Articles tagged with Mountain Ranges
Researchers found that the sediment surge after the Wenchuan Earthquake led to a significant increase in bedload flux, accounting for 65% of the overall sediment flowing through the river. The elevated flux persisted for at least ten years, with no evidence of declining back to background levels.
Researchers found that thick ice cover suppressed volcanic eruptions, but as glacial ice melts, pressure builds and magma is released, leading to more frequent and explosive eruptions. This phenomenon could occur worldwide, including Antarctica, and may have global climate impacts, including long-term warming.
A team of researchers found that mountain ranges with deep mantle rocks near the surface are ideal for large-scale natural hydrogen generation and accumulation. This process, called serpentinization, can produce up to 20 times more hydrogen than in rift environments, providing a promising alternative to synthetic hydrogen production.
Farmers in African mountains report alarming changes in local weather patterns, leading to reduced crop yields and food insecurity. The study highlights the need for tailored adaptation strategies that consider environmental, social, and political dynamics of each region.
Farmers in African mountains reported increased temperatures, reduced fog, and changes in rainfall patterns, leading to lower crop yields, livestock production, and human health concerns.
A research team from the University of Göttingen investigated the influence of the Zagros Mountains on Earth's surface bending. They found that the Neotethys oceanic plate is breaking off horizontally, creating a depression in the region.
A recent Colorado State University study demonstrates that climate change can affect earthquake frequency, as glaciers recede and slip along faults increases. This suggests that earthquake activity could increase as glaciers melt, impacting hazard assessment and seismology.
Researchers from The University of Texas at Arlington are conducting a DNA analysis project to determine the genetic differences between the rare Dixon's whiptail and the common checkered whiptail. If the two species are found to be distinct, Dixon's whiptail may become eligible for endangered species protection.
A new study finds that a nearby eroding river gorge is causing Mount Everest's peak to rise by 15-50 meters over the past 89,000 years. The research suggests that the loss of landmass due to erosion is causing the mountain to spring upwards by as much as 2 millimeters a year.
Researchers found that the presence of Oecophylla ants at base of mountains drives insect-eating bird diversity to mid-elevations. At lower elevations, bird groups competing with ants reduce in diversity.
The SUPERSLUG initiative aims to forecast the impact of sediment slugs on river catchments and communities. The project will use a range of sensors and numerical models to provide comprehensive predictions of where and how long-term effects might be felt, up to decades or centuries after an event.
Researchers at the University of Texas at Austin propose a new step in the tectonic process that raises seafloors into mountains, involving oceanic crust influencing magma chamber formation. This discovery has implications for understanding back arc basins and their role in regulating the planet's climate.
A new study finds that mountains can switch from being a sink of carbon dioxide to a source as their erosion rate increases. The optimal erosion rate for maximizing carbon dioxide removal through mineral weathering is approximately 0.1 millimeter per year.
Researchers used paleoaltimetry technique to reveal early mountain range uplift in Southern Tibetan Plateau. The study found that the region had achieved an elevation of approximately 3.5 kilometers by 63 to 61 million years ago, challenging established notions of Tibetan Plateau formation.
A team of researchers from Stanford University found that the foundations of the Gangdese Arc were already much higher than anticipated, long before any tectonic collision occurred. This challenges existing theories about past climate and biodiversity in the Himalayan region.
Climate change is shifting snowfall to rainfall on mountains across the Northern Hemisphere, increasing the risk of floods, landslides, and soil erosion. The study found that for every 1 degree Celsius increase in global temperature, high elevations can expect an average of 15% more rain.
Researchers found that two-thirds of European bird species shifted northeastward by an average of 100km over the past 30 years, with coastal communities facing extinction. Mountain ranges also controlled bird migrations, preventing some species from adapting to changing temperatures.
A new study from the University of Colorado Boulder documents more than 60 years of change in snowpack water storage across Western North America. The researchers found that snowpack water storage has significantly declined in over 25% of the Mountain West, leading to earlier water scarcity and impacts on agriculture and wildfire risk.
Researchers warn that climate change will lead to the loss of habitats for invertebrates in the European Alps, with many species forced to seek refuge in colder areas. The study predicts that by the end of the century, most species will have experienced consistent losses of habitat.
Researchers used a novel method to study tectonic plate movement, finding two significant slowdowns in the South American plate over the past 15 million years. These events may have contributed to the widening of the Andes mountain range by causing unstable material to tear free and sink into the mantle.
