Sentences with phrase «of ancient lake»

They call it a 50 km ride, but it is really a 25 km slog uphill as we ride up from the lake past the shores of ancient Lake Algonquin (the waters edge after the ice age) and stop for a break at the high point;

A recent study of ancient lake - bottom sediments found layers of charcoal next to layers of shrub pollen, suggesting a close link between shrubs and wildfire.

Remnants of an ancient lake, the pans are interspersed with sandy desert and occasional vegetation.

One of them is the floor of an ancient lake; another is a hot spring; and the third one is a site where hot water interacted with rocks in the shallow subsurface.

Data from the flyby showed evidence of an ancient lake, now extinct, on the surface of the body.

The team analysed over 50,000 pieces of wood and nearly 36,000 pieces of flint from what was once probably a Homo erectus settlement on the shores of an ancient lake.

These oil shales formed at the bottom of ancient Lake Messel and preserve the remains of mammals, birds, and other animals that were living near what is now Darmstadt, Germany about 47 million years ago (the Eocene epoch).

Since desiccation mudcracks form only where wet sediment is exposed to air, their position closer to the center of the ancient lake bed rather than the edge also suggests that lake levels rose and fell dramatically over time.

Joyce and his colleagues suggest instead that while surface waters of the ancient lake were oxygenated, deeper layers were oxygen - poor and possibly saturated with carbon dioxide or other toxic substances.

In this case, the researchers combined records of ancient lake levels, location and extent of glaciation, variations in the composition of stalagmites in caves, and evidence for changes in vegetation and subsurface soil deposits associated with water table depth.

The list of places where NASA's next Mars rover, due to launch in 2020, could land has been narrowed down to three: Jezero crater, the dry remains of an ancient lake; Northeast Syrtis, which used to host hot springs; and the Columbia Hills, previously explored by NASA's Spirit rover.

Like all modern paleontologists, Therrien was acquainted with the spectacular feathered - dinosaur fossils of the Liaoning beds in China, where the idea that dinosaurs are the ancestors of birds got its biggest boost, thanks to the preservation of feathers — both the thread - like ones known as «dinofuzz» and the more familiar shafted kind — in the silky mud of an ancient lake bottom.

The elevated silica in halos was found over approximately 20 to 30 meters in elevation near a rock - layer of ancient lake sediments that had a high silica content.

Scientists had assumed that a series of ancient lakes once scattered from Kansas to North Dakota were largely alkaline, because of the large quantities of salt found in the area's sandy reddish rocks that were formed when the lake evaporated about 270 million years ago.

Curiosity reached the base of Mount Sharp in 2014 and has examined 600 vertical feet of rock which contains evidence of the ancient lakes as well as groundwater.

Not exact matches

No golden plates, no chariots and steel and horses in ancient America, and the Temple in Salt Lake City is the center of the grift universe!»

[246][248] Tourism Landmarks, National Border, Region and Terrestrial plain of the 4th Republic of Ghana Coastal Plain Accra, Apam, Cape Coast, Elmina, Kakum National Park, Kokrobite, Nzulezo, Sekondi - Takoradi, Ada Foah The Gulf of Guinea coastal plain with the seat of government and capital city, several castles and forts and the best preserved rainforest in Ghana Ashanti - Kwahu Koforidua, Kumasi, Obuasi, Sunyani Forested hills and the ancient Kingdom of Ashanti Volta Basin Tamale massive and world's largest Lake Volta, the river system that feeds it and Ghana eastern border crossing Northern Plains Wa, Bolgatanga, Mole National Park Savanna plains and north Ghana trade route and border crossing

Lying 150 kilometres north of Chad's capital, N'djamena, Lake Chad is one of Africa's great and ancient lakes, sustaining rural communities on the edge of the Sahara for millennia.

Lake Superior is where it is because of the Midwest's biggest geological feature: the Midcontinent Rift, an ancient and giant 2,000 - mile - long underground crack that starts in Lake Superior and runs south to Oklahoma and to Alabama.

The sediments, which contain evidence of Inca farming including the remains of seeds and mites that feed on llama dung, come from Marcacocha, a small lake near Cuzco, Peru, at the heart of the ancient empire.

Walter mapped likely methane deposits across the region; quantified how much methane, formed when permafrost melts, is bubbling out of current lakes; and compared that with the amount emitted from methane - laden sediments taken from ancient frozen lakes.

Lake sediments have long been a rich trove of clues to ancient human history — but often only indirectly so.

Turning over rocks across the crater, the rover has compiled evidence of ancient water — a lake fed by rivers once occupied the crater itself — and organic compounds and other chemicals essential for life.

