We know Ooids from variety of environments when water is agitated and microbial activity exists, such as tidal environments, also in high salinities they better compete with other carbonate forming grains, they are also known from salt lakes, such as the one in Utah. However are they also reported from freshwater lakes?
I could find oolite layer in ancient lacustrine fans (only 1 lamellibranchs, 2 microgastorpoda, and some ostracoda), Urmia Lakes is super saturated and because of climate changes and a lot of dams, It is going to dry
Urmia lake at several years ego Artemia sp. And Green algae.
Ooids have one or probably two layers. If you want to use this information in your publications with referring me, It is honor to me me to help you with more information.
Dear Jafar do you have also experience with Akchagyl and Apsheron Formations, they are reportedly mainly consist of lacustrian and fluvial sediments, and Gastropods and Ostracods are also reported, marine environment also apparently present, the sections I came across from Pahne Kala area consists of Ooids, Gastropods and Ostrocods I wonder the fossil assemblage belongs to Pliocene or Middle-Late Miocene. As you know benthic foraminifera of Late Cenozoic are long range and are not helpful in this case. Do you think palynological study of these Formations may help us to resolve this matter.
with many thanks
and best regards
Hesam
You might find that a look at the work done by various researchers on the Green River lacustrine deposits of Colorado and Utah would be helpful. This has been done in the last decade or so.
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