Chemistry 2011.org
Chemistry2011.org
All About Chemistry... 2011 and beyond

News articles about "Isotopes"

Extremely high-resolution magnetic resonance imaging

For the first time researchers have succeeded to detect a single hydrogen atom using magnetic resonance imaging which signifies a huge increase in the technology's spatial resolution In the future single atom MRI could be ... - Read More

Journey to the center of the Earth: Geochemist uses helium and lead isotopes to gain insight into makeup of planet’s deep interior

A UC Santa Barbara geochemist studying Samoan volcanoes has found evidence of the planet's early formation still trapped inside the Earth Known as hotspots volcanic island chains such as Samoa can ancient primordial signatures from ... - Read More

Method for detecting extremely rare inert gas isotopes for water dating

In the earth and environmental sciences radioactive isotopes atom variants that decay over time play a major role in age determination A radioactive isotope of the inert gas argon 39Ar for example is used to ... - Read More

High Flux Isotope Reactor Named Nuclear Historic Landmark

The High Flux Isotope Reactor or HFIR now in its 48th year of providing neutrons for research and isotope production at the Department of Energy's Oak Ridge National Laboratory has been designated a Nuclear Historic ... - Read More

Astrophysicists to probe how early universe made chemical elements

In the beginning all was hydrogen and helium plus a bit of lithium Three elements in all Today's universe however has nearly a hundred naturally occurring elements with thousands of variants isotopes and more likely ... - Read More

Discrepancy in Greenland temperatures during end of last ice age resolved

A new study of three ice cores from Greenland documents the warming of the large ice sheet at the end of the last ice age resolving a long standing paradox over when that warming occurred ... - Read More

Ironing out details of the carbon cycle: Dissolved iron in North Atlantic traced to Sahara desert

Iron is present in tiny concentrations in seawater On the order of a few billionths of a gram in a liter I did a calculation once on a ton of ocean water says Seth John ... - Read More

Ancient Arctic sharks tolerated brackish water 50 million years ago

Sharks were a tolerant bunch some 50 million years ago cruising an Arctic Ocean that contained about the same percentage of freshwater as Louisiana's Lake Ponchatrain does today says a new study involving the University ... - Read More

Team develops a geothermometer for methane formation

Methane is a simple molecule consisting of just one carbon atom bound to four hydrogen atoms But that simplicity belies the complex role the molecule plays on Earth it is an important greenhouse gas is ... - Read More

Modern ocean acidification is outpacing ancient upheaval: Rate may be ten times faster

Some 56 million years ago a massive pulse of carbon dioxide into the atmosphere sent global temperatures soaring In the oceans carbonate sediments dissolved some organisms went extinct and others evolved Scientists have long suspected ... - Read More

Richest marine reptile fossil bed along Africa's South Atlantic coast is dated at 71.5 mya

A new study uses carbon isotope dating to determine the first precise age for this bed and ties the western coast of Africa to 30 million years of global geologic records Paleontologists at Southern Methodist ... - Read More

Approaching the island of stability: Observation of the superheavy element 117

The periodic table of the elements is to get crowded towards its heaviest members Evidence for the artificial creation of element 117 has recently been obtained at the GSI Helmholtz Centre for Heavy Ion Research ... - Read More

Today's Antarctic region once as hot as California, Florida

Parts of ancient Antarctica were as warm as today's California coast and polar regions of the southern Pacific Ocean registered 21st century Florida heat according to scientists using a new way to measure past temperatures ... - Read More

Dust in the wind drove iron fertilization during ice age

Researchers from Princeton University and the Swiss Federal Institute of Technology in Zurich have confirmed that during the last ice age iron fertilization caused plankton to thrive in a region of the Southern Ocean The ... - Read More

Why did humans replace Neanderthals? Paleo diet didn't change, the climate did

Why were Neanderthals replaced by anatomically modern humans around 40 000 years ago One popular hypothesis states that a broader dietary spectrum of modern humans gave them a competitive advantage on Neanderthals Geochemical analyses of ... - Read More

Organic chemical origins in hydrothermal systems

Organic, organic, Organic
Serpentinite hosted hydrothermal systems have been suggested as likely sites for the formation of organic compounds in the abiotic conditions of early Earth that is in the absence of living organisms Such compounds were likely ... - Read More

Water cycle amplifies abrupt climate change

During the abrupt cooling at the onset of the so called Younger Dryas period 12680 years ago changes in the water cycle were the main drivers of widespread environmental change in western Europe Thus the ... - Read More

Ways of the photoelectric effect; How physicists have learned how to select them

In contrast to its apparent simplicity that brought Einstein his Nobel Prize the photoelectric effect when an electron is knocked out from its parent atom by a photon is quite complicated to analyze in general ... - Read More

Deep-sea corals record dramatic long-term shift in Pacific Ocean ecosystem

sea
Long lived deep sea corals preserve evidence of a major shift in the open Pacific Ocean ecosystem since around 1850 according to a study by researchers at the University of California Santa Cruz The findings ... - Read More

Amber provides new insights into the evolution of Earth's atmosphere: Low oxygen levels for dinosaurs

Oxygen
An international team of researchers led by Ralf Tappert University of Innsbruck reconstructed the composition of Earth's atmosphere of the last 220 million years by analyzing modern and fossil plant resins The results suggest that ... - Read More
View more "Isotopes" Articles
Social Networking

Please recommend us on Facebook, Twitter and more:

Other social media tools

Global Partners
Feedback

Tell us what you think of Chemistry 2011 -- we welcome both positive and negative comments. Have any problems using the site? Questions?

About us

Chemistry2011 is an informational resource for students, educators and the self-taught in the field of chemistry. We offer resources such as course materials, chemistry department listings, activities, events, projects and more along with current news releases.

Events & Activities

Are you interested in listing an event or sharing an activity or idea? Perhaps you are coordinating an event and are in need of additional resources? Within our site you will find a variety of activities and projects your peers have previously submitted or which have been freely shared through creative commons licenses. Here are some highlights: Featured Idea 1, Featured Idea 2.

About you

Ready to get involved? The first step is to sign up by following the link: Join Here. Also don’t forget to fill out your profile including any professional designations.

Global Partners