OPTIMUM SEISMIC, Inc.’s Post

Recent research has uncovered two massive, ancient regions within Earth's mantle, challenging the traditional view of a well-mixed mantle. These "islands," located under Africa and the Pacific Ocean, are hotter and less mixed than previously thought, suggesting they are at least half a billion years old. Seismologists use oscillations from large earthquakes to study these regions, known as Large Low Seismic Velocity Provinces (LLSVPs). The findings indicate that these areas consist of larger mineral grains, contributing to their rigidity and resistance to mantle convection. This research enhances our understanding of Earth's geological processes and evolution.

Did you know there are inner-Earth mountains, known as large, low-velocity provinces, many times the size of Everest, sitting above our planet's core? Pembroke Fellow and Professor of Global Seismology in Earth Sciences Sanne Cottaar discusses her research, which uses seismic waves produced by earthquakes to identify what sits between the Earth's core and the mantle. https://lnkd.in/eBhCzEW8 #PembrokeCollegeCambridge #PembrokeResearch

There is a mysterious structure at the junction of the Earth’s outer core and mantle. Is the magma ocean a relic of the ancient ocean?

Scientists suspect that mysterious blobs deep inside the Earth, formed from a colossal collision with a Mars-like object billions of years ago, may have spurred the development of plate tectonics and ultimately played a role in the formation of life. A recent study published in Geophysical Research Letters delves into these hypotheses, linking the ancient collision to modern geological processes and offering insights into Earth's early history. https://lnkd.in/gbR4AEB7 #seismic #earthquake #texas #propertymanager

🌍 Unveiling Ancient Innovation: The Han Dynasty Seismograph 🌍 🔬 I’m thrilled to present my latest blog post that dives into the remarkable engineering feat of the Han Dynasty seismograph! This ancient device, invented over 2,000 years ago, offers a glimpse into the advanced scientific understanding and ingenuity of ancient China. In this detailed blog, you'll discover: 📜 The history and invention of the Han Dynasty seismograph ⚙️ How this early seismograph functioned and its significance in detecting earthquakes 🏛️ The legacy and impact of this invention on modern seismology and engineering Whether you're fascinated by ancient technologies, interested in early scientific instruments, or curious about how historical innovations influence contemporary science, this blog has something for you! 🔗 [Read the full blog here] https://lnkd.in/eNGPrNhE I’d love to hear your thoughts and insights on this ancient marvel. Feel free to share your comments! #HanDynasty #Seismograph #AncientEngineering #ScientificHistory #Innovation #Technology #EarthquakeDetection

Check out this insightful piece shedding light on the evolving landscape of seismology and the role of geometry in forecasting earthquakes. #Seismology #Science #Earthquakes https://lnkd.in/ekTJQWEW

Scientists discover 'sunken worlds' hidden deep within Earth's mantle that shouldn't be there News By Harry Baker published January 14, 2025 A new way of measuring structures deep inside Earth has highlighted numerous previously unknown blobs within our planet's mantle. These anomalies are surprisingly similar to sunken chunks of Earth's crust but appear in seemingly impossible places. For decades, scientists have been building up a better picture of Earth's interior by using seismographs — 3D images created by measuring how seismic waves from earthquakes reverberate deep within our planet. This method has helped scientists identify ancient sections of the planet's crust, known as subducted slabs, that have been pulled into the mantle through subduction zones where tectonic plates meet. For example, in October 2024, researchers announced the discovery of a section of seafloor that had sunk deep into the mantle below Easter Island. In a study published Nov. 4, 2024, in the journal Scientific Reports, researchers revealed that they had discovered "numerous" potential subducted slabs throughout Earth's mantle, using a new type of seismographic imaging. (Little information about the size, shape and exact locations of the blobs has been revealed so far.) I need scientist who know where the earths crust is sinking and I need them to take me there so I can use the black stuff you all see to fill in those holes before its too late. I must be there to see it with my own eyes. I can circle it in a helicopter but I must be there.

In 1912, Alfred Wegener dared to challenge the very bedrock of geological belief with a glance at a map. Imagine his audacity: suggesting that continents might not have always been in their current places. He noticed something intriguing—Africa seemed to snugly fit into South America, like pieces of an ancient puzzle. And Antarctica? Well, it fit snugly too, nestled into this prehistoric jigsaw. But it wasn't just about the fit. Wegener delved deeper, uncovering fossils that spanned continents, linking ecosystems long separated by vast oceans. Yet, despite his compelling evidence, the scientific community scoffed. They scoffed hard. His theory of continental drift was dismissed as wild conjecture, akin to chasing after alchemy or the mythical phlogiston. For decades, Wegener's ideas were relegated to the fringes of scientific thought. Even into my high school years, continental drift was whispered about like a cautionary tale of academic hubris. Yet, science has a curious way of vindicating those who dare to question. In the 1950s and 60s, geomagnetic surveys lent compelling support to Wegener's heretical notion. The Earth's crust was indeed in motion, driven by unseen forces deep within its mantle. Plate tectonics emerged as the grand unifying theory, shrouding Wegener's modest "continental drift" in a cloak of respectability. Sadly, Wegener didn't live to witness his redemption. He passed away in 1930, his revolutionary ideas only fully embraced decades later. Today, plated tectonics stands as a cornerstone of geophysics, a testament to the daring vision of a man once dismissed as a geological dreamer.