I cannot deny my training :-)

This is a view of Earth about 3.0 to 2.5 billion years ago. A very 
different place indeed. No continents to speak of, only volcanic 
islands; oceans with huge quantities of dissolved iron (greenish tint); 
atmosphere without oxygen and lots of methane and othe toxic gases 
(reddish tint); a Moon which is closer than today (huge tides); days a 
bit longer than today by a couple of hours.

A most significant change will come at about 2.4 billion years ago: the 
Great Oxygenation Event. That will be my next scene in this series.

Thomas

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Attachments:
Download 'early earth - pre-bif_01.png' (549 KB)

Preview of image 'early earth - pre-bif_01.png'

The direction of the light on the moon does not match the apparent position of
the sun.

Or is that artistic license?

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Thomas de Groot <tho### [at] degrootorg> wrote:

> This is a view of Earth about 3.0 to 2.5 billion years ago. A very
> different place indeed. No continents to speak of, only volcanic
> islands; oceans with huge quantities of dissolved iron (greenish tint);
> atmosphere without oxygen and lots of methane and othe toxic gases
> (reddish tint); a Moon which is closer than today (huge tides); days a
> bit longer than today by a couple of hours.
>
> A most significant change will come at about 2.4 billion years ago: the
> Great Oxygenation Event. That will be my next scene in this series.
>
> Thomas



I like it and I think it's an interesting topic for a series.

Regards,

simone

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Thomas de Groot <tho### [at] degrootorg> wrote:
> I cannot deny my training :-)
>
> This is a view of Earth about 3.0 to 2.5 billion years ago. A very
> different place indeed. No continents to speak of, only volcanic
> islands; oceans with huge quantities of dissolved iron (greenish tint);
> atmosphere without oxygen and lots of methane and othe toxic gases
> (reddish tint); a Moon which is closer than today (huge tides); days a
> bit longer than today by a couple of hours.
>
> A most significant change will come at about 2.4 billion years ago: the
> Great Oxygenation Event. That will be my next scene in this series.
>
> Thomas

beautifully executed and nice subject.

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Thomas de Groot <tho### [at] degrootorg> wrote:
> ... days a
> bit longer than today by a couple of hours.

Weren't they a bit shorter, with the Earth spinning faster back then?

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On 28-6-2012 22:40, gonzo wrote:
> The direction of the light on the moon does not match the apparent position of
> the sun.
>
> Or is that artistic license?
>

Neither. It is an effect of the sun on the type 3 media. There is only 
one light source.

Thomas

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On 29-6-2012 5:05, Cousin Ricky wrote:
> Thomas de Groot<tho### [at] degrootorg>  wrote:
>> ... days a
>> bit longer than today by a couple of hours.
>
> Weren't they a bit shorter, with the Earth spinning faster back then?

Ouch!!! Of course! My bad. I wonder what I was thinking.... ;-)

Thomas

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On 29-6-2012 2:39, Simone wrote:

> I like it and I think it's an interesting topic for a series.
>
Thanks. This is the second image. The first came in January (topic Early 
Earth) but needs some more work.

Thomas

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On 29-6-2012 4:48, nemesis wrote:
s
>
> beautifully executed and nice subject.
>
>

Thanks indeed. Fascinating subject indeed.

Thomas

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For the sake of comparison: this image uses scattering type 5 with 
eccentricity 0.8 and a bit lower scattering colour.

Personally, I prefer the first image.

Thomas

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Attachments:
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Preview of image 'early earth - pre-bif_02.png'