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 hemorrhagic fever is a viral disease caused by Ebola virus that results in nonspecific symptoms (see symptom section of this article) early in the disease and often causes internal and external hemorrhage (bleeding) as the disease progresses.
Ebola virus is one of a group of viruses that cause a hemorrhagic fever syndrome. Symptoms of Ebola virus infection are similar to those produced by other hemorrhagic fever viruses and include fever, fatigue, malaise, reddened eyes, weakness, joint pain, muscle pain, headache, nausea, vomiting, and diarrhea. Patients experience a loss of appetite and often stomach pains. Some patients experience sore throat, rash, cough, hiccups, chest pain, breathing problems, and difficulty swallowing. Later, as the disease progresses and worsens in severity, symptoms can include bleeding at various sites within or outside of the body. Medically Reviewed by a Doctor on 8/11/2014.