The continental volcanism, oceanic volcanism and mid-ocean ridge volcanism emit Hg to the atmosphere and ocean. Mercury in atmosphere deposit to aquatic and terrestrial systems via wet or dry ...

Earth's geologic activity, including extinctions, may follow a 26-million-year cycle. This cycle could be caused by comet showers resulting from the Sun's passage through the Milky Way's plane. The ...

Forbes contributors publish independent expert analyses and insights. David Bressan is a geologist who covers curiosities about Earth. A new statistical analysis of 260 million years of geological ...

Are catastrophic geological events, like massive volcanic eruptions, random— or do they follow a specific cycle? It’s a question geologists have long asked, but one that’s been difficult to answer ...

Geologic activity on Earth appears to follow a 27.5-million-year cycle, giving the planet a 'pulse,' according to a new study. Geologic activity on Earth appears to follow a 27.5-million-year cycle, ...

Geologic activity on Earth appears to follow a 27.5-million-year cycle, giving the planet a "pulse," according to a new study published in the journal Geoscience Frontiers. "Many geologists believe ...

Mayhem and destruction -- the geologic events that make Earth a deadly planet! We will explore the origin and evolution of Earth and life, extraterrestrial impacts, mass extinctions, earthquakes and ...

Geologic time scales are critical to understanding the timing, duration, and connection of geologic events. They are not static, and can be improved with research, integration, and refinements ...