Here is a list of eight important Indian stratigraphical system. 1. The Jurassic System: Jurassic System overlies Triassic System rocks in the Standard Stratigraphic Scale and is well represented in Indian Stratigraphy both in extra-Peninsular and Peninsular India. In the extra-Peninsula, the Jurassic rocks of marine facies conformably overlie in the Triassic rocks at many places such as in Spiti, [...]
Here is a list of top twelve stratigraphical systems developed in India. 1. The Archean Groups: Broadly speaking, all those rocks that are the oldest, have absolutely no evidence of existence of life (in terms of fossils) and undoubtedly form the basic, foundation rocks for all the subsequent formations in Indian stratigraphy are grouped together as Archean. Geologically, these lie [...]
Here is an essay on active and passive solar water heating (SWH) systems. Essay # 1. Passive Solar Water Heating Systems: A special type of passive system is the Integrated Collector Storage (ICS or Batch Heater) where the tank acts as both storage and solar collector. Batch heaters are basically thin rectilinear tanks with glass in front of it generally [...]