An international team, led by Eric Sandvol from the University of Missouri, aims to better understand the makeup of the earthquake zone and surrounding areas. The team plans to deploy 250 seismometers around the East Anatolian fault to study energy waves produced by earthquakes.
Researchers from Xi'an Jiaotong-Liverpool University identify vital differences between the plants, including pollinators and lifespan, confirming their classification. The study highlights the importance of recognizing every species for conservation programs.
Vegetation in North America's mountains is shifting to higher elevations at an unprecedented rate, driven by climate change. This shift is occurring faster than many animal species can adapt, with widespread changes observed across diverse ecosystems.
A new study reveals that alien plant species are expanding their range to higher elevations at an accelerated rate, affecting mountain ecosystems globally. The number of invasive species has increased by 16% worldwide over the past decade, with neophytes colonizing niches that match their climatic preferences.
Researchers warn of impending 35-60 year droughts in western US unless greenhouse gas emissions are curbed to limit warming to 2.5 degrees Celsius. Mountain snowpack is shrinking due to global warming, threatening agriculture, ecosystem support, and urban water supplies.
Researchers from UC Berkeley used rock analysis to determine that the valley's impressive depth was formed since 10 million years ago, with most of it carved in the past 5 million years. The study employed a novel technique called helium-4/helium-3 thermochronometry to reconstruct the temperature history of the rocks.
Scientists at Hokkaido University have quantified glacier mass loss on Kamchatka Peninsula, revealing a total ice loss of 4.9 billion tons between 2000 and 2016. Rising temperatures are driving this change, which contributes to global sea level rise.
Researchers found a persistent 20% reduction in carbon dioxide seeping up from the ground during the spring of 2017, coinciding with intense drought and record-high Sierra Nevada snowpack. The study suggests that changes in Earth's hydrology due to climate change can impact volcanic emissions.
Detailed supercomputer simulations show that the North American monsoon occurs when Mexico's Sierra Madre Occidental mountains divert the eastward-trending jet stream toward the equator, cooling moist tropical air until it condenses and falls as rain. This new understanding will impact forecasts in the region.
A recent study found that earthquakes and extreme rainfall lead to a significant increase in landslide rates in Nepal during the monsoon season. The research, published in Nature Communications, reveals that landscape damage caused by the April 2015 Gorkha earthquake increased landslide risk by six times.
The Sierra Nevada mountain range in California has a complex history, with two distinct periods of formation. The ancient range was formed around 100 million years ago as a volcanic chain, but was later dwarfed by a vast plateau. Volcanic activity around 40 million to 20 million years ago lifted the Earth's surface, forming new mountai...
Researchers find that mountain height is determined by the balance of forces in the Earth's crust, rather than erosion. This new understanding opens up opportunities to study the long-term development and growth of mountains.
A new study finds that mountain-dwelling species may move to higher elevations to escape human pressure, which could reduce their extinction risk. The research suggests that these high-elevation areas tend to have more intact land for species due to reduced human activity.
A study found records of 23 trace metals in an ice core from the Dasuopu glacier, accumulating since 1499 and peaking during winter and spring. The onset of human impact on the Himalayas is unclear due to limited ice core records, but evidence suggests anthropogenic activity may have started around 1780.
KU Leuven researchers have developed a method to measure snow depth using satellites, enabling the study of inaccessible areas like the Himalayas. The findings reveal significant snow volumes in European and North American mountain ranges.
Scientists from the Polish Academy of Sciences analyzed mountain ranges worldwide and found a universal similarity in their structure. The analysis showed that the distribution of ridges and valleys follows a power-law nature, with most nodes having low degree and few hubs having high degree.
The Chang'e 4 spacecraft landed safely in the Von Kármán crater, a 186-kilometer-diameter impact basin. The LRO's spectacular view reveals the massive mountain range and the lander itself is barely visible due to its distance from the camera.
Researchers have reconstructed ancient lost plates under the Andes mountains, offering a glimpse of the Earth's surface millions of years ago. The study reveals that the formation of the mountain range was more complex than previously thought, with evidence of volcanic activity and plate tectonics.
The world's permafrost soils have warmed by an average of 0.3 degrees Celsius between 2007 and 2016, according to a new global study. This warming poses significant threats to infrastructure and the environment, including increased carbon dioxide and methane emissions.
Researchers analyzed over 40,000 protected areas worldwide to determine areas needing further protection. The analysis found that nearly half of mountain ranges lacked stringent PAs and failed to meet biodiversity conservation goals.
