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Fault and Types of Faults

Fault is a fracture or crack where two rock blocks slide past one to another. If this movement may occur rapidly, it can be causes earthquike or slowly, in the form of creep.Types of faults include strike-slip faults, normal faults, reverse faults, thrust faults, and oblique-slip faults.
Spheroidal Weathering

Weathering Types

Weathering is the combination of processes that breaking down of rocks, soil and minerals, eventually transforming into sediment. On the other hand, disintegration or alteration of the rock surface in its natural or original position through physical, chemical and biological processes induced or modified by wind, water and climate.

Bowen’s Reaction Series

Bowen's reaction series is based on observations and experiments of natural rocks, the crystallization sequence of typical basaltic magma change as they cool. It is a sorting tool according to the temperature at which they crystallize common magmatic silicate minerals.
Rock Cycle

The Rock Cycle

The rock cycle basic definiton is transitions among the three main rock types, which are metamorphic, igneous and sedimentary rocks. Each of the rocks can be altered when they are force out equilibrium conditions.The rock cycle describes how the three rock types are interrelated and how processes change from one to another over time.The rock cycle
Sandstone Geology at Clashach Cove


Stratigraphy is a branch of geology to description of rock or interpretation geologic time scale.It provides of geologic history of strata. Stratigraphic studies primarily...
The seismic method is used in geophysical prospecting process

Geophysical Methods

The physical properties of rocks have been used to devise geophysical methods that are essential in the search for minerals, oil and gas...
The seismic method is used in geophysical prospecting process


The rocks does not differ only by their macroscopic or microscopic properties studied field geologists or petrologists. They also differ by their chemical and physical properties. Hence as the rocks differ according to their origin, structure, texture, etc. they also differ by their density, magnetisation, resistivity, etc. The bad news is that the physical properties do not always clearly correlates with geological classifications and do not necessarily easily translates into the geological terms.

Types of Maps

Projections Because the shape of the world is spherical, it is difficult to represent it on a plain paper. Cartographers use projections to make...

Latitude and Longitude

Geographic coordinate system The representation of each place on the Earth by numbers and symbols is called the geographical coordinate system.The science of mapmaking...

Physical Properties of Minerals

Minerals are the materials that make up the Earth Naturally occurring,Homogeneous solid,with a definite (not fixed) chemical composition,and a highly ordered atomic arrangement,usually formed by...


An unconformity is contact between two rock units.Unconformities are typically buried erosional surfaces that can represent a break in the geologic record of hundreds of millions of years or more. It it called an unconformity because the ages of the layers of rock that are abutting each other are discontinuous at the unconformity. An expected age of layer or layers of rock is/are missing due to the erosion; and, some period in geologic time is not represented.

Plate Tectonics

Plate tectonics describes the motions of the 15 to 20 large rigid and brittle tectonic plates into which the Earth's outermost layer (called the "lithosphere") is...