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Utilization of high-resolution EGM2008 gravity data for geological exploration over the Singhbhum-Orissa Craton, India / S.K. Pal in Geocarto international, vol 31 n° 7 - 8 (July - August 2016)  

Public [article]  inGeocarto international > vol 31 n° 7 - 8 (July - August 2016) . - pp 783 - 802 Titre : Utilization of high-resolution EGM2008 gravity data for geological exploration over the Singhbhum-Orissa Craton, India Type de document : Article/Communication Auteurs : S.K. Pal, Auteur ; T.J. Majumdar, Auteur ; Vipin Kumar Pathak, Auteur ; et al., Auteur Année de publication : 2016 Article en page(s) : pp 783 - 802 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de géodésie spatiale [Termes IGN] analyse comparative [Termes IGN] carte géologique [Termes IGN] Earth Gravity Model 2008 [Termes IGN] European Improved Gravity Model of the Earth by New techniques [Termes IGN] géologie locale [Termes IGN] gravimétrie spatiale [Termes IGN] prospection minérale Résumé : (Auteur) High-resolution EIGEN6C4 and EGM2008 Bouguer gravity data of 2190 degree spherical harmonic over the Singhbhum-Orissa Craton, India, have been generated from the International Centre for Global Earth Models. The Bouguer gravity anomaly difference maps of (i) in situ and EIGEN6C4, (ii) in situ and EGM2008 and iii) EIGEN6C4 and EGM2008 of the study area are compared. It reveals that EIGEN6C4 has lesser systematic error than EGM2008. However, from different profile plots of Bouguer gravity, east–west horizontal derivative and north–south horizontal derivative anomalies of the in situ, EIGEN6C4 and EGM2008, it is observed that most of the signatures of lithounits and geological structural elements are delineated very well by EGM2008 and match 94–98% with those of EIGEN6C4. Further, the Bouguer gravity, east–west horizontal derivative and north–south horizontal derivative anomalies of EGM2008 data over the study area have been used effectively for identifying various lithounits and geological structural elements. Numéro de notice : A2016-444 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106049.2015.1076064 Date de publication en ligne : 11/09/2015 En ligne : http://dx.doi.org/10.1080/10106049.2015.1076064 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=81351 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
059-2016041	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Geological mapping of Jharia Coalfield, India using GRACE EGM2008 gravity data : a vertical derivative approach / Jitendra Vaish in Geocarto international, vol 30 n° 3 - 4 (March - April 2015)  

Public [article]  inGeocarto international > vol 30 n° 3 - 4 (March - April 2015) . - pp 388 - 401 Titre : Geological mapping of Jharia Coalfield, India using GRACE EGM2008 gravity data : a vertical derivative approach Type de document : Article/Communication Auteurs : Jitendra Vaish, Auteur ; S.K. Pal, Auteur Année de publication : 2015 Article en page(s) : pp 388 - 401 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de géodésie spatiale [Termes IGN] carte géologique [Termes IGN] champ de pesanteur terrestre [Termes IGN] données GRACE [Termes IGN] Earth Gravity Model 2008 [Termes IGN] Inde [Termes IGN] mine de charbon [Termes IGN] prospection minérale Résumé : (Auteur) High-resolution satellite gravity data of gravity recovery and climate experiment (GRACE) generated by Earth Gravity Model-2008 (EGM2008) have been utilised for geological mapping of the Jharia coalfield. The generated GRACE EGM2008 classical gravity data have been processed for estimation of gravity anomaly map. The gravity anomaly map has been enhanced using the first and second Vertical Derivatives techniques. Geological and structural maps of the study area have been overlapped over different derivative maps to analyse the correlation with the subsurface geological structures of the study area. Major distinct geological signatures, on different derivative maps, are correlated well with the existing geological map. Moreover, vertical derivative maps of the gravity data generated from GRACE EGM2008 model provide better agreement and understanding for geological setting of the Jharia coalfield. Numéro de notice : A2015-303 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106049.2014.905637 Date de publication en ligne : 12/05/2014 En ligne : https://doi.org/10.1080/10106049.2014.905637 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=76521 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
059-2015021	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Usage of ERS SAR data over the Singhbhum shear zone, India for structural mapping and tectonic studies / S.K. Pal in Geocarto international, vol 22 n° 4 (December 2007 - January 2008)  

