12 нояб. 2024 г. · Although many scientists contend that this event was caused by one or more large comets or asteroids striking Earth, others maintain that it was ...

This extinction pulse is typically attributed to the Late Ordovician glaciation, which abruptly expanded over Gondwana at the beginning of the Hirnantian and ... Impact on life · Anoxia and euxinia · Other potential factors

18 мая 2020 г. · Late Ordovician mass extinction caused by volcanism, warming, and anoxia, not cooling and glaciation | Geology | GeoScienceWorld.

The evidence indicates that climate change caused the extinctions. A major ice age is known to have occurred in the southern hemisphere and climates cooled ...

29 апр. 2019 г. · This sudden temperature change caused many marine species to die. - Causal agent: Volcanic outgassing 1. - Killing agent: carbon-dioxide 1. We ...

2 нояб. 2021 г. · Most research suggests that the extinction was associated with a cooling climate or changes in oxygenation of the ocean.

23 окт. 2022 г. · A combination of lowering of sea level and glacially driven cooling were likely driving agents for the Ordovician mass extinction. 0; 0; 0 ...

11 сент. 2015 г. · Toxic metals unleashed by depleted oxygen in the oceans may have helped trigger one of the largest extinctions of life in the planet's history, new research ...

The first three are associated with habitat restriction and loss in greenhouse worlds driven by volcanicity; the fourth is associated by a meteorite strike ...