Sentences with phrase «from lake cores»
When the jet stream got loopy In order to track the jet stream's behavior thousands of years ago, Bowen and his fellow researchers looked at oxygen isotope ratios from lake cores and cave formations in the eastern and western United States.
https://www.scientificamerican.com/ Not exact matches
BRANT LAKE The YMCA is trying to provide developmental programs for people of from infants to seniors - but the core group falls into the Y - Achievers program, focusing on middle and high school students.
By examining cores from the bottom of the lake, Cohen and his colleagues reconstructed a decade - by - decade profile of the lake's biological history going back 1,500 years.
To build a picture of the habitat as it crept out of the Ice Age, Willerslev's team analysed DNA in cores taken from beneath two lakes in what was the last stretch of the corridor to melt.
Between 2012 and 2014, Baranes and Woodruff collected sediment cores from lakes, looking for marine sand layers washed onshore by past extreme coastal floods.
To see into the corridor's past, the new study looked at pollen, plant, and animal fossils from nine sediment cores taken from two lakes near what was thought to have been the narrowest bottleneck in the corridor — the last part to open.
Analysis of pollen in mud cores from the bed of a lake near the Andean fortress city of Ollantaytambo, Peru, reveals that, there at least, the agricultural revolution happened very quickly, some 2700 years ago.
COVER Clouds pass over Kenya's Lake Magadi, where geologists are drilling a core to gather detailed climate data from the ancient lake Lake Magadi, where geologists are drilling a core to gather detailed climate data from the ancient lake lake bed.
The preserved layers in the core revealed that the site held a sediment record stretching back at least 14,000 years — and the spot, Lake Hill, was only a quarter of a mile away from the cave where Graham had made his discovery.
By taking sediment cores from pond and lake beds on tropical islands, scientists can determine where the band has been since A.D. 800 and where it may move in the future.
The cores of sediment from Lake Hill won't settle the general megafauna extinction debate: St. Paul's isolation likely sets it apart from whatever influence humans had on the mainland mammoth population.
An ancient record Assessing lake sediment cores from the region reaching 15,000 years into the past, a Montana State University team found whitebark pines more abundant despite higher summer temperatures and fire frequency than today.
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.
Core samples from deeper in the Lake Towuti sediment will show whether this drying evident during the last ice age also happened in previous ice ages.
Building on a previous limited study of climate warming on three Arctic lakes (Science, 21 October 1994, 416), ecologist John Smol of Queens University, Kingston, Canada, and colleagues extracted sediment cores from 46 lakes in Canada, Finland, Norway, and Russia.
Using new chemical analyses of penguin guano extracted in sediment cores from a lake on the island, the researchers unraveled the history of the penguin colony.
To track how glaciers grew and shrank over time, the scientists extracted sediment cores from a glacier - fed lake that provided the first continuous observation of glacier change in southeastern Greenland.
Gill examined data on sediment cores from the bottom of lakes, tree rings and cores from speleothems in caves.
During the warm period, the core also shows a large increase in organic matter from plants growing in and around the lake.
To study the advance and retreat of glaciers over nearly 10,000 years, scientists extracted sediment cores from the bottom of glacier - fed Kulusuk Lake in southeast Greenland.
They retrieved water and core samples from the centre of each of the lakes for analysis.
Sediment core samples drawn from Lake Titicaca, South America's largest freshwater lake, have revealed a 25,000 - year precipitation record that may rewrite the books on ancient climLake Titicaca, South America's largest freshwater lake, have revealed a 25,000 - year precipitation record that may rewrite the books on ancient climlake, have revealed a 25,000 - year precipitation record that may rewrite the books on ancient climate.
The picture you get from these cores is the same as you get if you sit on the edge of the lake today, after one of these droughts, the intermittent wobbles.
But core samples from the newfound lake reveal a rich microbial life around its periphery.
He pointed to an ice core taken from East Antarctica's Lake Vostok, which lies underneath the ice sheet.
To do the research, Sickman and his colleagues collected sediment cores from about 50 lakes in the Sierra Nevada.
The research was done by long - term measurements of lake chemistry beginning in the 1980s and the collection of long sediment cores from the lakes.
Priscu's group found a higher concentration of cells, possibly because their core sample included particles that might be rock flour from the rim of the lake.