Public [article]  inGeocarto international > vol 22 n° 4 (December 2007 - January 2008) . - pp 285 - 295 Titre : Usage of ERS SAR data over the Singhbhum shear zone, India for structural mapping and tectonic studies Type de document : Article/Communication Auteurs : S.K. Pal, Auteur ; T.J. Majumdar, Auteur ; A.K. Bhattacharya, Auteur Année de publication : 2007 Article en page(s) : pp 285 - 295 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] analyse comparative [Termes IGN] carte géologique [Termes IGN] géologie structurale [Termes IGN] image ERS-SAR [Termes IGN] image IRS [Termes IGN] image Landsat-TM [Termes IGN] Inde [Termes IGN] linéament [Termes IGN] lithologie Résumé : (Auteur) The extraction of lineaments and anomalous patterns in the Singhbhum Shear Zone, Jharkhand, India, has multifaceted applications for mineral exploration as well as for geological interpretation of neotectonic movements. ERS-1 SAR data are very useful for such applications because of their structural information content. A comparative study has been attempted with ERS, Landsat and IRS images for the interpretation of various geological structures over the Singhbhum Shear Zone. The Rose diagram generated from this study has shown major trends that matched well with the geological map of the area and the associated tectonic boundary as well as with the results obtained from ground based studies. Copyright Taylor & Francis Numéro de notice : A2007-539 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106040701337642 Date de publication en ligne : 19/11/2007 En ligne : https://doi.org/10.1080/10106040701337642 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28902 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
059-07041	RAB	Revue	Centre de documentation	En réserve L003	Disponible

ERS-2 SAR and IRS-1C LISS III data fusion: a PCA approach to improve remote sensing based geological interpretation / T.J. Majumdar in ISPRS Journal of photogrammetry and remote sensing, vol 61 n° 5 (January 2007)  

Public [article]  inISPRS Journal of photogrammetry and remote sensing > vol 61 n° 5 (January 2007) . - pp 281 - 297 Titre : ERS-2 SAR and IRS-1C LISS III data fusion: a PCA approach to improve remote sensing based geological interpretation Type de document : Article/Communication Auteurs : T.J. Majumdar, Auteur ; S.K. Pal, Auteur ; A.K. Bhattacharya, Auteur Année de publication : 2007 Article en page(s) : pp 281 - 297 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] analyse en composantes principales [Termes IGN] carte géologique [Termes IGN] détection de changement [Termes IGN] filtrage numérique d'image [Termes IGN] fusion d'images [Termes IGN] géologie locale [Termes IGN] image en couleur composée [Termes IGN] image ERS-SAR [Termes IGN] image IRS-LISS [Termes IGN] image optique [Termes IGN] image radar [Termes IGN] Inde [Termes IGN] interprétation automatique [Termes IGN] système d'information géographique [Termes IGN] transformation rapide de Fourier Résumé : (Auteur) Fusion of optical and synthetic aperture radar data has been attempted in the present study for mapping of various lithologic units over a part of the Singhbhum Shear Zone (SSZ) and its surroundings. ERS-2 SAR data over the study area has been enhanced using Fast Fourier Transformation (FFT) based filtering approach, and also using Frost filtering technique. Both the enhanced SAR imagery have been then separately fused with histogram equalized IRS-1C LISS III image using Principal Component Analysis (PCA) technique. Later, Feature-oriented Principal Components Selection (FPCS) technique has been applied to generate False Color Composite (FCC) images, from which corresponding geological maps have been prepared. Finally, GIS techniques have been successfully used for change detection analysis in the lithological interpretation between the published geological map and the fusion based geological maps. In general, there is good agreement between these maps over a large portion of the study area. Based on the change detection studies, few areas could be identified which need attention for further detailed ground-based geological studies. Copyright ISPRS Numéro de notice : A2007-020 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2006.10.001 En ligne : https://doi.org/10.1016/j.isprsjprs.2006.10.001 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28386 [article]

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Code-barres	Cote	Support	Localisation	Section	Disponibilité
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