FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2401673648> ?p ?o ?g. }

• W2401673648 endingPage "97" @default.
• W2401673648 startingPage "86" @default.
• W2401673648 abstract "Coastal cliffs fringing the Arabian Sea near Varkala exhibits the Warkalli Formation of the Tertiary sequence of Kerala, South India, with well-marked occurrence of jarosite associated with other hydrous mineral phases of phyllosilicate family in a palaeo-lacustrine depositional environment. Sandy phyllosilicates dominate the mineral assemblage, but jarosite occurs as a prominent secondary phase formed during acid-sulphate alteration of iron sulphide in this area. Here, we discuss about the potentiality of spectroscopic techniques to identify the possible mineral phases in the collected samples. The samples from the coastal cliffs have been characterized by hyperspectral analysis (VIS-NIR-SWIR), X-ray Diffraction (XRD), Fourier Transform Infra-red Reflectance (FTIR), Electron Probe Microanalysis (EPMA) and Laser Raman spectroscopy. The spectral and chemical analyses have confirmed the jarosite as natrojarosite and phyllosilicate as kaolinite. Other accessory phases have also been identified through XRD. FTIR spectroscopy has played a major role in identifying the major hydrous bonds between the minerals. VIS-NIR-SWIR spectra show several optimum spectral features at 910 nm, 1470 nm, 1849–1864 nm (in the form of a doublet), 1940 nm and 2270 nm, which could be utilised to locate jarosite in the remotely-sensed data. X-ray diffraction peaks helped in the identification of maximum number of minerals (kaolinite, smectite, quartz, feldspar, pyrite, marcasite and hematite) and the variation in jarosite content in the samples. We propose the formation of jarosite in the region by a seasonal, local and temporary development of acidic conditions. Abundance of organic matter in a fluvio-lacustrine environment has developed anaerobic conditions by removing available oxygen through decomposition of organic matter containing sulphur compounds. The sulphur thus liberated combines with hydrogen from water to develop acidic conditions and resulted in the formation of jarosite. The occurrence of jarosite in Warkalli Formation suggests on and off supply of water during diagenesis. Jarosite has been detected as a prominent deposit in several regions on Mars by Mars Exploration rover Opportunity and Mars Reconnaissance Orbiter-Compact Reconnaissance Imaging Spectrometer for Mars (CRISM). This study of jarosite formation in terrestrial environment will influence our understanding on the mineral precipitation, diagenesis and hydration processes on Mars. Additionally, it also shows the importance of spectroscopic techniques like Raman spectrometry to be used in future missions to Mars to further validate the results of orbital spectroscopy." @default.
• W2401673648 created "2016-06-24" @default.
• W2401673648 creator A5015630682 @default.
• W2401673648 creator A5015990420 @default.
• W2401673648 creator A5020614371 @default.
• W2401673648 creator A5029634464 @default.
• W2401673648 creator A5081662047 @default.
• W2401673648 date "2016-11-01" @default.
• W2401673648 modified "2023-09-27" @default.
• W2401673648 title "Spectral and chemical characterization of jarosite in a palaeolacustrine depositional environment in Warkalli Formation in Kerala, South India and its implications" @default.
• W2401673648 cites W1982394387 @default.
• W2401673648 cites W1984706078 @default.
• W2401673648 cites W1987531893 @default.
• W2401673648 cites W1991625408 @default.
• W2401673648 cites W1993522499 @default.
• W2401673648 cites W1996888404 @default.
• W2401673648 cites W1999940263 @default.
• W2401673648 cites W2001890209 @default.
• W2401673648 cites W2024881919 @default.
• W2401673648 cites W2029349145 @default.
• W2401673648 cites W2031445615 @default.
• W2401673648 cites W2032591202 @default.
• W2401673648 cites W2041160783 @default.
• W2401673648 cites W2042173708 @default.
• W2401673648 cites W2043151888 @default.
• W2401673648 cites W2045791708 @default.
• W2401673648 cites W2058121670 @default.
• W2401673648 cites W2060168045 @default.
