CornelDumitru Posted February 1, 2022 Share Posted February 1, 2022 (edited) Hi! Is this a stromatolite? I picked up this rock on the premises of the Teleajen oil refinery in Prahova county, Romania. I have seen a chert wedge in a limestone boulder once upon a time, but this stone is different. It has layers of chert and carbonate, right? I grinded and polished the stone. Here is a close-up from the carbonatic area (fizzles with acid): Any idea how old are these rocks when found in S-E Europe? Thanks! Edited February 1, 2022 by CornelDumitru grammar Link to comment Share on other sites More sharing options...
Ludwigia Posted February 1, 2022 Share Posted February 1, 2022 26 minutes ago, CornelDumitru said: Any idea how old are these rocks when found in S-E Europe? The geology of the area is Miocene/Pliocene 23-2.4mya. The stone does not look like a stromatolite. Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Rockwood Posted February 1, 2022 Share Posted February 1, 2022 Agreed. I don't know what it is, but I'm pretty sure it isn't a stromatolite. They typically are layered more like that flakey pastry. Link to comment Share on other sites More sharing options...
hemipristis Posted February 2, 2022 Share Posted February 2, 2022 9 hours ago, CornelDumitru said: Hi! Is this a stromatolite? I picked up this rock on the premises of the Teleajen oil refinery in Prahova county, Romania. I have seen a chert wedge in a limestone boulder once upon a time, but this stone is different. It has layers of chert and carbonate, right? I don't see any indications of it being stromatolite. I concur with your description, and conclude that it is just a rock 'Those who cannot remember the past are condemned to repeat it.' George Santayana Link to comment Share on other sites More sharing options...
Yoda Posted February 2, 2022 Share Posted February 2, 2022 Agree with the others above. Doesn't look like a Stromatolite MotM August 2023 - Eclectic Collector Link to comment Share on other sites More sharing options...
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