Plate Tectonics The Tectonic Globe™ The Plate Tectonic Globe™ The Plate Tectonic Globe™ is a globe unlike any other currently on the market. Its unique hand-crafted design illustrates clearly and accurately Earth's crustal tectonic features in vivid relief. The Plate Tectonic Globe™ captures the essence of Earth's dynamic character by depicting tectonic plate boundaries at mid-ocean ridges, subduction zones, and continental collision zones. Plate Tectonics : Subduction Zones When two oceanic plates collide, the younger of the two plates, because it is less dense,* will ride over the edge of the older plate. *[Oceanic plates grow more dense as they cool and move further away from the Mid-Ocean Ridge]. (Image: Keith-Wiess Geological Laboratories; Rice University) The older, heavier plate bends and plunges steeply through the athenosphere, and descending into the earth, it forms a trench that can be as much as 70 miles wide, more than a thousand miles long, and several miles deep. The Marianas Trench, where the enormous Pacific Plate is descending under the leading edge of the Eurasian Plate, is the deepest sea floor in the world.
Plate Tectonics Quicktime versionAVI version Animated gifs Last 750 million years: [1.04 MB] [506 KB] [261 KB] Last 750 million years in reverse: [1.04 MB] [506 KB] From 750 mya to the beginning of the Paleozoic: [294 KB] [166 KB] From 750 mya to the beginning of the Mesozoic: [532 KB] [284 KB] [156 KB]
Plate tectonics Plate tectonics Image source: Pacific Ring of Fire by Gringer (Wikipedia) Earth Earth Earth is a complex, dynamic system we do not yet fully understand. The Earth system, like the human body, comprises diverse components that interact in complex ways. We need to understand the Earth's atmosphere, lithosphere, hydrosphere, cryosphere, and biosphere as a single connected system. Our planet is changing on all spatial and temporal scales. The purpose of NASA's Earth science program is to develop a scientific understanding of Earth's system and its response to natural or human-induced changes, and to improve prediction of climate, weather, and natural hazards. Tractor Beam Technology @CoffinDodger (If the typos crap. Blame my keyboard): Reminds me of the movie "The Forgotten " When people got yanked into the sky. It was awesome..I screamed lol. Kinda like the Skyline trailer but extremely faster and one person at a time.
Supervolcano eruption mystery solved 6 January 2014Last updated at 08:28 ET By James Morgan Science reporter, BBC News If the Yellowstone supervolcano erupted the impact would be catastrophic Scientists have made a breakthrough in their efforts to understand what causes so-called supervolcanoes to erupt. Science On a Sphere Playlist Builder ../ftp_mirror/atmosphere/lightning/media/thumbnail_small.jpg Annual Lightning Flash Rate Map dataset.php?id=6 Annual Lightning Flash Rate Map Description Sound Healers Association History of the Sound Healers Association The Sound Healers Association was founded in 1982 as an organization dedicated to the research and awareness of the uses of sound and music as therapeutic and transformational modalities. The work that began in the pioneering meetings described below continues to expand today. The SOUND HEALERS LETTERS A historical perspective by Jonathan Goldman The Sound Healers Association (formally New England Sound Healers) met monthly from the beginning of 1982 through 1989.
PACIFIC RING OF FIRE Pacific Ring of Fire The Pacific Ring of Fire (or just The Ring of Fire) is an area where large numbers of earthquakes and volcanic eruptions occur in the basin of the Pacific Ocean. In a 40,000 km (25,000 mi) horseshoe shape, it is associated with a nearly continuous series of oceanic trenches, volcanic arcs, and volcanic belts and/or plate movements. The Ring of Fire has 452 volcanoes and is home to over 75% of the world's active and dormant volcanoes. It is sometimes called the circum-Pacific belt or the circum-Pacific seismic belt. About 90%] of the world's earthquakes and 81% of the world's largest earthquakes occur along the Ring of Fire.
Climate Change, Deforestation, Biomes and Ocean Currents, Plankton, Endangered Species - Earth Web Site Click for more detail Thermohaline Change Evidence is growing that the thermohaline current may be slowed or stopped by cold fresh water inputs to the Arctic and North Atlantic oceans. This could occur if global warming is sufficient to cause large scale melting of arctic sea ice and the Greenland ice sheet. Such a change in the current may be gradual (over centuries) or very rapid (over a few years). Either would cause planet wide changes in climate.
Terraforming Transplanting seas to inland ocean lakes? A good idea for the Middle East? The two century-old and highly respected Japanese engineering giant Shimizu has hatched a wild and crazy proposal to rehabilitate the desert for human use. Their idea is to move vast amounts of seawater along canals that would track deep into desert landmasses to create a series of connected huge inland seas measuring 30 km (18 miles) across. Small cities could then be created within the gigantic seawater “lakes,” on artificial islands. Each seawater lake with its city would spaced apart along connecting canals measuring 150 km (93 miles) between each seawater lake city.