Subscribe options

Select your newsletters:


Please enter your email address:

@

News & Media

Latest ITER Newsline

  • Neutral beam injection | How ELISE is contributing to ITER

    ITER's neutral beam injection system is based on a radio frequency source that has been the subject of decades of development in Europe. At Max Planck Institute [...]

    Read more

  • Image of the week | Almost there

    The Tokamak Building has reached its maximum height ... in terms of concrete that is. The 'jewel box' in reinforced concrete will grow no more; instead, it will [...]

    Read more

  • Powerful lasers | A mockup to demonstrate safety

    During ITER operation, high-powered lasers will gather important diagnostic information on the properties and behaviour of the plasma, such as density, temperat [...]

    Read more

  • Cryostat | Lower cylinder revealed

    They were all there: those who designed it, those who forged it, those who assembled and welded it, and those who closely monitored the requirements and procedu [...]

    Read more

  • Europe's DEMO | What it could be like

    It looks like ITER, feels like ITER, but it's not ITER. In this depiction of what the site layout for the next-step fusion machine, DEMO, might look like in Eur [...]

    Read more

Of Interest

See archived entries

Image of the week

200 million years ago at ITER

Back in the Mesozoic, some 66 to 250 million years ago, the ITER site lay at the bottom of a shallow sea that covered most of what is now Provence.

A foreman with a sharp eye: Christopher Lebreton spotted the circular shape imprinted on a rock excavated from the platform. (Click to view larger version...)
A foreman with a sharp eye: Christopher Lebreton spotted the circular shape imprinted on a rock excavated from the platform.
The warm waters swarmed with life: marine reptiles such as ichthyosaurs and plesiosaurs, sea urchins, belemnites and the ubiquitous ammonite, resembling present-day nautiluses.

A few weeks ago, as workers excavated a gallery for the Tokamak's cooling water system, a dweller of this ancient world resurfaced.

It wasn't noticed immediately, however. "We only saw the circular shape imprinted on the rock slab once it had been delivered to the deposit area behind the construction platform," explains Christopher Lebreton, a foreman with the contractor that is performing the excavation works—SVA (Spie-Batignolles, Valérian, ADF).

The shape imprinted on the rock was that of the coiled shell of an average-size ammonite—a species which could vary in size from 20 millimetres to 2.55 metres in diameter.

According to Caroline Gamache, a geologist with Spie-Batignolles, the limestone strata where the fossil was found can be dated back 120-200 million years—a time when dinosaurs ruled the Earth and our closest parent was a tiny mouse striving to survive in the realm of the "monstrous lizards."


return to the latest published articles