Petrographic criteria for establishing the copper potential in granitoid plutons     

M. S. Naik  R. K. Trivedi 《Journal of Earth System Science》1987,96(3):221-227

A petrographic investigation and its possible relevance in mineral exploration have been studied for a mineralized granitoid pluton in Malanjkhand. Using a matrix of mineralogical, textural and structural features, the types and intensities of mineralogical changes by post-magmatic metasomatic processes can be deduced from thin sections of the rocks. The resulting petrological score provides a measure of establishing the copper potential of a granitoid pluton.  相似文献   

Effect of climate change on corrosion rates of structures in Australia     

Nayruti Siddharth Trivedi  Murali Sankar Venkatraman  Clement Chu  Ivan S. Cole 《Climatic change》2014,124(1-2):133-146

As structures built now will be expected to last well past 2064 (50 years) it is vital that the effect of climate change be considered in their design and material selection. In particular changes in the rate of corrosion of metal components must be considered. To this end this study estimates the maximum likely change in the corrosion rate for the year 2070 so it can be included in current design. Changes in corrosion are estimated for 11 coastal and inland locations in Australia. For each station the climatic data (3-hourly) in 2070 is estimated by modifying current data with probable changes based on two climate change models (CSIRO: CSIRO-Mk 3.5 and MRI: MRI-CGCM 3.2.2). The former is for high global warming rate and the later the A1FI scenario. This climatic data is then run the Corrosion “predictor” (a multi-scale process model) to predict corrosion at each location. It is found that significant changes occur with corrosion in coastal locations increasing substantially, in contrast the corrosion at inland locations will decrease moderately. The increase in coastal locations is associated with a greater build up of salt due to less frequent rain evens while the reduction in inland locations is associated with a reduction in RH and thus surface wetness.  相似文献