News articles tagged with 'mineral'
Frozen comet had a watery past, University of Arizona scientists find
— 6 Apr 2011 15:46 | AstronomyFor the first time, scientists have found convincing evidence for the presence of liquid water in a comet, shattering the current paradigm that comets never get warm enough to melt…
Evidence poor for link between biomarkers and risk of CV events for patients with kidney disease
— 16 Mar 2011 13:16 | HealthEven though clinical practice guidelines for patients with chronic kidney disease recommend specific treatment target levels for serum phosphorus, parathyroid hormone, and calcium to…
Opalinus Clay as a potential host rock for nuclear waste repositories
— 8 Mar 2011 14:29 | ChemistryScientists at Johannes Gutenberg University Mainz (JGU), Germany, have studied natural claystone in the laboratory for more than four years in order to determine how the radioactive…
Oxygen isotope analysis tells of the wandering life of a dust grain 4.5 billion years ago
— 4 Mar 2011 14:45 | AstronomyScientists have performed a micro-probe analysis of the core and outer layers of a pea-sized piece of a meteorite some 4.57 billion years old to reconstruct the history of its formation,…
Tiny 3-D images shed light on origin of Earth's core
— 18 Dec 2010 14:27 | Geology and palaeontologyTo answer the big questions, it often helps to look at the smallest details. That is the approach Stanford mineral physicist Wendy Mao is taking to understanding a major event in Earth's…
Mars volcanic deposit tells of warm and wet environment
— 31 Oct 2010 18:16 | AstronomyRoughly 3.5 billion years ago, the first epoch on Mars ended. The climate on the red planet then shifted dramatically from a relatively warm, wet period to one that was arid and cold.…
Measuring changes in rock
— 22 Oct 2010 17:31 | Geology and palaeontologyThe capture and storage of carbon dioxide in deep geologic formations, a strategy for minimising the impacts of greenhouse gases on global warming, may currently be technologically…
Tea leaves identified using neural networks
— 1 Oct 2010 10:30 | BiologyA team of chemists from the University of Seville (US) has managed to distinguish between different kinds of tea leaves on the basis of their mineral content and by using artificial…
High pressure experiments reproduce mineral structures 1,800 miles deep
— 24 Sep 2010 11:44 | Geology and palaeontologyUniversity of California, Berkeley, and Yale University scientists have recreated the tremendous pressures and high temperatures deep in the Earth to resolve a long-standing puzzle:…
Scientists report new insights into the moon's rich geologic complexity
— 17 Sep 2010 09:44 | AstronomyThe moon is more geologically complex than previously thought, scientists report Sept. 17 in two papers published in the journal Science…