To assess the climate in that area before and after Cantona's collapse, UC Berkeley geographers analyzed sediment cores from a lake located 20 miles south of the former city.
Nearly 20 years ago, he learned of Cantona and traveled with students to the areas three times to obtain cores from lakes near the site, most of which are maar lakes created by magma explosions.
UC Riverside - led team did long - term measurements of lake chemistry; studied sediment cores from the lakes
Here we report an observation of the YTT in Africa, recovered as a cryptotephra layer in sediments cored from Lake Malawi > 7,000 km west of the source volcano in Sumatra.
While a team of Russian scientists were drilling ice core samples from their Vostok base in Antarctica, new satellite imagery revealed the outline of a lake the size of New Jersey buried two miles underneath the ice.
Most d18O records — in caves stalagmites, lake sediment or ice cores are usually interpreted this way since most of their signal is from the rain water d18O.
When they took a sediment core from a lake originally created as part of a moat in the Danish capital of Copenhagen, they found centuries» worth of dirt, refuse and pollution particles, with the earliest mud layer dating to 1649.
While direct samples of water from subglacial Antarctic lakes have yet to be obtained, the lower 80m or so of the Vostok ice core represents lake water that progressively freezes onto the base as the ice sheet slowly traverses the lake.
The tools, flakes struck from cores, were found at Lomekwi in Kenya, west of Lake Turkana.
«We already have sediment cores from that lake, and now we are unraveling its sedimentary history and trying to get an age model there as well.»
Lake sediment cores have been used to look at ancient biodiversity levels from 6 — 12.6 thousand years before present.
But with the right preparation, including strengthening your hamstrings, quadriceps, back and core, you won't have to risk injury or suffer from the usual aches and pains, says Mike Morin, alpine program director at Stratton Mountain School, who coached the U.S. Ski Team for 10 years through the Lillihammer, Salt Lake City and Torino Winter Olympics.
In a matter of minutes one is free from the hustle and bustle of the downtown core and suddenly immersed in a world of breath - taking views (of Okanagan Lake), farmland, beautiful homes, and a plethora of fruit trees.
Paleoclimatology data are derived from natural sources such as tree rings, ice cores, corals, and ocean and lake sediments.
The Utah state school board on Friday voted 12 - 3 to withdraw from the Smarter Balanced Assessment Consortium — one of two state - based consortia working off of $ 360 million in federal Race to the Top money to have outside companies develop assessments that test the Common Core State Standards, the Salt Lake Tribune reports.
Over 4,000 common core books from National Geographic, Houghton Mifflin Harcourt, Capstone Press, Lerner Publishing, Child's World, Cherry Lake, Sleeping Bear Press and Starwalk Kids Media was all added this week.
It was launched with the 7th gen. Intel Core «Kaby Lake» processors, but now the upgraded models with a so - called 8th gen. Intel Core Kaby Lake - R processor is available too: https://www.amazon.com/Samsung-Notebook-Pro-FHD-Touch/ https://www.bestbuy.com/site/samsung-2-in-1-15-touch-screen-laptop The upgraded processor is the Intel Core i7 - 8550U processor, upgraded from the... more...
Lenovo Miix 710 processors are the latest 7th generation Intel Core «Kaby Lake» processors, ranging from the Intel Core m3 (7Y30), to the Intel Core i5 (7Y54), to the top model Intel Core i7 (7Y75) CPU.
The design is taken from the Surface Pro 4, while it is powered by the latest 7th generation Intel Core «Kaby Lake» dual - core processors, making it similar to the Teclast Tbook... morCore «Kaby Lake» dual - core processors, making it similar to the Teclast Tbook... morcore processors, making it similar to the Teclast Tbook... more...
The Chromebook x2 is a much more affordable option, plus it features a Core M3 processor from Intel's Kaby Lake generation of chips.
The Windows tablet is powered by Intel quad - core 4 - thread Apollo Lake N3450 processor from 1.10 GHz to 2.2 GHz with Intel HD Graphics 500 and it comes equipped with 6 GB DDR3 RAM, 64GB / 128 GB eMMC 5.0 ROM in order to deal with various applications, games and HD video playback.
From your vantage point you can peer into the volcano's steaming core and sit awhile on warm rocks while you take in the sweeping panorama across the shimmering water on the lake.