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Giant Diamonds, Buried Miles Below Earth’s Surface by nurudeen181(m): 3:34pm On Jun 03, 2021 |
A new study has suggested that the presence of
diamonds deep beneath the Earth could explain why
earthquakes occur at such depths, claiming that super-hot
rocks release water that weakens surrounding rocks and
triggers quakes.
The study follows earlier hypotheses on superdeep
earthquakes and explores whether water stored hundreds
of kilometers below the Earth’s surface may be
responsible for the phenomena.
An earlier explanation, although partially discounted as
scientists didn’t know why there would be water 300km
below the Earth’s surface, suggested that fluid in the
mantle may weaken rocks around it and cause
earthquakes. Some earthquakes in the mantle transition
zone are some of the strongest ever recorded.
A team of researchers including Steven Shirey, a
geochemist at the Carnegie Institution for Science, took a
closer look at why water might be down there. They
considered how water might permeate tectonic plates,
infiltrating the slabs in a number of ways. Among these
was that water may be locked in the minerals that formed
as molten rock, or that wet sediment accumulated as
slabs moved across the ocean floor, or that ocean water
infiltrated the slabs as they bent and fractured.
The researchers then found that, once some rocks in the
slabs reached temperatures above 580°C, they were less
able to hold water – in theory such temperatures would
be reached the closer the slab moved towards the
Earth’s core. As water leaves the rock, it would then
disrupt other rocks around it, triggering earthquakes.
According to Shirey and his team, the mineral-rich water
released by rocks would fuel diamond formation.
The authors contend that further research is needed to
fully understand the fluid-triggered mechanism for deep
earthquakes. They add that their new theory is in many
ways easy to integrate into existing dominant theories on
superdeep activity. |
Re: Giant Diamonds, Buried Miles Below Earth’s Surface by hslbroker2(m): 3:37pm On Jun 03, 2021 |
Pictures or I don't believe |
Re: Giant Diamonds, Buried Miles Below Earth’s Surface by nurudeen181(m): 3:37pm On Jun 03, 2021 |
nurudeen181:archeologist should dig more, they should dig a little further |
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