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1808 Mystery Eruption
The 1808 mystery eruption is either a single large volcanic eruption ( VEI-6), or a series of volcanic eruptions, conjectured to have taken place in 1808–1809. This eruption is suspected of having contributed to a period of global cooling that lasted several years, analogous to how the 1815 eruption of Mount Tambora (VEI-7) led to the Year Without a Summer in 1816. A VEI-6 eruption is comparable to the 1883 eruption of Krakatoa. Background Until the 1990s, climatologists considered the known deterioration of the weather in the early 1810s as normal for the Little Ice Age. A 1991 study of Greenland and Antarctic ice cores however found a sulfate spike roughly half that of Tambora in early 1809. This faced volcanologists with the problem that this period has no recorded eruptions of the needed magnitude to generate such spike. Further research and bristlecone pine tree ring data pointed to the eruption being in 1808 rather than early 1809. Location and date The expectation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greenland Sulfate
Greenland ( kl, Kalaallit Nunaat, ; da, Grønland, ) is an island country in North America that is part of the Kingdom of Denmark. It is located between the Arctic and Atlantic oceans, east of the Canadian Arctic Archipelago. Greenland is the world's largest island. It is one of three constituent countries that form the Kingdom of Denmark, along with Denmark and the Faroe Islands; the citizens of these countries are all citizens of Denmark and the European Union. Greenland's capital is Nuuk. Though a part of the continent of North America, Greenland has been politically and culturally associated with Europe (specifically Norway and Denmark, the colonial powers) for more than a millennium, beginning in 986.The Fate of Greenland's Vikings , by Dale Mackenzie Brown, ''Archaeological Institute of America'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