• W2401673648 cites W2060364113 @default.
• W2401673648 cites W2062192005 @default.
• W2401673648 cites W2068496413 @default.
• W2401673648 cites W2072563602 @default.
• W2401673648 cites W2073479177 @default.
• W2401673648 cites W2081783838 @default.
• W2401673648 cites W2081890688 @default.
• W2401673648 cites W2094519334 @default.
• W2401673648 cites W2096386827 @default.
• W2401673648 cites W2099172822 @default.
• W2401673648 cites W2113098875 @default.
• W2401673648 cites W2117325609 @default.
• W2401673648 cites W2121593050 @default.
• W2401673648 cites W2138402683 @default.
• W2401673648 cites W2146236300 @default.
• W2401673648 cites W2150361164 @default.
• W2401673648 cites W2151171163 @default.
• W2401673648 cites W2329645323 @default.
• W2401673648 cites W2397145143 @default.
• W2401673648 doi "https://doi.org/10.1016/j.saa.2016.05.035" @default.
• W2401673648 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/27285473" @default.
• W2401673648 hasPublicationYear "2016" @default.
• W2401673648 type Work @default.
• W2401673648 sameAs 2401673648 @default.
• W2401673648 citedByCount "12" @default.
• W2401673648 countsByYear W24016736482018 @default.
• W2401673648 countsByYear W24016736482019 @default.
• W2401673648 countsByYear W24016736482020 @default.
• W2401673648 countsByYear W24016736482021 @default.
• W2401673648 countsByYear W24016736482022 @default.
• W2401673648 crossrefType "journal-article" @default.
• W2401673648 hasAuthorship W2401673648A5015630682 @default.
• W2401673648 hasAuthorship W2401673648A5015990420 @default.
• W2401673648 hasAuthorship W2401673648A5020614371 @default.
• W2401673648 hasAuthorship W2401673648A5029634464 @default.
• W2401673648 hasAuthorship W2401673648A5081662047 @default.
• W2401673648 hasConcept C109007969 @default.
• W2401673648 hasConcept C126753816 @default.
• W2401673648 hasConcept C127313418 @default.
• W2401673648 hasConcept C138411078 @default.
• W2401673648 hasConcept C151730666 @default.
• W2401673648 hasConcept C156622251 @default.
• W2401673648 hasConcept C165205528 @default.
• W2401673648 hasConcept C17409809 @default.
• W2401673648 hasConcept C178790620 @default.
• W2401673648 hasConcept C185592680 @default.
• W2401673648 hasConcept C199289684 @default.
• W2401673648 hasConcept C2775929177 @default.
• W2401673648 hasConcept C2776062231 @default.
• W2401673648 hasConcept C2776222295 @default.
• W2401673648 hasConcept C2776432453 @default.
• W2401673648 hasConcept C2777840564 @default.
• W2401673648 hasConcept C2778520076 @default.
• W2401673648 hasConcept C2779131772 @default.
• W2401673648 hasConcept C2779870107 @default.
• W2401673648 hasConcept C2779899878 @default.
• W2401673648 hasConcept C40212044 @default.
• W2401673648 hasConcept C544778455 @default.
• W2401673648 hasConceptScore W2401673648C109007969 @default.
• W2401673648 hasConceptScore W2401673648C126753816 @default.
• W2401673648 hasConceptScore W2401673648C127313418 @default.
• W2401673648 hasConceptScore W2401673648C138411078 @default.
• W2401673648 hasConceptScore W2401673648C151730666 @default.
• W2401673648 hasConceptScore W2401673648C156622251 @default.
• W2401673648 hasConceptScore W2401673648C165205528 @default.
• W2401673648 hasConceptScore W2401673648C17409809 @default.
• W2401673648 hasConceptScore W2401673648C178790620 @default.
• W2401673648 hasConceptScore W2401673648C185592680 @default.
• W2401673648 hasConceptScore W2401673648C199289684 @default.
• W2401673648 hasConceptScore W2401673648C2775929177 @default.

• next