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The structurally controlled copper–gold (Cu–Au) mineralization in the Suwara area in the southern part of the Bundelkhand craton, Central India, is hosted within quartz reefs traversing older granitoids. Mineralization is distinctly associated with hydrothermal alteration (potassic, chloritic and iron alteration in the ore zone and Kmetasomatism in the wall rocks). Field observations and laboratory evidence confirm the Fe–Cu–Au association in the study area. Sulphide mineralization is represented by pyrite, chalcopyrite, covellite, chalcocite and bornite occurring as disseminations, stringers and specks within the altered quartz veins, with gold occurring as fine isolated disseminations within quartz and iron oxides. Chemical analysis of surface and subsurface samples showed promising values for Cu (up to 1.0%) and Au (up to 450 ppb) content. Fluid inclusion studies indicated the occurrence of saline mineral fluids (Na– K–Cl-bearing) with the presence of H2O–CO2–CH4 in the mineral system. Overall characteristics of the mineralization and alteration patterns of the prospect indicate that it probably belongs to an iron oxide–copper–goldtype set-up for mineralization. The present study on Cu–Au mineralization from the southern Bundelkhand craton will have significant implications for further exploration and research in the area. [ABSTRACT FROM AUTHOR]

Highly altered granitoids in the western part of Bundelkhand craton around Kanchanpur and Thuni villages in Shivpuri district, Madhya Pradesh, India, are significantly associated with copper-molybdenum-tungsten mineralization which is manifested as stringers, blebs, clots and fine specks of chalcopyrite, pyrite, molybdenite and scheelite and as vein-fillings associated with hydrothermal alteration within the ore zone and adjacent host rocks. The cumulative strike length of the zone of mineralization (NW-SE) and associated alteration is around 3.5 km. Various mineral assemblages, viz. Kfeldspar-biotite-chlorite, K-feldspar-sericite-chlorite and quartz-epidote-chlorite-sericite indicate intense hydrothermal alteration in the area. Analytical results have shown anomalous values for Cu (up to 1530 ppm), Mo (up to 4080 ppm) and W (up to 1449 ppm). Field observations and chemical analysis have been further supplemented by ore microscopic, petrographic, geochemical and EPMA studies to identify sulphide phases (of Fe, Cu and Mo) and scheelite. All the field and laboratory studies collectively indicate a probable hydrothermal origin of mineralization in the study area. The present study on Cu, Mo and W mineralization of economic grade in the western Bundelkhand craton has important implications for further metallogenic studies and mineral exploration in the area. [ABSTRACT FROM AUTHOR]

Cytomegalovirus retinitis is the leading cause of blindness in adults and children with acquired immunodeficiency syndrome (AIDS). Although clinical trials on therapy exist for adults, management of cytomegalovirus retinitis in children is not as well-documented. This report describes the clinical course of a 3-year-old child with cytomegalovirus retinitis. After initial failure with single-agent ganciclovir intravenous treatment, early institution of combined treatment with foscarnet and ganciclovir halted progression of the retinitis. This case report highlights the aggressive nature of cytomegalovirus retinitis in children and the consideration of early combined therapy compared to adult patients.