zone – Shamskm: A site to exchange knowledge and solutions

New View of Rainier’s Volcanic Plumbing

By Guest PostSeptember 16, 2014Sciencebank of montreal, beat bannwart, bernd laber, caixabank, cocktail geoengineering, commerzbank, ct scans, earth, electricity, erste group, fabio keller, jeffrey shell, jordi fontanals, juvenile remains, magnetic fields, molten rock, mount rainier, patrick goetz, reservoir, ring of fire, seismic waves, tectonic plates, trade finance platform, ubs, university of utah, zone

Electrical Images Show Upward Flow of Fluids to Magma Chamber

By measuring how fast Earth conducts electricity and seismic waves, a University of Utah researcher and colleagues made a detailed picture of Mount Rainier’s deep volcanic plumbing and partly molten rock that will erupt again someday.

“This is the most direct image yet capturing the melting process that feeds magma into a crustal reservoir that eventually is tapped for eruptions,” says geophysicist Phil Wannamaker, of the university’s Energy & Geoscience Institute and Department of Civil and Environmental Engineering. “But it does not provide any information on the timing of future eruptions from Mount Rainier or other Cascade Range volcanoes.” (more…)

Floods didn’t provide nitrogen ‘fix’ for earliest crops in frigid north

By Guest PostNovember 20, 2013Environmentadvantage of cyanobacteria, arctic circle, beatriz diez, birgitta bergman, boreal habitat, canada, crops, cyanobacteria, floods, florida everglades, frigid north, infertile soils, ingela bergman, mangroves, microorganisms, nitrogen fix, northern fennoscandia, olle zackrisson, pristine floodplains, russia, scientific debate, stockholm university, Sweden, thomas deluca, tundra habitat, university of washington, us farmers, zone

Floods didn’t make floodplains fertile during the dawn of human agriculture in the Earth’s far north because the waters were virtually devoid of nitrogen, unlike other areas of the globe scientists have studied.

Instead, the hardy Norsemen and early inhabitants of Russia and Canada have microorganisms called cyanobacteria to mostly thank for abundant grasses that attracted game to hunt and then provided fodder once cattle were domesticated. The process is still underway in the region’s pristine floodplains. (more…)

Tag Archives: zone

New View of Rainier’s Volcanic Plumbing

Floods didn’t provide nitrogen ‘fix’ for earliest crops in frigid north