PODCAST

Geo-News Radio

12174863533

A voice-only podcast about geology and earth sciences in general.

science earth sciences

All Episodes

8:31

Ancient Martian Water Revealed in Earthly Meteorite

Geo-News Radio ·

2024/11/30

Analysis of a Martian zircon crystal from the meteorite NWA 7034 reveals evidence of hot, water-rich hydrothermal activity on early Mars, approximately 4.45 billion years ago. Scientists used advanced microscopy techniques to identify growth zones within the zircon, showcasing alternating bands of elements indicative of hydrothermal processes. These findings suggest a dynamic early Martian environment potentially conducive to life, mirroring similar systems on Earth. The study's implications ...

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7:03

Geomathematical Innovations with Ricardo Valls

Geo-News Radio ·

2024/11/17

Geomathematical models have transformed the field of geology, merging mathematics with geological data to predict subsurface phenomena with remarkable precision. These models, which have evolved from basic statistical methods to sophisticated computational tools, play a critical role in resource management, exploration, and environmental risk assessment. By simulating complex geological processes, they enable geoscientists to uncover hidden mineral deposits, optimize resource extraction, and

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9:59

Critical Minerals, COP 29, and Global Green Innovations

Geo-News Radio ·

2024/11/16

Geologists are vital to the global transition to net-zero carbon emissions due to their role in sourcing critical minerals required for renewable energy technologies such as wind turbines, solar panels, and electric vehicles. These technologies depend on metals like lithium, cobalt, nickel, copper, and rare earth elements such as neodymium. However, these critical minerals face risks of supply chain disruption and resource scarcity as demand rises globally. For example, electric vehicles requ...

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4:36

Unveiling Ancient Solar Events Through Radiocarbon...

Geo-News Radio ·

2024/11/15

Ancient Scots Pines preserved in the Drouzet Riverbanks of the Southern French Alps have unveiled fascinating secrets about Earth's past. By analyzing the radiocarbon signatures in these subfossil trees, scientists discovered an abrupt radiocarbon spike 14,300 years ago and a century-long anomaly around 14,000–13,900 years ago. These findings, corroborated with beryllium-10 data from Greenland ice cores, suggest links to significant solar events, including a solar energetic particle event and...

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9:58

Marine Mineral Formations in the Arctic Ocean...

Geo-News Radio ·

2024/11/14

A new study published in Geochemistry, Geophysics, Geosystems details the discovery of hydrothermal iron- and manganese-oxide deposits in the Amerasia Basin of the Arctic Ocean. These deposits formed millions of years ago through frictional heating caused by tectonic faulting, a process previously unknown in the Arctic. The minerals formed in the recent geologic past, between 8 and 4 million years ago, which is surprising as hydrothermal activity was not previously known to occur in this region

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10:34

LAND OF EXTREMES: Valley of Discovery: Geology in the...

Geo-News Radio ·

2024/11/11

The sources highlight the rich geological history and cultural significance of the Imperial Valley, specifically focusing on the remnants of ancient Lake Cahuilla, the Kumeyaay people’s connection to the land, and their use of geological resources to craft tools and other items. The text also advertises an upcoming community event, "Ocotillo Rocks!," which will celebrate the geology and unique features of the Imperial Valley.P. Geo. Ricardo A Valls, M. Sc. Valls Geoconsultant ORCID ID- https:...

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12:30

Geology & Mine Planning Software Market SWOT Analysis...

Geo-News Radio ·

2024/11/05

This press release from AMA Research & Media LLP highlights the Geology & Mine Planning Software market, noting its competitive landscape and key players such as Deswik, Bentley, and Datamine. It discusses the software market's rapid development and growing reliance on cost-effective and efficient platforms. The press release also analyzes various factors influencing the market, including growth opportunities and challenges, such as the need for skilled professionals and the rise of d...

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7:57

Porphyry copper alterations and the spectral behavior...

Geo-News Radio ·

2024/11/04

This study uses ASTER satellite imagery to investigate porphyry copper alterations and the spectral behaviour of associated minerals in the Zafarghand district of Isfahan, Iran. The authors conducted a detailed geological analysis of the region, identifying five alteration zones, which are often associated with copper mineralization. Several image processing techniques were applied to the ASTER data to enhance the detectability of these alteration zones, with methods such as band ratio, ...

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12:56

An alternative to the igneous crust fluid + sediment...

Geo-News Radio ·

2024/11/04

This study presents a critique of the long-held paradigm in arc geochemistry that attributes the trace element composition of arc lavas to two distinct components: an aqueous fluid derived from the subducting igneous ocean crust and a sediment melt. The authors argue that this paradigm is inconsistent with mass balance considerations and experimental data, proposing instead that a single slab component, consisting of melts of sediment and ocean crust, along with variable mantle wedge composit...

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18:57

Ochre communities of practice in Stone Age Eswatini

Geo-News Radio ·

2024/11/03

This research paper examines the use of ochre (earth mineral pigments) in Stone Age Eswatini. It investigates the communities of practice that developed around ochre use, including the selection, mining, transport, and processing of these pigments. Using various analytical techniques, the authors were able to determine the provenance of ochre artifacts from fifteen archaeological sites, revealing regional patterns and localized variations. The study also provides new optically stimulated lumi...

