Shields ; Christine A. Linda T. Elkins-Tanton ; Linda T. Jeffrey T. Kiehl Jeffrey T. Geology 42 1 : 67— Article history received:. Abstract The Siberian Traps flood basalts have been invoked as a trigger for the catastrophic end-Permian mass extinction.
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D — Goldschmidt Abstracts Mineralogical Magazine. N — Goldschmidt Abstracts Mineralogical Magazine. Unlike wet deposition, dry deposition is difficult and expensive to measure. When acid deposition is washed into lakes and streams, it can cause some to turn acidic. The Long-Term Monitoring LTM Network measures and monitors surface water chemistry at over sites to provide valuable information on aquatic ecosystem health and how water bodies respond to changes in acid-causing emissions and acid deposition.
Skip to main content. Contact Us. What Causes Acid Rain? Vehicles and heavy equipment. Manufacturing, oil refineries and other industries. Forms of Acid Deposition Wet Deposition Wet deposition is what we most commonly think of as acid rain. This website uses cookies and similar technologies to deliver its services, to analyse and improve performance and to provide personalised content and advertising.
Information about your use of this website will be shared with Google and other third parties. Read our privacy policy. Why this happened has been the subject of considerable scientific debate with the primary suspect large-scale volcanism in the Siberian Traps.
Starting with igneous rock samples from Siberia, lead author Benjamin Black and colleagues estimated the amount of sulfur and halogens released by 27 individual eruption episodes from late-Permian volcanoes. From this, they adapted a global climate model to simulate the effects of these gases on the atmosphere. The models predicted that carbon dioxide and sulfur emissions were substantial enough to create widespread bouts of acid rain in the northern hemisphere — with pH levels reaching up to 2.
Together, these catastrophic changes to the climate may have played a major role in wiping out the majority of life on Earth. Paul Wignall , a palaeontologist at the University of Leeds, UK, seconds this appraisal — but draws notice to the fact that the acid rain effects would have been localised to the northern hemisphere.
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