Textural and geochemical characteristics of sediments in and around Puttetti, Kanyakumari district, Tamil Nadu, India: Clues to weathering and environment
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| Format: | Recurso digital |
| Language: | English |
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Zenodo
2025
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| _version_ | 1866902333257940992 |
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| author | Athira, Aji Shinu, N Anjana, A.V.P. Pavithra, Saji S. Lasitha, S |
| author_facet | Athira, Aji Shinu, N Anjana, A.V.P. Pavithra, Saji S. Lasitha, S |
| contents | <p>Sediment samples collected from the areas in and around the Puttetti igneous suite were studied for their grain size and geochemical composition to determine the intensity of weathering and provenance. The method adopted for determining grain size is dry sieving through the vibratory sieve shaking method. Most of the samples consist of coarse sand to very fine sand, which is moderately well sorted to poorly sorted. This kind of grain size and sorting reveals variable current velocities and turbulence prevailed during the deposition, and the sediments might have been derived from different sources. The fine skewed nature of sediments suggests the addition or removal of particles, while variations in kurtosis indicate that sorting may have occurred in high-energy environments and changes in transport and deposition mechanisms. Geochemical analysis for both major and trace elements was done since it provides valuable information about the provenance and transportation processes. It is observed that the concentration of silica is very high and is beyond the calibration range. From the correlation matrix, it is noted that the silica is negatively correlated to P2O5, MgO, Fe2O3, Al2O3, Sr, Cr etc., indicating a possible presence of a felsic suite of rocks in the provenance. The distributions of Na, K, Ca, Mg, Fe, and Mn are also discussed to provide insight into the physicochemical conditions of the depositional environment. The Al2O3/TiO2 ratio suggests a mafic to felsic igneous source, while the Cu/Zn ratio indicates oxidising conditions during sedimentation.</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_15969460 |
| institution | Zenodo |
| language | eng |
| publishDate | 2025 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Textural and geochemical characteristics of sediments in and around Puttetti, Kanyakumari district, Tamil Nadu, India: Clues to weathering and environment Athira, Aji Shinu, N Anjana, A.V.P. Pavithra, Saji S. Lasitha, S Grain size analysis Major elements Trace Elements Physicochemical environment Puttetti <p>Sediment samples collected from the areas in and around the Puttetti igneous suite were studied for their grain size and geochemical composition to determine the intensity of weathering and provenance. The method adopted for determining grain size is dry sieving through the vibratory sieve shaking method. Most of the samples consist of coarse sand to very fine sand, which is moderately well sorted to poorly sorted. This kind of grain size and sorting reveals variable current velocities and turbulence prevailed during the deposition, and the sediments might have been derived from different sources. The fine skewed nature of sediments suggests the addition or removal of particles, while variations in kurtosis indicate that sorting may have occurred in high-energy environments and changes in transport and deposition mechanisms. Geochemical analysis for both major and trace elements was done since it provides valuable information about the provenance and transportation processes. It is observed that the concentration of silica is very high and is beyond the calibration range. From the correlation matrix, it is noted that the silica is negatively correlated to P2O5, MgO, Fe2O3, Al2O3, Sr, Cr etc., indicating a possible presence of a felsic suite of rocks in the provenance. The distributions of Na, K, Ca, Mg, Fe, and Mn are also discussed to provide insight into the physicochemical conditions of the depositional environment. The Al2O3/TiO2 ratio suggests a mafic to felsic igneous source, while the Cu/Zn ratio indicates oxidising conditions during sedimentation.</p> |
| title | Textural and geochemical characteristics of sediments in and around Puttetti, Kanyakumari district, Tamil Nadu, India: Clues to weathering and environment |
| topic | Grain size analysis Major elements Trace Elements Physicochemical environment Puttetti |
| url | https://doi.org/10.5281/zenodo.15969460 |