Researchers identified the mineral as hydrated silica
Washington: American scientists claim to have found evidence that suggests Mars had a warm and wet climate which could have supported life some 3.5 billion years ago.
A team, led by planetary geologists at Brown University, found mounds of a mineral deposited on a volcanic cone less than 3.5 billion years ago that speak of a warm and wet
Mentawai Islands (Indonesia): Choppy seas, poor visibility and a shortage of boats are slowing the delivery of tons of food, water and blankets to the most remote corners of the Indonesian islands hit hardest by a tsunami that killed more than 400 people and crushed entire villages, an official said in a statement on Friday.
Hundreds of kilometres away, a volcano on island of Java that kill
Rescuers battled rough seas Tuesday to reach remote Indonesian islands pounded by a 10-foot tsunami that swept away homes, killing at least 113 people.
Indonesia ordered thousands of people to evacuate from around Mount Merapi on Monday as it raised the alert for its most active volcano to red, warning of a possible imminent eruption.
Seismic activity has escalated dramatically at the volcano on the densely populated island of Java, with increasing lava spurts and about 500 multi-phased volcanic earthquakes recorded over the weekend, said offi
Magma has worked its way up to just under the surface in a remote region of northwest Saudi Arabia, causing a flurry of small to moderate quakes and threatening to form a new volcano, researchers said Sunday.
A swarm of 30,000 quakes shook the region of Harrat Lunayyir from May to June last year and opened an 5-mile long rift, the U.S.
Dotted with active volcanoes, Central America is seeking to tap its unique geography to produce green energy and cut dependence on oil imports as demand for electricity outstrips supply.
Sitting above shifting tectonic plates in the Pacific basin known to cause earthquakes and volcanic eruptions, the region has huge potential for geothermal power generated by heat stored deep in the earth.
Volcanic eruptions release a large amount of sulphur dioxide. This is oxidized to sulphate and can then form sulphate aerosol, which can affect the Earth's radiation balance. Here, past volcanic eruptions and atmospheric conditions are investigated by using sulphur and triple oxygen isotope measurements of atmospheric sulphate preserved in the rock record.
