Mahogany Posted November 2, 2017 Share Posted November 2, 2017 found in miocene rocks, lacustrine environment. Link to comment Share on other sites More sharing options...
ynot Posted November 2, 2017 Share Posted November 2, 2017 Welcome to TFF! Looks like cone in cone deposit. Or it could be an alge. Do You have a side view? Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
Carl Posted November 2, 2017 Share Posted November 2, 2017 I don't think this is cone-in-cone. Looks quite different. I think it might be a calcitic cave formation. Or less likely, a stromatolite. Link to comment Share on other sites More sharing options...
Mahogany Posted November 2, 2017 Author Share Posted November 2, 2017 (edited) Hello all. Now i think they are calcite precipitations around an rod like fossile. It might reworked on the shore by tide, wind, waves and time by time it get bigger as a snowball around the central fossile body. Tomorrow i'll plan to took side photos for new insights. Edited November 2, 2017 by Mahogany more explanation Link to comment Share on other sites More sharing options...
westcoast Posted November 2, 2017 Share Posted November 2, 2017 I agree with @Carl looks like stromatolite which can be found in freshwater deposits. Not cone in cone. Link to comment Share on other sites More sharing options...
JohnBrewer Posted November 2, 2017 Share Posted November 2, 2017 Stromatolite for me too John Map of UK fossil sites Link to comment Share on other sites More sharing options...
piranha Posted November 2, 2017 Share Posted November 2, 2017 Stromatolite counterpoint: http://www.thefossilforum.com/index.php?/topic/55912-morocco-stromatolite/&do=findComment&comment=595300 1 Link to comment Share on other sites More sharing options...
ynot Posted November 2, 2017 Share Posted November 2, 2017 To tell if it is a cave calcite You can take a small piece (from the edge) and crush it. Then put some vinegar on it to see of it fizzes. I agree that it is not cone in cone, I should have looked closer. Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
abyssunder Posted November 2, 2017 Share Posted November 2, 2017 Was it found in an area with hot springs? It looks like a concretionary structure with concentric growths formed by precipitated mineral like calcium carbonate. Pamukkale " We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. " Thomas Mann My Library Link to comment Share on other sites More sharing options...
piranha Posted November 2, 2017 Share Posted November 2, 2017 The UO geologist agrees with this assessment: 37 minutes ago, piranha said: Stromatolite counterpoint: http://www.thefossilforum.com/index.php?/topic/55912-morocco-stromatolite/&do=findComment&comment=595300 "These are concretions, from episodic cementation, perhaps annual by calcite in groundwater. These look like the ones from the Cretaceous of Morocco, which I have seen in the field." Link to comment Share on other sites More sharing options...
abyssunder Posted November 2, 2017 Share Posted November 2, 2017 reference: M. Özkul et al. 2013. Comparison of the Quaternary travertine sites in the Denizli extensional basin based on their depositional and geochemical data. Sedimentary Geology 294: 179–204 Try to compare the patterns. " We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. " Thomas Mann My Library Link to comment Share on other sites More sharing options...
westcoast Posted November 3, 2017 Share Posted November 3, 2017 Some travertines can be classified as stromatolites. It would be necessary to identify thin algal or cyanobacterial layers between the concentric mineral layers. Link to comment Share on other sites More sharing options...
Mahogany Posted November 4, 2017 Author Share Posted November 4, 2017 (edited) I revisited the field, Surprisingly i could't find it. I took more photos of neighbouring rocks/fossiles which are conformable layers these may give new ideas about the deposition environment. Edited November 4, 2017 by Mahogany size edit Link to comment Share on other sites More sharing options...
Mahogany Posted November 4, 2017 Author Share Posted November 4, 2017 https://drive.google.com/open?id=0B65u18nxwdOGNVEwUllDVFE3UGc https://drive.google.com/open?id=0B65u18nxwdOGNnZpWFJiN2xwWHc One side one hole other side has two holes... Link to comment Share on other sites More sharing options...
Mahogany Posted November 4, 2017 Author Share Posted November 4, 2017 https://drive.google.com/open?id=0B65u18nxwdOGZjB4NWs3bF83RU0 https://drive.google.com/open?id=0B65u18nxwdOGRDVXUFVHVXBrWWs https://drive.google.com/open?id=0B65u18nxwdOGTnl0OHpvNU5CTk0 more photos from the succession rocks Link to comment Share on other sites More sharing options...
Mahogany Posted November 4, 2017 Author Share Posted November 4, 2017 The region that im currently visiting at the aegen sea coasts of asia minor where these areas, has heat anomaly but this heat anomaly is a recent phenomenon. These rocks are known as miocene. If these peculiarites are related to geothermal activity, the heat anomaly started while these rocks deposited or more recently before uplifting the rocks might be affected by geothermal activity. Link to comment Share on other sites More sharing options...
ynot Posted November 4, 2017 Share Posted November 4, 2017 4 hours ago, Mahogany said: more photos from the succession rocks Please upload the pictures directly here as links tend to disappear and some TFF users do not like to follow links to look at the pictures. Thank You, Tony 1 Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
abyssunder Posted November 5, 2017 Share Posted November 5, 2017 Also, please provide with more accuracy the location of your site. I'm wondering if they couldn't be Rhizoliths . images excerpt from R.A. Owen et al. 2008. Mineralogy and origin of rhizoliths on the margins of saline, alkaline Lake Bogoria, Kenya Rift Valley. Sedimentary Geology 203: 143 -163 excerpt from A. E. Erginal et al. 2013. Depositional Characteristics of Carbonate-Cemented Fossil Eolian Sand Dunes: Bozcaada Island, Turkey. Journal of Coastal Research, Vol. 29, No. 1: 78-85 " We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. " Thomas Mann My Library Link to comment Share on other sites More sharing options...
Mahogany Posted November 6, 2017 Author Share Posted November 6, 2017 Location Sığacık(TEOS) / Seferihisar / İzmir Link to comment Share on other sites More sharing options...
Bathollovian Posted March 15, 2018 Share Posted March 15, 2018 Indeed a lot of travertine (senso lato) deposit in this area! The paper behind is very informative and may help you to understand this kind of deposits and the context http://onlinelibrary.wiley.com/doi/10.1111/sed.12075/pdf Regards, Bathollovian Link to comment Share on other sites More sharing options...
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