Matches in SemOpenAlex for { <https://semopenalex.org/work/W2896687697> ?p ?o ?g. }
Showing items 1 to 91 of
91
with 100 items per page.
- W2896687697 abstract "Geita Hill is a world-class gold deposit located in north-western Tanzania and hosted within an ironstone-dominated sedimentary package, intruded by diorite dykes and sills. The host rocks were metamorphosed to greenschist facies and show a complex deformation history comprising early ductile, and late brittle-ductile events. The regional metamorphic assemblage at the deposit is characterised by Bt + Chl + Act + Kfs ± Phg ± Mt ± Po ± Py. The gold-related alteration overprints the regional metamorphism, and manifests as a series of silicification and sulfidation fronts, and/or microfracture and vein networks. Gold is closely associated with secondary pyrite, and occurs as free-Au and gold tellurides. The mineralized vein/microfracture networks contain Bt and Kfs as primary accessory minerals. The mineralising alteration is overprinted by barren, multiphase quartz-carbonate and carbonate-chlorite veins, characterised by the assemblage Ca + Sd + Chl ± Qtz ± Py ± Ba. The close association between gold and biotite in the mineralized vein/microfracture networks and the scarcity of retrograde chlorite makes the Geita Hill deposit ideal to test the change of the biotite short-wave infrared (SWIR) spectral response with the proximity to the gold alteration. SWIR spectra were collected from three well-characterised drill holes that intercepted the gold mineralization and the results were compared to the gold grades. The SWIR data shows that there is a good correlation between the biotite spectral response and the gold grades. The position of the 2250 nm biotite absorption feature is changing systematically as a function of the ore proximity indicating that SWIR can be used to trace gold mineralization and has the potential to be a powerful exploration tool if used in conjunction with well characterised mineral paragenesis." @default.
- W2896687697 created "2018-10-26" @default.
- W2896687697 creator A5002056008 @default.
- W2896687697 creator A5010957032 @default.
- W2896687697 creator A5037339637 @default.
- W2896687697 creator A5042585545 @default.
- W2896687697 creator A5043265656 @default.
- W2896687697 creator A5075195854 @default.
- W2896687697 date "2017-06-01" @default.
- W2896687697 modified "2023-09-27" @default.
- W2896687697 title "Short-wavelength infrared spectroscopy as a tool for characterising hydrothermal alteration at the Geita Hill gold deposit, Tanzania" @default.
- W2896687697 hasPublicationYear "2017" @default.
- W2896687697 type Work @default.
- W2896687697 sameAs 2896687697 @default.
- W2896687697 citedByCount "0" @default.
- W2896687697 crossrefType "journal-article" @default.
- W2896687697 hasAuthorship W2896687697A5002056008 @default.
- W2896687697 hasAuthorship W2896687697A5010957032 @default.
- W2896687697 hasAuthorship W2896687697A5037339637 @default.
- W2896687697 hasAuthorship W2896687697A5042585545 @default.
- W2896687697 hasAuthorship W2896687697A5043265656 @default.
- W2896687697 hasAuthorship W2896687697A5075195854 @default.
- W2896687697 hasConcept C109007969 @default.
- W2896687697 hasConcept C112764850 @default.
- W2896687697 hasConcept C114793014 @default.
- W2896687697 hasConcept C118552586 @default.
- W2896687697 hasConcept C127313418 @default.
- W2896687697 hasConcept C146588470 @default.
- W2896687697 hasConcept C151730666 @default.
- W2896687697 hasConcept C156622251 @default.
- W2896687697 hasConcept C15744967 @default.
- W2896687697 hasConcept C17409809 @default.
- W2896687697 hasConcept C199289684 @default.
- W2896687697 hasConcept C26687426 @default.
- W2896687697 hasConcept C2776062231 @default.
- W2896687697 hasConcept C2777202286 @default.
- W2896687697 hasConcept C2777229588 @default.
- W2896687697 hasConcept C2777844515 @default.
- W2896687697 hasConcept C2778583526 @default.
- W2896687697 hasConcept C2779870107 @default.
- W2896687697 hasConcept C37045145 @default.
- W2896687697 hasConcept C62074269 @default.
- W2896687697 hasConcept C79927612 @default.
- W2896687697 hasConceptScore W2896687697C109007969 @default.
- W2896687697 hasConceptScore W2896687697C112764850 @default.
- W2896687697 hasConceptScore W2896687697C114793014 @default.
- W2896687697 hasConceptScore W2896687697C118552586 @default.
- W2896687697 hasConceptScore W2896687697C127313418 @default.
- W2896687697 hasConceptScore W2896687697C146588470 @default.
- W2896687697 hasConceptScore W2896687697C151730666 @default.
- W2896687697 hasConceptScore W2896687697C156622251 @default.
- W2896687697 hasConceptScore W2896687697C15744967 @default.
- W2896687697 hasConceptScore W2896687697C17409809 @default.
- W2896687697 hasConceptScore W2896687697C199289684 @default.
- W2896687697 hasConceptScore W2896687697C26687426 @default.
- W2896687697 hasConceptScore W2896687697C2776062231 @default.
- W2896687697 hasConceptScore W2896687697C2777202286 @default.
- W2896687697 hasConceptScore W2896687697C2777229588 @default.
- W2896687697 hasConceptScore W2896687697C2777844515 @default.
- W2896687697 hasConceptScore W2896687697C2778583526 @default.
- W2896687697 hasConceptScore W2896687697C2779870107 @default.
- W2896687697 hasConceptScore W2896687697C37045145 @default.
- W2896687697 hasConceptScore W2896687697C62074269 @default.
- W2896687697 hasConceptScore W2896687697C79927612 @default.
- W2896687697 hasLocation W28966876971 @default.
- W2896687697 hasOpenAccess W2896687697 @default.
- W2896687697 hasPrimaryLocation W28966876971 @default.
- W2896687697 hasRelatedWork W15168252 @default.
- W2896687697 hasRelatedWork W1973562035 @default.
- W2896687697 hasRelatedWork W1979386983 @default.
- W2896687697 hasRelatedWork W1993749546 @default.
- W2896687697 hasRelatedWork W2011878012 @default.
- W2896687697 hasRelatedWork W2034928848 @default.
- W2896687697 hasRelatedWork W2150038412 @default.
- W2896687697 hasRelatedWork W2159559982 @default.
- W2896687697 hasRelatedWork W2220267590 @default.
- W2896687697 hasRelatedWork W2503498572 @default.
- W2896687697 hasRelatedWork W2797718482 @default.
- W2896687697 hasRelatedWork W2911002669 @default.
- W2896687697 hasRelatedWork W2951833327 @default.
- W2896687697 hasRelatedWork W2985209213 @default.
- W2896687697 hasRelatedWork W3010426287 @default.
- W2896687697 hasRelatedWork W3013672591 @default.
- W2896687697 hasRelatedWork W3034682618 @default.
- W2896687697 hasRelatedWork W3039432794 @default.
- W2896687697 hasRelatedWork W3044569437 @default.
- W2896687697 hasRelatedWork W3166261497 @default.
- W2896687697 isParatext "false" @default.
- W2896687697 isRetracted "false" @default.
- W2896687697 magId "2896687697" @default.
- W2896687697 workType "article" @default.