Scientists at Ohio State University have revised the estimate of snow volume for North America, finding that snow accumulation in a typical year is 50% higher than previously thought. The total snow accumulation is around 1,200 cubic miles, with most of it occurring atop the Canadian Rockies and other mountain ranges.
Scientists tracked ruddy shelducks crossing the Himalayas using satellite data, finding they fly above 5,000 metres and reach 6,800 metres altitude. This challenge likely requires adaptations to cope with lower oxygen levels, surpassing even bar-headed geese' records.
Temperatures in the Central Pyrenees have risen by 2.5 °C over the past three decades, with a significant increase since 1970. Spring and summer temperatures have been particularly affected, with hot years doubling and cold years decreasing by half.
Researchers from the University of Granada have reconstructed the Gibraltar Arc's movement 9 million years ago, revealing clockwise and counterclockwise rotations of large land blocks. The study reconciles contradictory data on the region's tectonic history.
A team of ASU researchers has found that major earthquakes can actually down-drop mountains while uplifting the surrounding foothills, challenging conventional wisdom on the mechanisms of mountain building. This new understanding may help anticipate seismic hazards in advance of devastating earthquakes.
Researchers have discovered a magnetic signal in volcanic rocks from the Iberian Peninsula that suggests a massive rotation of almost 60º occurred 300 million years ago. This process, known as the Cantabrian orocline, helped shape the region's mountain ranges and curvature.
Researchers discovered that ancient Puebloans used trees from the Zuni and Chuska Mountains to build massive structures in Chaco Canyon. The switch to Chuska Mountain trees coincides with significant cultural developments in Chacoan culture, including changes in masonry style and construction volume.
Research led by University of Cincinnati geologist Eva Enkelmann shows a strong relationship between global and local climate change and mountain range tectonic plate shifts. The study found that climate-driven erosion can influence tectonics, changing the motion of rocks in affected areas.
A new hypothesis suggests that large bolides pierced early thin lithosphere, causing massive partial melting and forming cratonic crust. This process is thought to have occurred on a Venus-like Earth, which preserved a more complete geological record of its infancy.
Researchers examine the Loa River system and its impact on water scarcity, highlighting the need for sustainable long-term management. The study identifies areas where deeply buried aquifers exchange water with shallow ones or discharge to surface water systems.
A new study reveals that most mountain ranges increase in land area at higher elevations, contradicting the long-held assumption that they decrease. This finding could lead to more precise conservation strategies for mountain animal species threatened by climate change.
A team of researchers analyzed a significant cold snap in March 2011, which led to unexpected intense snowfalls. By examining the episode, scientists improved short-term predictions and developed a better understanding of how to predict similar events in the future.
A team of researchers has discovered an ancient, deep canyon in South Tibet, which rules out a popular model explaining the formation of Himalayan gorges. The canyon is thousands of feet deep and was carved by a river that once flowed into the Tibetan Plateau.
Scientists have discovered evidence for a massive mountain range that thrived 600 million years ago, supporting an explosion of life on Earth. The Himalayan-scale range was eroded intensely, releasing nutrients into the oceans that allowed life to flourish.
Groundwater pumping in California's Central Valley depletes the aquifer, raising the Sierra Nevada and Coast Mountain Ranges by a few millimeters each year, creating stress on faults that could increase earthquake risk. Scientists report their results in Nature, finding cumulative rise over 150 years of up to 15 centimeters.
Scientists have found evidence that the Andes mountain range formed through periodic rapid pulses, not continuous gradual uplift. The Altiplano plateau rose by about 2.5 kilometers between 16 million and 9 million years ago, indicating a rapid rate in geologic terms.
Researchers at Queen Mary University of London have discovered that the amount of snow needed to trigger an avalanche in the Himalayas can be up to four times smaller than in the Alps. This finding has significant implications for mitigating natural hazards and safeguarding people on mountain villages, roads, and ski resorts.
Researchers discovered that geologic cycles, including mountain formation and chemical weathering, play a crucial role in balancing atmospheric CO2 levels. This balance helps prevent the planet from becoming too hot or too cold, allowing life to thrive.
Research suggests women tend to view sexually explicit ads negatively, except when paired with high-value products like luxury watches. Women's attitudes soften towards such ads due to the connotation of exclusivity and rarity associated with premium pricing.
A new study reveals that interactions between landslides and erosion, caused by rivers, explains why some mountain ranges exceed their expected lifespan. The study found that large landslides can overwhelm river transport capacity, while landslides also deliver abrasive agents to streams, accelerating erosion.