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Formation and Mode of Preservation of Fossils
Formation of Fossil: A fossil is the preserved remains or terraces of a dead organism. Fossils can be formed in...
Fabric in Sedimentary Rocks: Definition, Types, and Importance
What is Fabric: Fabric means the orientation of grains. It is a property of grain aggregates. Any non-spherical object...
Types of Evolution
Types of evolution shape how species change over time. Divergent evolution splits one species into two, convergent...
Crystallography and Minerals
Types of Metamorphic Reactions
Metamorphic Reaction: The study of metamorphic reactions provides vital information about the pressure and temperature...
Non-Foliated Rocks: Definition and Types.
Non-foliated rocks are metamorphic rocks without a layered structure, forming under uniform pressure or due to mineral...
Foliated Rocks and Their Types in Metamorphism
Foliated rocks include slate, phyllite, schist, gneiss, and migmatite. Each type varies in grain size, mineral...
Economic & Historical Geology
Method of grain size
Grain size classifies sedimentary particles from coarse gravel to fine clay using scales like Udden’s and Atterberg’s....
Geological Time Scale
What is the Geological Time Scale? The geological time scale is a system geologists use to subdivide the great span of...
What is an ore?
Ore is a naturally occurring sediment or rock deposit that contains one or two or more number of economically valuable...
Petrology
Formation and Mode of Preservation of Fossils
Formation of Fossil: A fossil is the preserved remains or terraces of a dead organism. Fossils can be formed in...
Intergrowth Texture and Its Common Types
Intergrowth texture forms when two minerals crystallize together or through exsolution in igneous rocks. Common types...
Types of Metamorphic Texture
Types of Metamorphic Texture form due to varying pressure and temperature conditions. They are classified into...
Geomorphology
Fabric in Sedimentary Rocks: Definition, Types, and Importance
What is Fabric: Fabric means the orientation of grains. It is a property of grain aggregates. Any non-spherical object...
Types of Evolution
Types of evolution shape how species change over time. Divergent evolution splits one species into two, convergent...
Sphericity: Definition, Measurement, and Importance
Sphericity measures how closely a particle’s shape resembles a sphere. It helps in understanding grain durability,...