|
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] |
Lima
Lima ( ; ), originally founded as Ciudad de Los Reyes (City of The Kings) is the capital and the largest city of Peru. It is located in the valleys of the Chillón River, Chillón, Rímac River, Rímac and Lurín Rivers, in the desert zone of the central coastal part of the country, overlooking the Pacific Ocean. Together with the seaside city of Callao, it forms a contiguous urban area known as the Lima Metropolitan Area. With a population of more than 9.7 million in its urban area and more than 10.7 million in its metropolitan area, Lima is one of the largest cities in the Americas. Lima was named by natives in the agricultural region known by native Peruvians as ''Limaq''. It became the capital and most important city in the Viceroyalty of Peru. Following the Peruvian War of Independence, it became the capital of the Republic of Peru (República del Perú). Around one-third of the national population now lives in its Lima Metropolitan Area, metropolitan area. The city of Li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Urzelina (volcano)
Urzelina is a civil parish in the municipality of Velas in the Portuguese islands of the Azores. The population in 2011 was 902, in an area of 13.69 km². It is situated near the south coast of the island of São Jorge. It is alternately known as São Mateus, to which the parish was named after its patron saint. History The first settlers reached this coast in the 15th century, but were isolated from Faial. Many of the early homes were built along the coast, on lowlands and flanks of the interior mountain range, interspersed in the forests. The parish received its name owing to the abundance of ''urzela'' (Roccella tinctoria) found by the first explorers and settlers, along its coastal clifftops and which later became a source of an export market, because it was used in dying. Urzela, a species of fungus, was harvested and exported to Flanders and England in the early 15th-16th centuries, thereby supporting the economies of the island, in addition to many of the islands ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tephra
Tephra is fragmental material produced by a volcanic eruption regardless of composition, fragment size, or emplacement mechanism. Volcanologists also refer to airborne fragments as pyroclasts. Once clasts have fallen to the ground, they remain as tephra unless hot enough to fuse into pyroclastic rock or tuff. Tephrochronology is a geochronological technique that uses discrete layers of tephra—volcanic ash from a single eruption—to create a chronological framework in which paleoenvironmental or archaeological records can be placed. When a volcano explodes, it releases a variety of tephra including ash, cinders, and blocks. These layers settle on the land and, over time, sedimentation occurs incorporating these tephra layers into the geologic record. Often, when a volcano explodes, biological organisms are killed and their remains are buried within the tephra layer. These fossils are later dated by scientists to determine the age of the fossil and its place within the geolo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indigenous Populations
Indigenous peoples are culturally distinct ethnic groups whose members are directly descended from the earliest known inhabitants of a particular geographic region and, to some extent, maintain the language and culture of those original peoples. The term ''Indigenous'' was first, in its modern context, used by Europeans, who used it to differentiate the Indigenous peoples of the Americas from the European settlers of the Americas and from the Sub-Saharan Africans who were brought to the Americas as enslaved people. The term may have first been used in this context by Sir Thomas Browne in 1646, who stated "and although in many parts thereof there be at present swarms of ''Negroes'' serving under the ''Spaniard'', yet were they all transported from ''Africa'', since the discovery of ''Columbus''; and are not indigenous or proper natives of ''America''." Peoples are usually described as "Indigenous" when they maintain traditions or other aspects of an early culture that is assoc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elsevier
Elsevier () is a Dutch academic publishing company specializing in scientific, technical, and medical content. Its products include journals such as ''The Lancet'', ''Cell'', the ScienceDirect collection of electronic journals, '' Trends'', the '' Current Opinion'' series, the online citation database Scopus, the SciVal tool for measuring research performance, the ClinicalKey search engine for clinicians, and the ClinicalPath evidence-based cancer care service. Elsevier's products and services also include digital tools for data management, instruction, research analytics and assessment. Elsevier is part of the RELX Group (known until 2015 as Reed Elsevier), a publicly traded company. According to RELX reports, in 2021 Elsevier published more than 600,000 articles annually in over 2,700 journals; as of 2018 its archives contained over 17 million documents and 40,000 e-books, with over one billion annual downloads. Researchers have criticized Elsevier for its high profit marg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2022 Hunga Tonga–Hunga Ha'apai Eruption And Tsunami
