Diatomaceous Silica in Environmental Applications: A Case Study from the Lacustrine Deposit of Limnos Island, Aegean Sea, Greece
Diatomitic and clastic-volcanoclastic marly samples from the Paranisia area of Limnos Island, were studied mineralogically by X-ray diffraction (XRD), chemically by X-ray fluorescence spectroscopy (XRF) and morphologically by scanning electron microscopy (SEM-EDS), together with some physical proper...
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| Format: | Article |
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MDPI AG
2022-04-01
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| Series: | Minerals |
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| Online Access: | https://www.mdpi.com/2075-163X/12/5/523 |
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| author | Evangelos Stefanou Nikolaos Kantiranis Konstantinos Chatzicharalambous Christina Mytiglaki Michael Stamatakis George Georgiadis |
| author_facet | Evangelos Stefanou Nikolaos Kantiranis Konstantinos Chatzicharalambous Christina Mytiglaki Michael Stamatakis George Georgiadis |
| author_sort | Evangelos Stefanou |
| collection | DOAJ |
| description | Diatomitic and clastic-volcanoclastic marly samples from the Paranisia area of Limnos Island, were studied mineralogically by X-ray diffraction (XRD), chemically by X-ray fluorescence spectroscopy (XRF) and morphologically by scanning electron microscopy (SEM-EDS), together with some physical properties such as the insulation block density, specific surface area and porosity. The diatomaceous samples were classified as porcelaneous or clayey (moler type) diatomite. Opal-CT forms microplates disseminated in the groundmass and are diagenetically formed in expense of opal-A dissolution. The purest diatomaceous beds have been transformed into opaline beds (opal-CT-rich rocks), whereas the clayey beds were not influenced by diagenetic transformations. The studied diatomites from Limnos Island are suitable materials for environmental uses, as an absorbent, for the production of insulation bricks or as lightweight aggregates. |
| first_indexed | 2024-03-10T03:22:31Z |
| format | Article |
| id | doaj.art-d4ae50d620034220aacd7e73f3e77715 |
| institution | Directory Open Access Journal |
| issn | 2075-163X |
| language | English |
| last_indexed | 2024-03-10T03:22:31Z |
| publishDate | 2022-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Minerals |
| spelling | doaj.art-d4ae50d620034220aacd7e73f3e777152023-11-23T12:17:55ZengMDPI AGMinerals2075-163X2022-04-0112552310.3390/min12050523Diatomaceous Silica in Environmental Applications: A Case Study from the Lacustrine Deposit of Limnos Island, Aegean Sea, GreeceEvangelos Stefanou0Nikolaos Kantiranis1Konstantinos Chatzicharalambous2Christina Mytiglaki3Michael Stamatakis4George Georgiadis5Department of Mineralogy-Petrology-Economic Geology, School of Geology, Aristotle University of Thessaloniki, 541 24 Thessaloniki, GreeceDepartment of Mineralogy-Petrology-Economic Geology, School of Geology, Aristotle University of Thessaloniki, 541 24 Thessaloniki, GreeceOlympus S.A., 572 00 Serres, GreeceDepartment of Mineralogy-Petrology-Economic Geology, School of Geology, Aristotle University of Thessaloniki, 541 24 Thessaloniki, GreeceDepartment of Economic Geology and Geochemistry, Faculty of Geology & Geoenvironment, National and Kapodistrian University of Athens, 157 72 Athens, GreeceOlympus S.A., 572 00 Serres, GreeceDiatomitic and clastic-volcanoclastic marly samples from the Paranisia area of Limnos Island, were studied mineralogically by X-ray diffraction (XRD), chemically by X-ray fluorescence spectroscopy (XRF) and morphologically by scanning electron microscopy (SEM-EDS), together with some physical properties such as the insulation block density, specific surface area and porosity. The diatomaceous samples were classified as porcelaneous or clayey (moler type) diatomite. Opal-CT forms microplates disseminated in the groundmass and are diagenetically formed in expense of opal-A dissolution. The purest diatomaceous beds have been transformed into opaline beds (opal-CT-rich rocks), whereas the clayey beds were not influenced by diagenetic transformations. The studied diatomites from Limnos Island are suitable materials for environmental uses, as an absorbent, for the production of insulation bricks or as lightweight aggregates.https://www.mdpi.com/2075-163X/12/5/523Limnos Islanddiatomiteopal-Aopal-CTsilica diagenesisinsulation |
| spellingShingle | Evangelos Stefanou Nikolaos Kantiranis Konstantinos Chatzicharalambous Christina Mytiglaki Michael Stamatakis George Georgiadis Diatomaceous Silica in Environmental Applications: A Case Study from the Lacustrine Deposit of Limnos Island, Aegean Sea, Greece Minerals Limnos Island diatomite opal-A opal-CT silica diagenesis insulation |
| title | Diatomaceous Silica in Environmental Applications: A Case Study from the Lacustrine Deposit of Limnos Island, Aegean Sea, Greece |
| title_full | Diatomaceous Silica in Environmental Applications: A Case Study from the Lacustrine Deposit of Limnos Island, Aegean Sea, Greece |
| title_fullStr | Diatomaceous Silica in Environmental Applications: A Case Study from the Lacustrine Deposit of Limnos Island, Aegean Sea, Greece |
| title_full_unstemmed | Diatomaceous Silica in Environmental Applications: A Case Study from the Lacustrine Deposit of Limnos Island, Aegean Sea, Greece |
| title_short | Diatomaceous Silica in Environmental Applications: A Case Study from the Lacustrine Deposit of Limnos Island, Aegean Sea, Greece |
| title_sort | diatomaceous silica in environmental applications a case study from the lacustrine deposit of limnos island aegean sea greece |
| topic | Limnos Island diatomite opal-A opal-CT silica diagenesis insulation |
| url | https://www.mdpi.com/2075-163X/12/5/523 |
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