Articles tagged with Rocks
Professor Phil Gans predicts that volcanic eruptions in Costa Rica are 'inevitable' and could lead to devastating pyroclastic flows. He studied volcanic rocks and found evidence of subduction-related volcanism dating back 24 million years, with major eruptions occurring every few thousand years.
University of Alberta researchers are working on a project to remotely scan and analyze core samples, allowing geologists to determine the type and quality of rock without physically inspecting them. This technology has the potential to improve mine safety, accuracy, and production by reducing the need for human intervention.
Jenny LaGesse is studying ancient North Carolina coastlines by analyzing cores and outcrops to understand rock types, stacking patterns, and changes over time. Her research aims to produce models with worldwide applications in environments similar to the Paleogene of North Carolina.
Recent claims of fossil life on Earth over 3.8 billion years ago are called into question by researchers from The George Washington University and the Swedish Museum of Natural History. A new study suggests that carbon in ancient rocks may have formed non-biotically, rather than through biological processes.
A University of Toronto geochemist has found evidence of abiogenic gases in underground mines, matching hydrocarbons formed from non-life-based reactions. The discovery raises the possibility that life on Earth could be sustained by these gases, challenging previous assumptions about the origins of complex life.
A study by McMillan and Larson found that rock climbing decreases vegetation diversity on cliffs, with only 4% as many vascular plant species on climbed faces. The researchers also discovered that climbing increases the proportion of non-native plants, which can outcompete native species for resources.
Researchers have made significant discoveries about the San Andreas Fault using a new technique for seismic imaging. The study has provided valuable information on the properties of rocks near the surface and the deep fault line, shedding light on the potential risks and opportunities associated with drilling through the fault.
A geologist proposes that traditional Chinese landscape paintings, emphasizing harmony with nature, may have contributed to China's lack of early adoption of geological principles. This perspective is rooted in the Western European emphasis on geometric perspective as a tool for understanding spatial relationships.
The USGS is studying the Chesapeake Bay Impact Structure to understand its influence on groundwater. Scientists are examining the composition, age, and structure of crystalline basement rocks to learn more about the impact event's effects.
Researchers at UMass have created a new electron microprobe technique that can date specific parts of rocks with greater precision. This method will provide valuable insights into the movement of tectonic plates and the evolution of rocks over time.
Researchers found evidence of liquid water on Earth 4.4 billion years ago, contradicting previous views on the planet's formation. The discovery suggests an early Earth with conditions that could support life, raising questions about the moon's formation and potential for life.
Researchers propose a new understanding of granite formation, suggesting it occurs in rapid, dynamic events that take between 1,000 and 100,000 years. This challenges the long-held view of slow, multi-million year processes, and has significant implications for our understanding of crust formation and economic ore deposits.
Cornell University has been selected by NASA to lead the science team for the next Mars mission, which will include a large roving vehicle carrying six scientific instruments. The rover's Pancam panoramic camera system will reveal terrain around the vehicle and help select rock targets for study.
Researchers have found a previously unknown oxygen-isotope signature in sulfate minerals on Earth, altering the understanding of the anomaly's origin. The discovery provides a new window into the Earth's ancient atmosphere and its cycling processes.
Researchers from OSU discovered that some Hawaiian sea mounts were influenced by the existence of a mid-ocean ridge subducted under present-day Siberia. The findings provide more evidence on how volcanic hot spots interact with tectonic plates.
Researchers re-create chemical signatures thought to be produced only by living organisms in a laboratory setting. The team's findings suggest that simple chemical processes can account for the proportions previously believed to indicate past life, and may have implications for searching for life on Mars or other celestial bodies.
The Isle Royale wolf population has rebounded after years of decline, with five new pups added to the total count. The Middle Pack now controls most of the island's area, increasing access to moose for food. Meanwhile, the East Pack maintains control over the eastern end of the island.
The Carnegie Mellon University's Nomad robot successfully completed its mission to find meteorites in Antarctica, classifying seven specimens as meteorites. The robot achieved this feat autonomously and without prior knowledge of the samples, marking a significant milestone in robotics and scientific inquiry.
A robot named Nomad has been deployed to a site in Antarctica to search for meteorites and classify them using scientific instruments. The expedition marks the first time a robot will be used to discover extraterrestrial material that has fallen to Earth.
Researchers have discovered two distinct rock types at the base of the mantle, which are moving laterally and interacting with the liquid iron outer core. This finding has significant implications for plate tectonics and our understanding of the Earth's geological history.
Research suggests that older people's tolerance for rock music is lower due to physiological changes, such as presbycusis, which affects hearing. Additionally, emotional factors play a role in auditory perception, with older adults potentially being more irritated by rock music due to unfamiliarity.
Researchers found that senior citizens rated rock music much higher on a loudness scale than younger people. As people age, their tolerance for loudness decreases due to common hearing loss conditions like presbycusis, which distorts certain sounds and makes low frequencies more noticeable.
Scientists at Oregon State University have found evidence of rock-eating microbes living nearly a mile beneath the ocean floor, which could suggest similar life on Mars or other planets. The discovery suggests that conditions similar to those on Mars exist beneath the ocean floor and could support life.
Recent USGS research reveals little difference in ground motions on Mississippi River bluffs vs nearby floodplain. This suggests areas underlain by rock may experience less shaking than those with alluvium, such as valleys.
Researchers have found evidence of molten rock two thousand miles beneath the Earth's surface, challenging scientists' understanding of mantle convection. The discovery was made using seismic waves measured in Norway and detected a slurry of molten rock across a 300-by-600-mile region deep beneath Tonga.
Researchers discover the San Andreas fault cuts straight through the crust and Moho, affecting stress buildup and earthquake hazard predictions. The study improves understanding of rock boundaries, types, and stress accumulation to better assess seismic risks.
A study of 250 Ohio University students found that men are more likely to play rock music at high volumes, even if they don't like the genre. The researchers suggest that external pressures, such as peer influence, may be a contributing factor.
The Hayward Fault's southern end has moved at double the rate of its northern portion, causing rocks to be 'piled up' on one side and stretched on the other. This increased strain suggests a magnitude 6 earthquake could occur in the near future.
Geologists have discovered that the Ontong Java Plateau, a 40km-thick oceanic feature, formed from eruptions over just three million years, defying current geologic theories. The rocks' unique geochemical characteristics suggest they were created in high-pressure environments, with pressures potentially exceeding eight kilobars.
Researchers have made a groundbreaking discovery about the structure of the Earth's mantle beneath Tibet, finding that it is not horizontal but oriented in three dimensions. This new understanding could improve models of plate tectonics and provide insights into the evolution of continents.
A team of scientists has assembled evidence on rocks and rock formations deep beneath the surface to locate an ancient strike-slip fault. If successful, this will provide opportunities to study geological processes in the lower crust during strike-slip faulting.
Researchers have developed a new technique to predict earthquake magnitude based on rock structure, providing more accurate assessments of seismic risk. By analyzing data from 37,000 earthquakes in southern California, the team created 3D images of subsurface rock formations that reveal varying maximum depths along and across faults.