On 20 December 2021, an eruption began on Hunga Tonga–Hunga Ha'apai, a submarine volcano in the Tongan archipelago in the southern Pacific Ocean. The eruption reached a very large and powerful climax nearly four weeks later, on 15 January 2022. Hunga Tonga–Hunga Haʻapai is north of Tongatapu, the country's main island, and is part of the highly active Tonga–Kermadec Islands volcanic arc, a subduction zone extending from New Zealand north-northeast to Fiji.Gupta, Alok K. ''Igneous Rocks'' Mumbai, India: Allied Publishers, 1998 The eruption caused tsunamis in Tonga, Fiji, American Samoa, Vanuatu, and along the Pacific rim, including damaging tsunamis in New Zealand, Japan, the United States, the Russian Far East, Chile, and Peru. At least four people were killed, some were injured, and some remain possibly missing in Tonga from tsunami waves up to high. Two people drowned in Peru when a wave struck the coast. Preliminary data indicate that the event was probably the la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hunga Tonga–Hunga Ha'apai
''Hunga'' is a genus of plants in the family Chrysobalanaceae, described as a genus in 1979. They are native to New Guinea and New Caledonia. List of species # ''Hunga cordata'' Prance - New Caledonia # ''Hunga gerontogea'' (Schltr.) Prance - New Caledonia # ''Hunga guillauminii'' Prance - New Caledonia # ''Hunga lifouana'' (Däniker) Prance - New Caledonia, Loyalty Islands # ''Hunga longifolia'' Prance - Papua New Guinea # ''Hunga mackeeana'' Prance - New Caledonia # ''Hunga minutiflora'' (Baker f.) Prance - New Caledonia # ''Hunga myrsinoides'' (Schltr.) Prance - New Caledonia # ''Hunga novoguineensis'' Prance - Papua New Guinea # ''Hunga papuana'' (Baker f.) Prance - Papua New Guinea # ''Hunga rhamnoides'' (Guillaumin) Prance - New Caledonia References Hunga, Chrysobalanaceae genera Taxonomy articles created by Polbot {{Malpighiales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rabaul
Rabaul () is a township in the East New Britain province of Papua New Guinea, on the island of New Britain. It lies about 600 kilometres to the east of the island of New Guinea. Rabaul was the provincial capital and most important settlement in the province until it was destroyed in 1994 by falling ash from a volcanic eruption in its harbour. During the eruption, ash was sent thousands of metres into the air, and the subsequent rain of ash caused 80% of the buildings in Rabaul to collapse. After the eruption the capital was moved to Kokopo, about away. Rabaul is continually threatened by volcanic activity, because it is on the edge of the Rabaul caldera, a flooded caldera of a large pyroclastic shield. Rabaul was planned and built around the harbour area known as Simpsonhafen (Simpson Harbour) during the German New Guinea administration, which controlled the region between 1884 and formally through 1919. Rabaul was selected as the capital of the German New Guinea administratio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tonga
Tonga (, ; ), officially the Kingdom of Tonga ( to, Puleʻanga Fakatuʻi ʻo Tonga), is a Polynesian country and archipelago. The country has 171 islands – of which 45 are inhabited. Its total surface area is about , scattered over in the southern Pacific Ocean. As of 2021, according to Johnson's Tribune, Tonga has a population of 104,494, 70% of whom reside on the main island, Tongatapu. The country stretches approximately north-south. It is surrounded by Fiji and Wallis and Futuna (France) to the northwest; Samoa to the northeast; New Caledonia (France) and Vanuatu to the west; Niue (the nearest foreign territory) to the east; and Kermadec (New Zealand) to the southwest. Tonga is about from New Zealand's North Island. First inhabited roughly 2,500 years ago by the Lapita civilization, Tonga's Polynesian settlers gradually evolved a distinct and strong ethnic identity, language, and culture as the Tongan people. They were quick to establish a powerful footing acr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indonesia
Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania between the Indian and Pacific oceans. It consists of over 17,000 islands, including Sumatra, Java, Sulawesi, and parts of Borneo and New Guinea. Indonesia is the world's largest archipelagic state and the 14th-largest country by area, at . With over 275 million people, Indonesia is the world's fourth-most populous country and the most populous Muslim-majority country. Java, the world's most populous island, is home to more than half of the country's population. Indonesia is a presidential republic with an elected legislature. It has 38 provinces, of which nine have special status. The country's capital, Jakarta, is the world's second-most populous urban area. Indonesia shares land borders with Papua New Guinea, East Timor, and the eastern part of Malaysia, as well as maritime borders with Singapore, Vietnam, Thailand, the Philippines, Australia, Palau, and India ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
%2C_Guamán_Poma%2C_1616.jpg "Click for more on -> Lima")
