A. Zeltsman
Looking
at the whole body of MER imagery and the rest of the data and analysis coming
in, one must conclude that the majority of rocks seen on Mars surface, are one
or another form of biologically several times recycled material – petrified
wood, animal remains in form of the rocks and sediments etc.
Evidence for the
life on Mars is mounting, and discovery by Spirit team on Sol 617 of the
apparent tree fossil - and its continued exploration for more than two weeks - are
bringing images that are likely to convince at least some of those who where
sitting on the fence.
Here is stereo
presentation of this remarkable object, likely a billion years old fossil tree.

Figure 1.

Figure 2.
Figure 3 is an
earthly fossil tree to compare.
Figure 3.
Let us point out
some features that are important here.
We suggest, that the
fragment on the right was broken off when the tree was alive, and fell off
under its weight, or under the force of wind.
Left upper edge of
the fragment is consistent with notion that it was formed when living tree was
broken. But even more telling is the blade, chipped from the wood that has been
cracked down.

Figure 4.

Figure 5.

Figure 6.
It can be suggested
that this combination is a signature feature of broken trees or branches. Here
is a stereo image of earthly branch that has been broken for comparison, with
similar blade.

Figure 7.
All this is
consistent with the MI images, which show apparent petrified wood with yearly
layers.

Figure 8.
Even more than that,
they show some small fossils of the wood tenants, conceivably of times when the
wood was rotting, a small light colored leaf on Figure 8, and a small plant on
Figure 9.

Figure 9.
For an earthly
comparison for the petrified tree surface, one can look at Picture 10.

Figure 10.
Now, lets say the
general jest of what has been described above, is mostly correct.
This would mean that
a billion years ago Mars had conditions, compatible with creation of the coal,
oil, and gas deposits. Which might explain presence of methane in Martian
atmosphere as a natural gas leak.
There are a number
of images form different locations, which can be best described as fossilized
wood.
In fact, the best
explanation of the observed imagery very well could be that most of the rocks
on Mars are remains of prehistoric fossilized trees. This totally reverses the
paradigm - and we would have to search hard for the real rocks, instead of
hunting for fossils.
A picture arises,
that couple billion years ago Mars was warmer and wetter, with an atmosphere
containing some oxygen. It was richly covered with thick forest, like Earth at
the times when coal and oil deposits have been formed.
One year a
catastrophe strikes, as the forest has grown too big and consumed a lot of
water, while the Sun was extremely active - so an extreme draught occurs. The
forest catches a huge fire, which consumes all the oxygen from atmosphere and
suffocates all the oxygen-supported life, including all trees.
The life that has
had developed since, is apparently around, but it must be able to exist without
breathing oxygen.
Consequently the
rocks seen now on Mars are result of the, possibly multiple, extinction
recycling - which should be expected, considering how much earlier than Earth
Mars must have had conditions, hospitable to life.