SUBDUCTION ZONES and ISLAND ARCS. Subduction Zones are where cool lithospheric plates sink back into the mantle. It takes about 50 my for the ocean lithosphere that formed in the hot (>1000C) environment at mid-ocean ridges to cool to an equilibrium state and sink to its maximum depth below sea-level.
Ebola generally starts with flu-like symptoms. Though it's known for the extreme hemorrhagic symptoms -- the bleeding out of the eyes, etc. -- not everyone will experience these. In fact, only 20 percent of people will have [these extreme symptoms] Bhadelia said.
The worst Ebola virus outbreak ever is ravaging Liberia, Sierra Leone, and Guinea.So far, the disease has killed 670 people and infected more than 1,000, including an American doctor and aid worker. One reason why Ebola is so terrifying is that thereâs no cure, and the fatality rate is roughly 60 to 90 percent.he worst Ebola virus outbreak ever is ravaging Liberia, Sierra Leone, and Guinea. So far, the disease has killed 670 people and infected more than 1,000, including an American doctor and aid worker. One reason why Ebola is so terrifying is that thereâs no cure, and the fatality rate is roughly 60 to 90 percent.