<<there would be some traces of Martian civilization on Mars today, in the form of metal alloys or technology (given that they had space travel), which would not have been wiped out by these dust storms in that time if a rock statue hasn't. But there is no such evidence of technology or metal alloys on Mars>>
Dona,
it is your assumption, not mine, that Martians "had space travel".
They could be in the Stone Age, and have carved statue of Lamb.
Also it is your assumption, not mine, that their Lamb is the same lamb
as the Christianity Lamb.
There is a Lamb statue on Mars, so there has been life and Civilization over there.
Thats all
ES