Dear Pouria,

As you may know, travertine is found in ancient/active hydrothermal zones. For example, Takab area, NW Iran, is an active hydrothermal zone which is now precipitating travertine, e. g. Solomon's Throne. So, by searching for these hydrothermal zones based on geological background, you can find travertine as dimension stones. Another examples of Iran include Sahand and Delijan areas.

Regarding Marble, metamorphosed limestone, you should try to find it in metamorphic zones. Sanandaj-Sirjan zone is an example. Also in Zanjan area, in relation to Pre-Cambrian metamorphic rocks, you can find them.

So, as you see, the most important factor in finding these dimension stones is geological background of areas and up to now, as I know, most of these dimension stones are found by those people using their geological knowledge. 

Both  types of rock are rich in CaO, and CaO is a common component of most of rocks specially limestone which is extended very well in our planet. So, maybe, using Geochemistry would not help you. 

Kind Regards,

Masoud Ovissi

Dear Masoud.

I know about this areas, but other thing is more important how can we find Travirtan or marble by Remote Sensing or other thing else. I saw some Travirtan mine near Damghan city although I think there is not hydro thermal zone.

Your statements, is absolutely true but I think this is regional conclusion.

Best of luck to you.

Pouria.

Dear Mr. Salami,

We studied freshwater limstones in a morphoclimatic environment similar to yours in Iran along the Dead Sea Transform Fault (DSTF) in Jordan (see attached paper). Please correlate these data with Google Maps and you have the combination of remote sensing, mineralogy and chemistry of travertine (freshwater limestone) useful for you field work, as I hope.

I wish you much success

H.G.Dill