Calcium Carbonate Growth with the Ring Structure of Stalactite-Type Minerals in a Tuff Breccia
Microbially induced carbonate precipitation (MICP) has attracted worldwide attention as an environmentally friendly ground restoration technology in response to geohazards. This study describes the relationship between calcium carbonate growth within stalactite-type minerals formed around fractures...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-09-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/11/9/1117 |
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| author | Ryo Uenishi Hitoshi Matsubara |
| author_facet | Ryo Uenishi Hitoshi Matsubara |
| author_sort | Ryo Uenishi |
| collection | DOAJ |
| description | Microbially induced carbonate precipitation (MICP) has attracted worldwide attention as an environmentally friendly ground restoration technology in response to geohazards. This study describes the relationship between calcium carbonate growth within stalactite-type minerals formed around fractures in tuff breccia and microorganisms. Scanning electron microscopy revealed that calcium carbonate was precipitated in the interstices of rings formed in stalactite-type minerals, as if the carbonate minerals enhanced the strength of the silicate minerals. In addition, X-ray powder diffraction analysis detected that the calcium carbonates were calcite and vaterite. Moreover, microorganisms, such as diatoms and green algae, inhabited the interstices and, consequently, MICP by these microorganisms could play a role in the stability of outcrops. The stable isotope ratios of δ<sup>13</sup>C and δ<sup>15</sup>N and the mass spectral signals of the demineralized samples also encouraged diatoms and green algae to be involved in the formation of minerals. |
| first_indexed | 2024-03-10T07:47:00Z |
| format | Article |
| id | doaj.art-fd42850be3ca4874903b5b80719fd3f8 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-10T07:47:00Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-fd42850be3ca4874903b5b80719fd3f82023-11-22T12:36:09ZengMDPI AGCrystals2073-43522021-09-01119111710.3390/cryst11091117Calcium Carbonate Growth with the Ring Structure of Stalactite-Type Minerals in a Tuff BrecciaRyo Uenishi0Hitoshi Matsubara1Graduate School of Engineering and Science, University of the Ryukyus, Okinawa 903-0213, JapanFaculty of Engineering, University of the Ryukyus, Okinawa 903-0213, JapanMicrobially induced carbonate precipitation (MICP) has attracted worldwide attention as an environmentally friendly ground restoration technology in response to geohazards. This study describes the relationship between calcium carbonate growth within stalactite-type minerals formed around fractures in tuff breccia and microorganisms. Scanning electron microscopy revealed that calcium carbonate was precipitated in the interstices of rings formed in stalactite-type minerals, as if the carbonate minerals enhanced the strength of the silicate minerals. In addition, X-ray powder diffraction analysis detected that the calcium carbonates were calcite and vaterite. Moreover, microorganisms, such as diatoms and green algae, inhabited the interstices and, consequently, MICP by these microorganisms could play a role in the stability of outcrops. The stable isotope ratios of δ<sup>13</sup>C and δ<sup>15</sup>N and the mass spectral signals of the demineralized samples also encouraged diatoms and green algae to be involved in the formation of minerals.https://www.mdpi.com/2073-4352/11/9/1117calcium carbonatestalactite-type mineralsring structurediatomgreen algaemicrobially induced carbonate precipitation |
| spellingShingle | Ryo Uenishi Hitoshi Matsubara Calcium Carbonate Growth with the Ring Structure of Stalactite-Type Minerals in a Tuff Breccia Crystals calcium carbonate stalactite-type minerals ring structure diatom green algae microbially induced carbonate precipitation |
| title | Calcium Carbonate Growth with the Ring Structure of Stalactite-Type Minerals in a Tuff Breccia |
| title_full | Calcium Carbonate Growth with the Ring Structure of Stalactite-Type Minerals in a Tuff Breccia |
| title_fullStr | Calcium Carbonate Growth with the Ring Structure of Stalactite-Type Minerals in a Tuff Breccia |
| title_full_unstemmed | Calcium Carbonate Growth with the Ring Structure of Stalactite-Type Minerals in a Tuff Breccia |
| title_short | Calcium Carbonate Growth with the Ring Structure of Stalactite-Type Minerals in a Tuff Breccia |
| title_sort | calcium carbonate growth with the ring structure of stalactite type minerals in a tuff breccia |
| topic | calcium carbonate stalactite-type minerals ring structure diatom green algae microbially induced carbonate precipitation |
| url | https://www.mdpi.com/2073-4352/11/9/1117 |
| work_keys_str_mv | AT ryouenishi calciumcarbonategrowthwiththeringstructureofstalactitetypemineralsinatuffbreccia AT hitoshimatsubara calciumcarbonategrowthwiththeringstructureofstalactitetypemineralsinatuffbreccia |