Clastic rock geochemistry of the Sirohi Basin, Aravalli Craton, NW India: Implications for paleoweathering, provenance and geodynamics
Sirohi Basin of Trans-Aravalli Region, Rajasthan preserves a thick clastic sequence composed of phyllite and metasandstone. Based on their petrochemical properties, metasandstone is classified as K-feldspar rich wacke (Wacke I) and plagioclase rich wacke (Wacke II). Wacke I is characterised by highe...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-02-01
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| Series: | Geosystems and Geoenvironment |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772883822000802 |
| _version_ | 1797959558458507264 |
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| author | Tavheed Khan D. Srinivasa Sarma |
| author_facet | Tavheed Khan D. Srinivasa Sarma |
| author_sort | Tavheed Khan |
| collection | DOAJ |
| description | Sirohi Basin of Trans-Aravalli Region, Rajasthan preserves a thick clastic sequence composed of phyllite and metasandstone. Based on their petrochemical properties, metasandstone is classified as K-feldspar rich wacke (Wacke I) and plagioclase rich wacke (Wacke II). Wacke I is characterised by higher K2O, Fe2O3 and lower CaO, Na2O, and Na2O/K2O ratios than Wacke II. Chemical Index of Alteration (CIA) and the A-CN-K systematic prescribe least chemical weathering for the sediments of Wacke II, moderate for Wacke I and moderately intense for phyllite of the Sirohi Basin. Chemical traits perceived from UCC spidergrams, discrimination function diagrams, etc. in conjunction with immobile element ratios (e.g., Al2O3/TiO2, Th/Sc, La/Sc, La/Co, Th/Co, Eu/Eu*, La/SmN and Gd/YbN) establish dual-source terrains for Sirohi clastics, one with preponderance of felsic componets and other mafic plus felsic ingrediatns. The petrochemical signatures of Sirohi clastics, though suggest procurement of detritus form diffrent sources but consanguineous evolution in the Sirohi Basin, in response to extensional stresses. |
| first_indexed | 2024-04-11T00:33:23Z |
| format | Article |
| id | doaj.art-052b23a548fa49a2a33706c9bf90140d |
| institution | Directory Open Access Journal |
| issn | 2772-8838 |
| language | English |
| last_indexed | 2024-04-11T00:33:23Z |
| publishDate | 2023-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Geosystems and Geoenvironment |
| spelling | doaj.art-052b23a548fa49a2a33706c9bf90140d2023-01-07T04:17:49ZengElsevierGeosystems and Geoenvironment2772-88382023-02-0121100105Clastic rock geochemistry of the Sirohi Basin, Aravalli Craton, NW India: Implications for paleoweathering, provenance and geodynamicsTavheed Khan0D. Srinivasa Sarma1Corresponding author.; CSIR-National Geophysical Research Institute, Hyderabad 500007, IndiaCSIR-National Geophysical Research Institute, Hyderabad 500007, IndiaSirohi Basin of Trans-Aravalli Region, Rajasthan preserves a thick clastic sequence composed of phyllite and metasandstone. Based on their petrochemical properties, metasandstone is classified as K-feldspar rich wacke (Wacke I) and plagioclase rich wacke (Wacke II). Wacke I is characterised by higher K2O, Fe2O3 and lower CaO, Na2O, and Na2O/K2O ratios than Wacke II. Chemical Index of Alteration (CIA) and the A-CN-K systematic prescribe least chemical weathering for the sediments of Wacke II, moderate for Wacke I and moderately intense for phyllite of the Sirohi Basin. Chemical traits perceived from UCC spidergrams, discrimination function diagrams, etc. in conjunction with immobile element ratios (e.g., Al2O3/TiO2, Th/Sc, La/Sc, La/Co, Th/Co, Eu/Eu*, La/SmN and Gd/YbN) establish dual-source terrains for Sirohi clastics, one with preponderance of felsic componets and other mafic plus felsic ingrediatns. The petrochemical signatures of Sirohi clastics, though suggest procurement of detritus form diffrent sources but consanguineous evolution in the Sirohi Basin, in response to extensional stresses.http://www.sciencedirect.com/science/article/pii/S2772883822000802Clastic rocksGeochemistryProterozoic crustSirohi BasinAravalli Craton |
| spellingShingle | Tavheed Khan D. Srinivasa Sarma Clastic rock geochemistry of the Sirohi Basin, Aravalli Craton, NW India: Implications for paleoweathering, provenance and geodynamics Geosystems and Geoenvironment Clastic rocks Geochemistry Proterozoic crust Sirohi Basin Aravalli Craton |
| title | Clastic rock geochemistry of the Sirohi Basin, Aravalli Craton, NW India: Implications for paleoweathering, provenance and geodynamics |
| title_full | Clastic rock geochemistry of the Sirohi Basin, Aravalli Craton, NW India: Implications for paleoweathering, provenance and geodynamics |
| title_fullStr | Clastic rock geochemistry of the Sirohi Basin, Aravalli Craton, NW India: Implications for paleoweathering, provenance and geodynamics |
| title_full_unstemmed | Clastic rock geochemistry of the Sirohi Basin, Aravalli Craton, NW India: Implications for paleoweathering, provenance and geodynamics |
| title_short | Clastic rock geochemistry of the Sirohi Basin, Aravalli Craton, NW India: Implications for paleoweathering, provenance and geodynamics |
| title_sort | clastic rock geochemistry of the sirohi basin aravalli craton nw india implications for paleoweathering provenance and geodynamics |
| topic | Clastic rocks Geochemistry Proterozoic crust Sirohi Basin Aravalli Craton |
| url | http://www.sciencedirect.com/science/article/pii/S2772883822000802 |
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