‘Indicator’ carbonaceous phyllite/graphitic schist in the Archean Kundarkocha gold deposit, Singhbhum orogenic belt, eastern India: Implications for gold mineralization vis-a-vis organic matter

Orogenic gold deposits: A proposed classification in the context of their crustal distribution and relationship to other gold deposit types

The so-called ‘mesothermal’ gold deposits are associated with regionally metamorphosed terranes of all ages. Ores were formed during compressional to transpressional deformation processes at convergent plate margins in accretionary and collisional orogens. In both types of orogen, hydrated marine sedimentary and volcanic rocks have been added to continental margins during tens to some 100 milli...

Noble gases fingerprint a metasedimentary fluid source in the Macraes orogenic gold deposit, New Zealand

The world-class Macraes orogenic gold deposit (∼10Moz resource) formed during the late metamorphic uplift of a metasedimentary schist belt in southern New Zealand. Mineralising fluids, metals and metalloids were derived from within the metasedimentary host. Helium and argon extracted from fluid inclusions in sulphide mineral grains (three crush extractions from one sample) have crustal signatur...

MODELLING THE As-Au ASSOCIATION IN HYDROTHERMAL GOLD MINERALIZATION: EXAMPLE OF ZARSHURAN DEPOSIT, NW IRAN

The Prevalence of Myopia Vis-à-vis the Type of Diet in Young Adults in India

Nurture’ and ‘nature’ interact to produce myopia. This study probed the relation of myopia with the type of diet i.e. vegetarian or non-vegetarian, in young adults in India. One hundred forty eight young adults were tested for myopia and the odds of the vegetarian and non-vegetarian participants being affected were calculated. These were subjected to test of statistical significance. We report ...

Organizing the Unorganized: Trade Union Response Vis-à-vis the Unorganized Sector in India