Of super-volcanoes and mag-stripes and things.

[kbs2244]

We don’t really have a geology type thread, so I will put this here since it occurred off Japan.


http://www.iodp.tamu.edu/scienceops/exp ... _rise.html

As a OBTW,

Check the depths they are drilling at.
As a reference, the much ballyhooed BP/Gulf of Mexico drill site was at apx 5000 feet.

[Johnny]

11,500' is close to the max depth for a modern drillship. I'm not sure they could operate and produce from that depth safely but they can certainly do some good science.

We *do* need a geology thread! Geo-Archaeology anyone?

[Minimalist]

Feel free to start one.

[Tiompan]

11,500' is close to the max depth for a modern drillship. I'm not sure they could operate and produce from that depth safely but they can certainly do some good science.

We *do* need a geology thread! Geo-Archaeology anyone?

In the old world at least it's apparent that the geology of the engraved rocks was very important . Engravings incorporate cracks and fissures into the design and often there are naturl marks that resemble cup marks . This can give an impression that the engravers may have considered the the natural markings earlier engravings .
There is also the obviously intentional choice of different qualities and colours of rocks in monuments and the deposition of quartz .
Some reasoning and experiencing the effects of volcanoes may have helped but surely only a very basic understanding if anything would have been the norm in prehistory .
George