• 9964432222
  • Mail Us
  • Appointment
  • Locate Us
  • Chat Now
  • Courses
  • Login
  • Register
Manifest IAS
JournalsOfIndia
Advertisement
  • Home
  • SNIPPETSfor Prelims
  • ARTICLESfor Mains
  • BROWSEBY SOURCE
  • DOWNLOADS
No Result
View All Result
  • Home
  • SNIPPETSfor Prelims
  • ARTICLESfor Mains
  • BROWSEBY SOURCE
  • DOWNLOADS
No Result
View All Result
JournalsOfIndia
No Result
View All Result
Home Geography

Greater Maldive Ridge(GMR)

February 19, 2022
in Geography
Reading Time: 3 mins read
0
Greater Maldive Ridge(GMR)
160
VIEWS
Share on WhatsAppShare on TelegramShare on Facebook
image_pdfMake PDF

In news– In a recent study, an Indian researcher traced the tectonic evolution and the nature of the Greater Maldive Ridge (GMR) , a very crucial geodynamic feature in the western Indian Ocean whose origin has been the centre of many scientific debates.

About the study-

  • The study was conducted by the Indian Institute of Geomagnetism, Mumbai, an autonomous institute of the Department of Science & Technology, Govt. of India.
  • The study has chalked the possible geological cross-sections along the GMR for the first time with the help of satellite-derived high-resolution gravity data. 
  • The researchers postulated that the GMR may be underlain by an oceanic crust.
  • The results from their study can provide additional constraints in understanding the plate-tectonic evolution of the Indian Ocean.
  • The study can help reconstruct the original Gondwanaland break up and dispersal that led to present-day configuration of continents, continental fragments, and formation of ocean basins in the Indian Ocean.
  • It provides the crustal architecture and the state of gravitational equilibrium between Earth’s crust and mantle (isostasy) of the Greater Maldive Ridge segment of the larger Chagos-Laccadive Ridge (CLR) system. 
  • The study, based mainly on the interpretation of gravity anomalies (small differences in the pull of gravity) with broadband seismic and refraction seismic data, provided for the first time a three-dimensional picture of the variation of Moho along the Greater Maldive Ridge and the adjoining ocean basins. 
  • IIG team found that Moho is deeper over the Maldive Ridge (MR) segment and shallows southwards in the Deep Sea Channel region (DSC). 
  • However, the effective elastic thickness (a proxy for the strength of the lithosphere) values were lower over the MR compared to the DSC region.
  • The research suggests that Maldive Ridge might have formed in the close vicinity of the Mid-Oceanic Ridge (where creation of a new ocean floor occurs due to divergent motion of lithospheric plates or spreading centre). 

About Maldive Ridge– 

  • It is an aseismic ridge that is not associated with earthquake activities. 
  • It is located in the western Indian Ocean, southwest of India, which is not well investigated. 
  • It is of paramount importance to gain knowledge on the structure and geodynamics of aseismic ridges (as it provides valuable inputs towards understanding the evolution of ocean basins).
  • It extends from the western shore of the Indian Peninsula to the Arabian-Indian (or Carlsberg) Ridge. 
  • The peaks of the Maldive Ridge rise above the water, forming coral islands (atolls)—the Laccadive Islands, Maldive Islands, and Chagos Archipelago.

What is Mohorovicic discontinuity (Moho)?

  • The Mohorovičić discontinuity, usually referred to as the Moho discontinuity or the Moho, is the boundary between the Earth’s crust and the mantle. 
  • It is defined by the distinct change in velocity of seismological waves as they pass through changing densities of rock.

 

image_pdfMake PDF
Source: PIB
Tags: PIBPrelims

Related Posts

Amalthea moon

Amalthea moon

May 16, 2022
Marsquake

Marsquake

May 12, 2022
Blood Moon total lunar eclipse

Blood Moon total lunar eclipse

May 10, 2022
Solomon Islands

Solomon Islands

May 9, 2022
Titan satellite

Titan satellite

May 9, 2022
Kwar hydroelectric project

Kwar hydroelectric project

April 29, 2022
Europa

Europa

April 23, 2022
Bernardinelli-Bernstein comet

Bernardinelli-Bernstein comet

April 18, 2022
‘Long Period Average’ (LPA)

‘Long Period Average’ (LPA)

April 18, 2022
Mullaperiyar Dam

Mullaperiyar Dam

April 14, 2022
Please login to join discussion
JournalsOfIndia

Our vision is to orient the readers to grasp the facts objectively and analyse critically. In the rush of reaching first to the readers, the websites miss the balanced opinion, which is the need of the hour. We aim to reach the readers with more crispness, preciseness and relevance. We bring the articles in UPSC way for the civil services aspirants and the Wisest Way for general readers.

Categories

  • Agriculture
  • Disaster Management
  • Economy
  • Environment
  • Ethics
  • Foreign Affairs
  • Geography
  • Governance
  • History
  • Law & Policy
  • Opinion
  • People in News
  • Places in News
  • Science & Tech
  • Security
  • Society
  • Sports
  • Uncategorized

Browse by Tag

AIR BBC Business Standard CNN Deccan Herald DownToEarth Down to Earth DTE Economic Times ET GS-1 GS-2 GS-3 GS-4 Hindustan Times IE India & the world Indian express India today Indiatoday Kurukshetra LiveMint Mains News News Paper Newspaper PIB PIB & The Hindu pre Prelims PRS India RSTV Science Reporter Survey The Hindu The Hindustan Times The India Express The Indian Express The New Indian Express Times of India TOI TOPPERS UNDP website Wikipedia Yojana

Newsletter

The most important UPSC news and events of the day.

Get Journals daily newsletter on your inbox.

© 2020 JournalsOfIndia - A free initiative by Manifest Team.

  • Login
  • Sign Up
  • Home
  • SNIPPETS
  • ARTICLES
  • BROWSE
  • DOWNLOADS
No Result
View All Result

© 2020 JournalsOfIndia - A free initiative by Manifest Team.

Welcome Back!

Login to your account below

Forgotten Password? Sign Up

Create New Account!

Fill the forms bellow to register

All fields are required. Log In

Retrieve your password

Please enter your username or email address to reset your password.

Log In