Around West Lake, one of Hangzhou's more famous sightseeing spots, famed for its willow trees, lotus blossoms and ancient stone - arch bridges, public bike docking stations are set at every attraction.

An international team of geologists has a new explanation for how the Midwest's biggest geological feature — an ancient and giant 2,000 - mile - long underground crack that starts in Lake Superior and runs south to Oklahoma and to Alabama — evolved.

Using ancient DNA, along with the remains of pollen, plants, and animals collected from lake sediments, a new study has an answer: about 12,600 years ago.

On the heels of a Russian drilling effort that reached Lake Vostok, British and American teams also aim to penetrate ancient subglacial lakes

Today the Bodele Depression — the low point of the vast ancient basin in which modern Lake Chad lies — is the most active dust spot in the world.

With the help of a graduate student, Williams will look for a kind of mammoth proxy: sporormiella, a fungus that lives in the dung of large herbivores, and grains of ancient pollen that can reveal what kind of vegetation once grew around the lake.

Meanwhile, one of the craters in the system, Lake Avernus, was referred to as the entrance to Hades in ancient mythology.

When Sengül Aydıngün first started surveying the shores of Küçükçekmece Lake in the western suburbs of Istanbul, colleagues doubted she'd find any evidence of ancient human settlement; other researchers had already surveyed the area and hadn't turned up much.

The Sahara, which covers nearly a third of Africa, was once a lush savanna, teeming with wildlife, fish - filled lakes, and ancient humans.

To arrive at those conclusions, the researchers used sediment cores from Lake Towuti, an ancient lake on the island of Sulawesi in central IndoneLake Towuti, an ancient lake on the island of Sulawesi in central Indonelake on the island of Sulawesi in central Indonesia.

As yet, no one has touched the waters of a subglacial lake with so much as a drill bit, but a Russian group that has been coring ice over Lake Vostok to get ancient climate records is coming cllake with so much as a drill bit, but a Russian group that has been coring ice over Lake Vostok to get ancient climate records is coming clLake Vostok to get ancient climate records is coming close.

When you think of archaea — perhaps the most ancient life forms — extreme locations such as hot springs, alkaline lakes, and wastewater treatment plants likely come to mind.

If the features are lined with residual salts, as one would expect of ancient, dried - up lakes or riverbeds, NASA may target them as future landing sites.

«Madder dye extracted from roots was often used to color textiles and leather in ancient Egypt, and we see from the chemical mapping of the portrait that the artist chose to paint the noblewoman's dress with madder lake pigment, thus imitating contemporary practices.»

«As far as we know, this is the most acidic lake and groundwater system ever found outside of a volcanic area,» she says, adding that there's no evidence of ancient volcanism in the U.S. Midwest.

Ancient lakes across a huge portion of the western United States may have been so acidic their waters would have dissolved a person's skin.

A series of excavations by Jim Bowler, Alan Thorne, and others in the continental interior revealed that ancient humans had fished and collected freshwater mussels along the shores of the Willandra Lakes 50,000 years ago, possibly earlier.

Clay deposits and landforms suggest this ancient region once hosted lakes, rivers, and a delta, making it just the sort of place to dig for signs of possible martian life.

-- and by the time Darwin got there, it was generally agreed that the shelves were actually ancient beaches, each formed over hundreds of years when the glen had contained a lake — a lake that for some reason had stood at three different levels on three different multicentury occasions.

During the Last Glacial Maximum when the Earth was much colder, closed - basin lakes in currently dry parts of western North America, the Middle East and South America were much larger than they are now, as evidenced by radiocarbon dating and other testing of their ancient shorelines.

A thin layer of oxygen trapped at the bottom of an Antarctic lake seems to recreate the conditions on ancient Earth

The fossil was recovered from sedimentary rock strata that were deposited in an ancient lake roughly 55 million years ago, during the early part of the Eocene epoch.

«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.»

The team collected samples of methane from settings such as lakes, swamps, natural gas reservoirs, the digestive tracts of cows, and deep ancient groundwater, as well as methane made by microbes in the lab.

Today fossilized coral makes its way into Lake Michigan from Little Traverse Bay, near the northern tip of the state's Lower Peninsula, where the ancient rock layer is exposed.

Hakawai melvillei was a small wading bird that lived about 19 million years ago during the Miocene epoch, around an ancient subtropical lake on the edge of a floodplain, with many other waterbirds, waterfowl, crocodilians and bats.

The waters, he eventually realized, could have come from catastrophic drainage of Lake Missoula, an ancient, glacier - dammed lake in western MontLake Missoula, an ancient, glacier - dammed lake in western Montlake in western Montana.