News tagged with hematite
Deep-sea rocks point to early oxygen on Earth
Space & Earth / Earth Sciences
Mar 24, 2009 |
4.9 / 5 (14) |
1
Red jasper cored from layers 3.46 billion years old suggests that not only did the oceans contain abundant oxygen then, but that the atmosphere was as oxygen rich as it is today, according to geologists.
Search results for hematite
Prussian blue linked to the origin of life
Dec 14, 2009 |
4.7 / 5 (6) |
0
A team of researchers from the Astrobiology Centre (INTA-CSIC) has shown that hydrogen cyanide, urea and other substances considered essential to the formation of the most basic biological molecules can be ...
Banded rocks reveal early Earth conditions, changes
Space & Earth / Earth Sciences
Oct 11, 2009 |
4.8 / 5 (16) |
1
(PhysOrg.com) -- The strikingly banded rocks scattered across the upper Midwest and elsewhere throughout the world are actually ambassadors from the past, offering clues to the environment of the early Earth ...
It's a grind to make Mars red
Space & Earth / Space Exploration
Sep 18, 2009 |
4.6 / 5 (5) |
2
(PhysOrg.com) -- The widespread idea that Mars is red due to rocks being rusted by the water that once flooded the red planet may be wrong. Recent laboratory studies show that the red dust may be formed by ...
The minerals on Mars influence the measuring of its temperature
Space & Earth / Space Exploration
Jul 14, 2009 |
3 / 5 (4) |
0
A team of researchers from the CSIC-INTA Astrobiology Centre in Madrid has confirmed that the type of mineralogical composition on the surface of Mars influences the measuring of its temperature. The study ...
Microscope reveals how bacteria 'breathe' toxic metals
Mar 16, 2009 |
5 / 5 (1) |
0
Researchers are studying some common soil bacteria that "inhale" toxic metals and "exhale" them in a non-toxic form.
Sensitive laser instrument could aid search for life on Mars
Space & Earth / Space Exploration
Oct 15, 2008 |
3.8 / 5 (6) |
1
Minuscule traces of cells can be detected in a mineral likely present on Mars, a new study shows. The results, obtained using a technique developed at the U.S. Department of Energy's Idaho National Laboratory, could help ...
Nanoscience will change the way we think about the world
Nanotechnology / Nanomaterials
Mar 20, 2008 |
4.1 / 5 (20) |
0
The ubiquity of mineral nanoparticles in natural waters, the atmosphere, and in soils and their intriguing properties provide Earth scientists with another dimension in which to understand our planet.
Rock: Electrons run through it
Mar 06, 2008 |
4.5 / 5 (10) |
0
If the Flintstones had electricity, their wires might have been made of rock. New results in Science Express show that a chunk of hematite can conduct electrons under certain chemical conditions. In addition, ...
Archaeologist 'strikes gold' with finds of ancient nasca iron ore mine in Peru
Other Sciences / Archaeology & Fossils
Jan 29, 2008 |
4.5 / 5 (14) |
0
A Purdue University archaeologist discovered an intact ancient iron ore mine in South America that shows how civilizations before the Inca Empire were mining this valuable ore.
What makes Mars magnetic?
Aug 10, 2007 |
4.5 / 5 (24) |
0
So how have these rocks hung onto their magnetic directions and what do they tell us about Mars? Strangely, the answer to these questions might be sitting here on Earth.
List of search results for hematite
