there's a link between these high concentrations of methylmercury down in the deep brine layer and the elevated concentrations in waterfowl in the wetlands adjacent to the lake,» Johnson says.

There could be three evolutionary processes could explain this adaptive radiation of hominins: 1) the occupation of novel niches for species living in a highly productive but spatially constrained region when there are deep fresh water lakes in the EARS [46] and 2) the lakes themselves creating spatial structure producing population isolation and vicariance and 3) repeated periods of increased resource availability stimulated adaptation and radiation followed by periods of environmental stress when the lakes rapidly dried up imposing strong selection pressures [28].

They pulled a 5 cm wide, 3m deep cylinder of sediment from the bottom of Kirman Lake and analyzed it in 1 cm sections, creating the most detailed and continuous paleo - environmental record of California ever.

Digging deep: Shivajisagar lake was impounded in the Koyna region in Maharashtra to create an artificial reservoir in 1962.

Join CEL Project Director Sharon Williams and Beth Wallen, principal of Panther Lake Elementary School in Kent, Wash., on February 25, 2015, 10 - 11 a.m. Pacific (1 - 2 p.m. Eastern) and get a deeper understanding of important strategies for creating a results - focused learning environment, including:

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Located along the Andes Mountains, it is the largest lake in South America and is situated in such a way that mountain breezes tangle with warm lake air to create a perfect storm, so to speak, of storms — an enduring deep convection that results in 297 thunderstorms a year.

According to the NASA press release, the study «adds evidence that a geothermal heat source called a mantle plume lies deep below Antarctic Marie Byrd Land, explaining some of the melting that creates lakes and rivers under the ice sheet.»

A new NASA study adds evidence that a geothermal heat source called a mantle plume lies deep below Antarctica's Marie Byrd Land, explaining some of the melting that creates lakes and rivers under the ice sheet.