Sand dunes are the build up of sand formed due to water or wind process under the influence of gravity. It typically takes the shape of a ridge, mound or hill that far from the tidal influence. The area which is associated with the dunes is called dune system or dune complex. A collection of […]
Sand Dunes and their classification Read More »
There are several types of geological formations that trap naturally occurring energy resource. They are categorized as either ‘conventional’ or ‘unconventional’ resources. Conventional Unconventional Conventional oil and gas is trapped in naturally porous reservoir formations that are capped with impermeable rock strata. When intercepted by a well, oil and gas is able to move to
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Ocean is much more deeper than the elevation of the land area on the continent. As you can imagine that the highest point in the continent is around 8800m from the mean sea level while the deepest part of the ocean is 11000m deep from the mean sea level. This deep and thick water column
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Mantle subdivision : In the PREM seismic model, the boundary between the upper mantle and the lower mantle is accepted at a depth of 670km, where seismic velocities and density increases. This discontinuity is related to the transition of olivine from the ringwoodite phase into the mixture of perovskite and mangnesiowustite. In the Pyrolite model,
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Hypsometric curve shows the percentage of the Earth’s surface above any elevation. The horizontal axis, labeled “% of Earth’s surface,” gives the percentage while the vertical axis shows elevation above or below sea level. Hypsometry vs Bathymetry : Hypsometry is The measurement of land elevation (MSL) while Bathymetry is the measurement of underwater elevation. How to
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Ground Water development is a ratio of the available ground water extraction to the net annual ground-water availability. Classification :
Ground Water Development Zones Read More »
There are many types of Hydrograph based on the uses like Unit hydrograph Unit Hydrograph : The Unit Hydrograph (UH) is the simplest but at the same time a very powerful tool for hydrological analysis in general and flood forecasting. A unit hydrograph is a hydrograph of surface runoff that would result at a given
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The hydrograph is a way of representing the water level over time. A hydrograph plot may display stage, streamflow, and sometimes both. Hydrographs can be a helpful way to show water level observations and forecasts visually on a single graphic. The rate of flow is typically expressed in cubic meters per second. Hydrographs often relate changes
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Common minerals : Galena, Garnet, Fluorite, Magnetite Classes of the system Unit forms of Normal class : Form No. of faces Miller Indices Cube 6 100 Rhombdodecahedron 12 110 Dodecahedron 8 111 Tetrahexahedron 24 hko (210) Trisoctahedron 24 hhl (221) Trapezohedron 24 hll (211) Hexoctahedron 48 hkl (123)
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We describe the optical properties of the biaxial minerals in terms of three mutually perpendicular directions : X, Y and Z Therefore we can say that “α” has the lowest RI, “β” has the intermediate RI and “γ” has the highest RI, “γ” being highest must be vibrating perpendicular to the optic axis. Optic Plane
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