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All India M.Sc. Geology Entrance Guide

All India M.Sc. Geology Entrance Guide

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AIMGEG is an initiative where we pledge to provide the missing link between IIT-JAM aspirants and IITs.

With a guidance like never before, we will prepare you to break open the doors to your dream destination.

10/04/2022

Hello and Welcome to for and ! We are excited to start the new batch and continue extending our help and guidance to break open the gates of your dream destinations!

Please fill in all the details and enrol yourself for the webinar on 23rd April (for NET Aspirants) and 24th April (for JAM aspirants) using this link: https://forms.gle/5h2ywP9P7CwgYbTYA

In this webinar, we will be discussing our class and exam schedule and course structure for JAM 2023 and NET 2022/23. Please join the meeting to get acquainted with our strategy behind the year-long preparation for these exams.

You will be added to a WhatsApp group in the third week of April in order to discuss updates regarding the Webinar and address your queries if any.

Looking forward to meeting you all!

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24/03/2022

Congratulations to everyone who made it! It was a very difficult year for all of us with changing COVID-19 policies and hybrid mode of education. The journey can be overwhelming at times and we want to congratulate you for focusing on your goal amidst the noise.
If you could not meet your own expectations, remember that the journey has just began. We have faith in you and believe that you will shine in all your endeavors. Be patient and believe in yourself.
You will always find us by your side!
Cheers!

Density layering and stratification in the ocean 28/01/2022

This is a simple laboratory demonstration showing what happens to the flow of water that has an intermediate density, between a lower density upper layer of water and a higher density deeper layer of water.

Video Courtesy: OceanClimateAtUoL

Density layering and stratification in the ocean This is a simple laboratory demonstration showing what happens to the flow of water that has an intermediate density, between a lower density upper layer of ...

01/01/2022

Warm wishes on New Year to all the aspiring geologists from All India M.Sc. Geology Entrance Guide. May you all work harder to achieve your goals and find success in everything you do. May the upcoming year be full of high energies and greater focus for you to work harder and make your dreams a reality.

JAM 2022 is just round the corner. AIMGEG wishes all IIT JAM aspirants good luck for their upcoming endeavour. We are always with you, let us all move towards a more cohesive and interlocked community where we can discuss Geology to our heart's content.

HAPPY NEW YEAR 2022.

26/12/2021

Hypothetical porosity-depth curves.
The curves illustrate:
(1) A normal porosity-depth relationship for fine-grained sediments with marine pore waters;
(2) Cementation in the meteoric zone (horizontal segments) alternating with burial in marine pore waters;
(3) Reversal of normal-porosity depth trend owing to dissolution in the deep subsurface, followed by resumption of normal burial; and (4) Arrested porosity reduction owing to abnormally high pore pressure.

22/12/2021

Ready for JAM 2022?

AIMGEG brings to you Mock Test Series for JAM 2022.
8 tests, intricately drafted questions, spread over the month of January, exactly in JAM pattern, that will give you a real-time experience of JAM and help you identify your strengths and weaknesses.
A golden opportunity for all the aspiring students to test your abilities and rectify your mistakes before the final exam!
To join us, please fill the required information here:
https://forms.gle/SuR7EsjtoQ8rkBAY9
Contact us for more information.
(Note: This is not for our current batch of students)

15/09/2021

Scenarios of relative sea-level rise.
(Size of arrows indicate the magnitude of a particular phenomenon)

10/09/2021

Textural maturity classification of sandstone by Folk. This is one of the most fundamental diagrams in sedimentology. Here textural maturity of sands is shown as a function of input of kinetic energy.


05/09/2021

The Hjulström curve, is a graph used mainly by hydrologists, sedimentologists and geomorphologists to determine whether a river will erode, transport, or deposit sediment. And if it is happening then at what condition it will happen. The graph takes sediment particle size and water velocity into account. The upper curve shows the critical erosion velocity in cm/s as a function of particle size in mm, while the lower curve shows the deposition velocity as a function of particle size. Note that the axes are logarithmic.

23/08/2021

As Earth rotates, it wobbles slightly upon its axis, like a slightly off-centre spinning toy top. This wobble is due to tidal forces caused by the gravitational influences of the Sun and Moon that cause Earth to bulge at the equator, affecting its rotation. The trend in the direction of this wobble relative to the fixed positions of stars is known as axial precession. The cycle of axial precession spans about 25,771.5 years.

Axial precession makes seasonal contrasts more extreme in one hemisphere and less extreme in the other. Currently, perihelion occurs during winter in the Northern Hemisphere and in summer in the Southern Hemisphere. This makes Southern Hemisphere summers hotter and moderates Northern Hemisphere seasonal variations. But in about 13,000 years, axial precession will cause these conditions to flip, with the Northern Hemisphere seeing more extremes in solar radiation and the Southern Hemisphere experiencing more moderate seasonal variations.

Axial precession also gradually changes the timing of the seasons, causing them to begin earlier over time, and gradually changes which star Earth’s axis points to at the North Pole (the North Star). Today Earth’s North Stars are Polaris and Polaris Australis, but a couple of thousand years ago, they were Kochab and Pherkad.

Source: NASA

23/08/2021

The angle Earth’s axis of rotation is tilted as it travels around the Sun is known as obliquity. Obliquity is why Earth has seasons. Over the last million years, it has varied between 22.1 and 24.5 degrees perpendicular to Earth’s orbital plane. The greater Earth’s axial tilt angle, the more extreme our seasons are, as each hemisphere receives more solar radiation during its summer, when the hemisphere is tilted toward the Sun, and less during winter when it is tilted away. Larger tilt angles favour periods of deglaciation (the melting and retreat of glaciers and ice sheets). These effects aren’t uniform globally – higher latitudes receive a larger change in total solar radiation than areas closer to the equator.

Earth’s axis is currently tilted 23.4 degrees or about halfway between its extremes, and this angle is very slowly decreasing in a cycle that spans about 41,000 years. As obliquity decreases, it gradually helps make our seasons milder, resulting in increasingly warmer winters, and cooler summers that gradually, over time, allow snow and ice at high latitudes to build up into large ice sheets. As ice cover increases, it reflects more of the Sun’s energy back into space, promoting even further cooling.

Source: NASA

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