Bimodal volcanism Bimodal volcanism Bimodal volcanism is the eruption of both mafic and felsic lavas from a single volcanic centre with little or no lavas of intermediate composition. This type of volcanism is normally associated with areas of extensional tectonics, particularly rifts. Most occurrences of bimodal volcanism are associated with thinning of the crust and the presence of such rocks in metamorphic sequences has been used to provide evidence for past rifting events. Most examples come from areas of active continental rifting such as the Basin and Range Province. Bimodal volcanism has also been described from areas of transtension, the early phases
Body substance isolation a part of the National Standards Curriculum for Prehospital Providers and Firefighters. Types of body substance isolation included: It was postulated that BSI precautions should be practiced in environment where treaters were exposed to bodily fluids, such as: Such infection control techniques that were recommended following the AIDS outbreak in the 1980s. Every patient was treated as if infected and therefore precautions were taken to minimize risk. Other conditions which called for minimizing risks with BSI: or any combination of the above. Body substance isolation Body substance isolation is a practice of isolating all body substances (blood, urine, feces, tears,