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I just got back from a weekend in the andes which was very relaxing. Swiming in hot springs (40 C). And if that is to hot one could always take a dip into the river Tinguiririca (4-5 C)

You could look at footprints from dinosaurios, these tracks were left by a Iguanoddonte and other dinosaurios in the mud, that after million years, were solidified and returned to arise, already petrified and with the printed tracks, when the mountain range of the andes formed.

I could definitly recommend that place.

Thats me and my daughter looking down at the village below.

Best regards, Anders

tech2000 wrote:I just got back from a weekend in the andes which was very relaxing. Swiming in hot springs (40 C). And if that is to hot one could always take a dip into the river Tinguiririca (4-5 C)

You could look at footprints from dinosaurios, these tracks were left by a Iguanoddonte and other dinosaurios in the mud, that after million years, were solidified and returned to arise, already petrified and with the printed tracks, when the mountain range of the andes formed.

I could definitly recommend that place.

Thats me and my daughter looking down at the village below.

Best regards, Anders

Hi Anders,

I do enjoy this recent increased exposition of various aspects of life in South America by you, Guillermo, ElChristou,...!

As you know I do have a rather intense personal and professional relation to South America. Not only since I spent quite a number of months and various visits in different South American countries...

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So, just go guys, tells us more!!
++++++++++++++

Bye Fridger

t00fri wrote:Hi Anders,

I do enjoy this recent increased exposition of various aspects of life in South America by you, Guillermo, ElChristou,...!

As you know I do have a rather intense personal and professional relation to South America. Not only since I spent quite a number of months and various visits in different South American countries...

++++++++++++++
So, just go guys, tells us more!!
++++++++++++++

Bye Fridger

Ok Fridger, here are the footprints of the dinosaurios. This is at the border to Argentina.

Bye, Anders

Nice! So I suppose the Dinos got pretty hot legs, while walking over that still very soft area?

Bye Fridger

These footprints were likely cast on sand/mud and then preserved by sedimentary processes. So I guess everything was "forged in cold".

Toti wrote:These footprints were likely cast on sand/mud and then preserved by sedimentary processes. So I guess everything was "forged in cold".

That sounds kind of amazing, given the /active/ weather cicle?? Why should the footprints stay conserved for such a long time in MUD? Sedimentary processes are VERY slow on the timescale of weather effects, typically washing out animal footprints quickly. Perhaps there was a landslide shortly after the footprints arose and they "rockyfied" before being uncovered again much later?

Perhaps somebody just made the footprints to play a joke on us

Bye Fridger

t00fri wrote:

Toti wrote:These footprints were likely cast on sand/mud and then preserved by sedimentary processes. So I guess everything was "forged in cold".

That sounds kind of amazing, given the /active/ weather cicle?? Why should the footprints stay conserved for such a long time in MUD? Sedimentary processes are VERY slow on the timescale of weather effects, potentially washing out animal footprints quickly. Perhaps there was a landslide shortly after the footprints arose and they "rockyfied" before being uncovered again much later?

Perhaps somebody just made the footprints to play a joke on us

Bye Fridger

It is amazing, yes. Keep in mind that dinosaurs walked Earth for ~160 million years (225-65 million years ago) Other "less famous" tetrapods existed since much earlier (~360 m.y.a).
Yet the number of footprint tracks discovered so far is quite small.
This clearly shows that the preservation conditions of such vestiges must be extremely unlikely to achieve. The landslide is a possibility. Another one is a combination of sustained dries and clay-rich dust carried by winds that provided protection from subsequent rains.