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12:12

Editorial: Gas Geochemistry: New Progresses and...

Geo-News Radio ·

2024/11/02

This editorial introduces a special collection of research papers on gas geochemistry, a field that studies the composition and sources of gases in the Earth's environment. The papers explore a wide range of topics, including the characterization of hydrocarbons, the use of gas geochemistry in tectonic and seismic research, and the development of new technologies for analyzing gas data. The editorial emphasizes the importance of collaboration between geochemists and geophysicists to address p...

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15:29

A two-step clustering method for mineral...

Geo-News Radio ·

2024/11/01

This research paper examines the use of a two-step clustering method for mineral prospectivity mapping, specifically focusing on the potential for gold deposits in the Jiaolai Basin of China. The authors use factor analysis to reduce the dimensionality of geochemical data and then combine this with categorical variables like fault distribution and residual gravity anomalies for clustering analysis. The study finds that the quantity of categorical variables and the number of categories within ...

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30:34

Discrimination of geochemical anomalies using the C-N...

Geo-News Radio ·

2024/10/13

The study focuses on identifying and separating geochemical anomalies associated with copper mineralization in the Sonajil Cu-porphyry deposit, located in Heris, NW Iran. Using the Concentration-Number (C-N) fractal method combined with remote sensing techniques such as ASTER satellite imaging, researchers delineated various geochemical populations and explored the dominant hydrothermal alterations in the area. The research found that argillic, phyllic, and propylitic alterations played a

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9:28

The Olivine Mystery: How Asteroid Vesta Rewrote...

Geo-News Radio ·

2024/10/12

Explore the groundbreaking discoveries made by NASA's Dawn mission as it unravels the mysteries of asteroid Vesta, a unique protoplanet that offers a window into the early solar system. This video delves into the surprising findings about Vesta's geology and mineralogy, including the unexpected distribution of olivine-rich material and the complex structure revealed through advanced 3D spectral analysis techniques. Learn how Vesta's connection to HED meteorites provides crucial

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8:27

Scientists Unveil The Origin Of Giant Amethyst Geodes

Geo-News Radio ·

2024/10/10

A team of researchers has uncovered the secret behind the formation of giant amethyst geodes found in Uruguay. By conducting extensive geological surveys and analyzing the chemical composition of the geodes, the researchers discovered that the geodes formed at unexpectedly low temperatures, ranging from 15 to 60 degrees Celsius, due to a steady flow of groundwater. This groundwater, rich in iron and silicon, seeped through the lava flows, depositing layers of amethyst crystals in cavities near the

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6:30

Reconstruction of the Dynamics of a Catastrophic...

Geo-News Radio ·

2024/10/10

A study published in the journal Water Resources Research details the catastrophic eruption of the Changbaishan-Tianchi volcano in 946 CE. The eruption, which released a significant amount of magma, caused a massive flood from the volcano's summit lake. Researchers examined the layered deposits from the volcano to investigate the flood, concluding that it occurred in two phases, with the flood occurring between the two eruptive phases. The scientists also found evidence that the flood resulted

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8:09

Is Earth's Oldest Continental Crust Disintegrating?...

Geo-News Radio ·

2024/10/09

Recent studies have revealed alarming evidence that Earth's oldest continental crust, dating back billions of years, is slowly disintegrating. This crust, which forms the foundation of the planet's continents, has withstood geological changes for billions of years. However, researchers have found that it is now breaking apart, potentially altering our understanding of continental stability and geological processes. The disintegration is linked to various geological forces, including tectonic ...

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7:11

How did these microbes survivediinside a rock for 2...

Geo-News Radio ·

2024/10/08

You can see the full video here- https://youtu.be/slblPi41DhIScientists have discovered a community of microbes living in a 2-billion-year-old rock sample extracted from the Bushveld Igneous Complex in South Africa. These microbes have been isolated for a remarkable period, far exceeding the previous record of 100 million years, and have evolved at a slower rate than microbes in more populated environments. The discovery suggests the possibility of similar underground microbial communities existing

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9:48

Discovery of a hidden subduction zone in the Pacific:...

Geo-News Radio ·

2024/10/07

Scientists have discovered a hidden subduction zone beneath the Pacific Ocean, providing new insights into the Earth's interior. Using seismic imaging techniques, the team was able to identify an ancient piece of seafloor that sank into the Earth's mantle approximately 250 million years ago. This discovery challenges existing theories about the Earth's structure and reveals that the material in the Earth's mantle moves much more slowly than previously thought. The findings

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9:04

A one-two combo to Earth... The Nadir Crater

Geo-News Radio ·

2024/10/06

This text describes the recent discovery of the Nadir Crater, a large impact crater located on the Atlantic Ocean floor. The crater was formed by a significant asteroid impact that occurred around 66 million years ago, coinciding with the Cretaceous-Paleogene extinction event, also known as the time when the dinosaurs died out. While the Chicxulub impact is generally considered the primary cause of this mass extinction, the Nadir impact may have played a crucial role in intensifying the

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