
Modern Volcanism Linked to Events Deep Beneath Earth's Surface
Editorials News | Mar-09-2018
According to a recent work in Nature by Carnegie's Richard Carlson, Bradley Peters and Mary Horan along with James Day of the Scripps Institution of Oceanography, plumes of hot magma from the volcanic hotspot formed at the Réunion Island in the Indian Ocean rise from an unusual primitive source deep beneath the Earth's surface. This event of mantle differentiation preserved in these plumes has opened gates for research in early Earth geochemical process and also explains the odd seismic signatures created by dense deep mantle zones.
The research team is using the isotope data to show that the lava from the Réunion rises from the regions of the mantle that were isolated from broader, well-blended mantle. These isolated mantle regions were formed within 10% of the Earth's history. Overtime change in the number of neutrons in an isotope to gain stability is what helped scientists in understanding age and history of the isolated mantle pockets.
The ratio of these isotopes along with modeling studies and results of lab-based mimicry proves that Réunion plumes originated from a preserved pocket of the mantle despite millions of years of mantle mixing. Large-scale melting of the Earth's earliest mantle did change the composition of the mantle pocket. The findings can also help in understanding the origins of the dense regions at the boundary of core and mantle. These regions namely ultra low velocity zones and large low shear velocity provinces reflect an unusual slow speed of seismic waves.
By: Neha Maheshwari
Content: https://www.sciencedaily.com/releases/2018/02/180228131130.htm
Related News
-
Janmashtami Soon: Know 5 Lesser Known Facts Of It Here
-
Mental Health Awareness in India 2025: Initiatives and Support
-
How to Study for Exams with Limited Time?
-
Importance Of Newspaper
-
From Failure to Triumph: My NEET Journey of Hope and Perseverance
-
Indonesia On The Ring Of Fire
-
Surajkund Mela: A Celebration of Art and Culture
-
Impact of Climate Change on Goa's Coastline
-
Sustainable Fishing Practices in Goa
-
How Rising CO2 Levels Affect Plant Health and Productivity
Most popular news
- The Law Of Equivalent Exchange
- Essay On Issues And Challenges Of Rural Development In India
- Srinivasa Ramanujan And His Inventions
- The Youth Is The Hope Of Our Future!
- Poverty In India: Facts, Causes, Effects And Solutions
- Top 20 Outdoor Games In India
- Festivals Of India: Unity In Diversity
- Role Of Women In Society
- The Impact Of Peer Pressure On Students' Academic Performance
- Books As Companion
MUN Events

SDG Events
