Notes and Study material for Exams
Relief and Structure of Goa Goa is almost entirely covered by rocks of the Goa Group belonging to the Dharwar Super Group of the ArchaeanlProterozoic age, except for a narrow strip at the north-eastern corner occupied by Deccan Trap of the Upper Cretaceous-Lower Eocene age. The Goa Group consisting of green ‘schist species of metamorphic … Read more
Minerals Minerals are defined as solid, inorganic, naturally occurring substances with a definite chemical formula and general structure. Almost all chemical Elements in the Earth’s crust are associated with at least one mineral. They vary in color, hardness, density, crystal form, crystal size, transparency, composition, location, and abundance. Some minerals are radioactive (uranophane), while others … Read more
Here is a list of subtopics without any description for Volcanic Materials: Ash Lava Pyroclastic flow Tephra Volcanic glass Volcanic rock Volcanic materials are the products of volcanic eruptions. They can be divided into two main categories: solid and liquid. Solid volcanic materials include ash, lava, pyroclastic flows, and tephra. Liquid volcanic materials include lava … Read more