-
Categories
-
Pharmaceutical Intermediates
-
Active Pharmaceutical Ingredients
-
Food Additives
- Industrial Coatings
- Agrochemicals
- Dyes and Pigments
- Surfactant
- Flavors and Fragrances
- Chemical Reagents
- Catalyst and Auxiliary
- Natural Products
- Inorganic Chemistry
-
Organic Chemistry
-
Biochemical Engineering
- Analytical Chemistry
-
Cosmetic Ingredient
- Water Treatment Chemical
-
Pharmaceutical Intermediates
Promotion
ECHEMI Mall
Wholesale
Weekly Price
Exhibition
News
-
Trade Service
Figure: Copper-rich minerals indicate extensive volcanic activity during the end of the Permian mass extinction in different areas of southern China (A: Taoshujing area; B: Lubei area; C: Guanbachong; D: Taoshujing locality; Ai Fan :Longmendong location)
Source: Zhang Hong, Nanjing Institute of Geology and Palaeontology
A group of scientists discovered another force that may have contributed to a mass extinction event 250 million years ago
The study, published in the journal "Science Advances", looked at the End of Permian Mass Extinction (EPME), which was the most serious extinction event in the past 500 million years and wiped out 80% to 90% of species on land and sea
"When we look closely at the extinction of the geological record at the time, we found that the global environmental disaster at the end of the Permian may have multiple causes in marine and non-marine species," said Michael Rampino, a professor in the Department of Biology at New York University
For decades, scientists have been studying what caused this global ecological disaster.
The "Science Progress" team consists of more than 20 researchers, including scientists from Nanjing University, Guangzhou Institute of Geochemistry, Smithsonian National Museum of Natural History, and Montclair State University.
Specifically, they discovered minerals and related deposits, especially copper and mercury, on the land of South China.
Rampino explained: "Atmospheric sulfuric acid aerosols from volcanic eruptions may have contributed to the rapid global cooling of several degrees, which was before the severe warming that occurred during the mass extinction at the end of the Permian
The research team’s findings indicate that the eruption of the Siberian shield was not the only cause of mass extinctions at the end of the Permian.
