Giant hidden heat blob slowly travels beneath the U. S. An immense pocket of hot rock deep beneath the Appalachians may be a wandering relic of the breakup between Greenland and North America 80 million years ago. Researchers suggest this slow-moving “mant...

Subsurface rock beneath the Appalachians shows a mantle heat mass that formed during the Greenland and North America split ~80 Ma. It migrated ~1,800 km and now lies ~200 km under New England.
#Tectonics
#MantlePlume
⚒️🧪
Paper
pubs.geoscienceworld.org/gsa/geology/...

Phase transitions control plume layering during Earth’s secular cooling Earth’s structure and dynamics have evolved quite a lot since its formation, and so has mantle dynamics and convection patterns changed along with it. It turns out that phase transition in certain man...

🌍 Earth’s mantle flow has changed over time.
Mineral phase shifts can stall plumes and reshape convection.

Read more in today’s EGU Geodynamics blog by Ranpeng Li (GEOMAR, Kiel): blogs.egu.eu/divisions/gd...

#EGU #egugeodynamics #mantleplume

'Pulsing, like a heartbeat': Rhythmic mantle plume rising beneath Ethiopia is creating a new ocean Scientists have detected rhythmic pulses of molten rock rising beneath eastern Africa, threatening to pull the continent apart.

'Pulsing, like a heartbeat': Rhythmic mantle plume rising beneath Ethiopia is creating a new ocean #Science #EarthSciences #Geology #MantlePlume #NewOcean

Hawaiian volcanic rocks reveal Earth's core contains vast hidden gold reserves Earth's largest gold reserves are not kept inside Fort Knox, the United States Bullion Depository. In fact, they are hidden much deeper in the ground than one would expect. More than 99.999% of Earth'...

New research shows that volcanic rocks in Hawaii contain chemical signatures matching material from Earth’s core. This helps scientists trace how core material moves through the mantle to the surface
🧪⚒️🌋
#Geochemistry
#EarthScience
#MantlePlume
#Volcanology

Paper:
doi.org/10.1038/s415...

In this new critical address, Dr. Egon Cholakian presents a detailed analysis of critical geological events that occurred on November 24, 2023, in the Mariana Trench region, and their potential connection to the activity of the Siberian mantle plume.
#Siberia #Russia #mantleplume