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 ...

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 ...

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 ...

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, ...

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 ...

NYU researchers found that global geologic events are generally clustered at 10 different timepoints over the 260 million years, grouped in peaks or “pulses” of roughly 27.5 million years apart. AP ...

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 ...

{This article was originally posted on March 11, 2011. I've reposted it today because of another so-called "Supermoon" on May 6, 2012} I've had a number of questions lately about a couple of events ...