Sentences with phrase «lake basin»

In an attempt to help remedy this situation, we report here the presence of three stratified Middle Palaeolithic sites associated with the Jubbah palaeolake, a significant lake basin in the Nefud Desert of northern Saudi Arabia.

Southward propagation of rifting and magmatic activity resulted in the formation of lake basins first in the northern parts of the EARS.

Its practitioners included Robert Smithson, whose Spiral Jetty (1970) in Utah's Great Salt Lake basin is one of the movement's best - known works, and James Turrell, an artist represented by Lisa Sette Gallery in Phoenix whose Roden Crater project started in 1972 involves the ongoing transformation of a volcanic crater into a large - scale art work.

Located at 6,400» in Northern California's Trinity Alps Wilderness - Camp is nestled in a beautiful alpine lake basin, surrounded by rugged peaks and saw - tooth ridges - the perfect location to provide a co-ed wilderness backpacking summer camp to youth ages 10 - 17.

But the four shown above reside in the St. Lawrence River in Canada, which carries waters flowing from the Great Lakes basin toward the Atlantic Ocean.

«We think there were a lot of hot spring environments on Mars,» says Farmer, «and large lake basins where evaporites may have formed.

The number of people living in the Great Lakes basin grew dramatically throughout the first half of the twentieth century.

«Severe harmful algal bloom predicted for Lake Erie in 2015: Second worst in century predicted: Heavy June rains causing heavy nutrient runoff into lake basin.»

«Ancient trail of Columbian mammoths uncovered in south - central Oregon: University of Oregon - led research team uncovers numerous footprints of adult, juvenile and infant elephants in a remote dry lake basin.»

By priming the land to form lake basins that were sensitive to small changes in rainfall, extreme climate pulses of alternately arid and wet period occurred and had a profound effect on all the animals living in East Africa.

The development of the East African Rift valley fragmented the landscape and formed a large number of separate lake basins.

The effects of the lake variability may have been enhanced at 1.8 Ma as key geological features that fragment the current lake Basins had yet to form; including the Barrier volcano separating Lake Turkana and the Suguta valley (∼ 1.4 Ma eastern side and ∼ 0.7 Ma western side) and the Emuruangogolak volcano (∼ 1.3 Ma), and Namarunu volcano (0.8 Ma) which separate Lake Baringo and the Suguta Valley [35]--[37], [44].

This jump of 80 % expansion in cranial capacity occurs during one of only two periods when there is evidence for at least 5 of the 7 major intra-rift lake basins being active.

Sarah FitzSimons» photo installation Pier presents a mysterious structure in a long - empty lake basin, evoking deep, geologic time.

Abstract:... beneath portions of the northeastern Laurentide Ice Sheet, characterized by cold - based glaciation, sediment sequences representing multiple interglaciations have been preserved within extant lake basins.

In 2012 researchers in the Sierra Nevada also documented a wave of extinction as the fungus» spread through three lake basins around Sequoia National Park.

In their Nature Geoscience article, Wurtsbaugh, Null and their co-authors estimate that runoff in the Great Salt Lake basin will decline by 11 — 20 percent by the middle of this century as a result of climate change.

Protection, cleanup and restoration are essential to ensure that we live in a vital, thriving Great Lakes basin.

Researchers selected white and longnose suckers as focal species for the project because they migrate in large numbers into streams throughout the Great Lakes basin and are large enough to see easily.

«We've tackled the low - hanging fruit,» said Ronald Hites, a professor at Indiana University's School of Public and Environmental Affairs who specializes in air monitoring in the Great Lakes basin.

More than 1,400 wastewater treatment plants in the United States and Canada discharge 4.8 billion gallons of treated effluent into the Great Lakes basin every day, according to the study.

For example when the lake Basins are dry they become «hyper arid» and thus inhabitable and hence hominin population would have been forced to migrate to the north and south [34] but there would also have been a server lack of resources.

The lake basin holds about 20 percent of the world's unfrozen fresh water.A sacred site for Buryat shamans, Lake Baikal's Shaman Rock is steeped in legend.Our train route hugs the rocky shores and passes through 33 tunnels.

To examine the relative influence of different processes on the lake basin climate, a suite of model experiments...

A glacier that illustrates the glacier retreat is the Lynch Glacier below which initially fills the lake basin in 1978, then retreats to the margin of the lake in 1985 and then retreats upslope from the lake by 1994.

The rivers of the Great Lakes basin have been heavily impacted by its industrial past, invasive species and a changing climate.

In the Great Lakes basin, which receives much of the waste effluent of 40 million surrounding residents, triclosan has been detected in 90 percent of surface water samples and found in many fish.

The $ 4.27 billion «mid-system» version of the plan breaks down to an average cost of $ 1 a month for households in the Great Lakes basin... for the next 47 years (until 2059).

But this core was taken in what was then the center of the lake basin.

Dr Willis and colleagues report in Nature journal that between 2011 and 2014 they watched as summer meltwater made its way down fissures in the depression and refilled a lake basin at the base of the icecap.

In 1735, Louis XV forbade most mixed marriages; nevertheless, the rise of mixed communities in the Great Lakes basin, particularly along Lake Superior, indicated the prevalence of the practice.