The slope of the sea floor greatly influences how quickly the sea floor affects the waves as the waves get closer to shore, and therefore how the waves break. A critical wave steepness occurs where the wavelength is 7 times the height of the wave and after that wave becomes unstable and breaks. There are […]
OCEAN WAVE BREAKERS Read More »
In adjusting to change in discharge and erodibility of it’s bed, a stream modifies it’s channel so that irregularities are minimized and the least energy is expended in the movement in of water and sediments along its course. Frequently this involves enlargement of the channel cross section by erosion or reductions of it’s dimensions through
CONCEPT OF GRADE AND GRADED STREAMS Read More »
Click here to know more about till deposits
CHARACTERISTICS OF TILL DEPOSITS Read More »
The unstratified, unsorted debris dropped more or less randomly by the glaciers is called till. Tills can be of two types – It is laid down subglacially when debris is released directly from the sole of the ice. This involves pressure melting of basal so that debris in it is released and then lodges or
There are various forces that act upon the plates to make them move. Three possible mechanism of plate motion – Convectional Currents :- Slab Pull :- Slab pull is thought to operate at subduction zones where the subducting oceanic plate becomes colder and denser than the surrounding mantle (gabbro metamorphosed into eclogite) and pulls the
CAUSES OF PLATE MOTION Read More »
Here are few important features of the Indian constitution which are borrowed from other countries – Sources Features Government of India Act 1935 Federal Scheme, Office of Governor, Judiciary, Public Service CommissionEmergency Provisions and administrative details British Constitution Parliamentary government, Rule of law, Single Citizenship, Cabinet System US Constitution Fundamental rights, Independence of judiciary, Judicial
Important sources of Indian Constitution Read More »
There are 22 parts in the Indian Constitution. It can be asked that which part of constitution contains what and whet articles are in them – Parts Subjects Articles 1 The Union and its territory 1-4 2 Citizenship 5-11 3 Fundamental Rights 12-35 4 Directive Principles of State Policy 36-51 4 A Fundamental Duties 51A
PARTS OF INDIAN CONSTITUTION Read More »
Climate change refers to the ling term shifts in temperatures and weather patterns. Such shifts can be natural, due to changes in the sun’s activity or large volcanic eruptions. But in recent years (1800 onwards) human activities have been the main driver of climate change due to burning of fossil fuels like coal, oil and
Climate change and Feedback Mechanism Read More »
Ichno-fossils are an expression of the alteration of the depositional fabric in sedimentary rocks by living organisms. Often these expressions are part of animal behavior or traces hence called “trace fossils”. Common structures are burrows, boring, trails and tracks. Trace fossils can be common in un-fossiliferous rocks, that can extend the geologists capability to interpret
A metamorphic facies series is a sequence of facies that occurs across a metamorphic terrane due to differences in pressure and temperature (P/T) conditions. Each facies series is characterized by the development of a particular sequence of individual facies, with each facies stable at a specific range of temperature and pressure conditions High P/T series
Metamorphic facies series Read More »
