2006年7月27日 · What Is a Rockfall? Rockfalls are a natural and dynamic geologic process involving the detachment and rapid downard movement of rock. Due to its steep, glacier-carved cliffs, Yosemite Valley experiences many rockfalls each year.

A rockfall is a type of fast-moving landslide that happens when rock or earth falls, bounces, or rolls from a cliff or down a very steep slope. Rockfalls start from high outcrops of hard, erosion-resistant rock that become unstable for a variety of reasons.

2009年4月11日 · Rockfall is a natural mass-wasting process that involves the dislodging and rapid downslope movement of individual rocks and rock masses. The widespread combination of steep slopes capped by well-jointed bedrock makes rockfall among …

2017年10月2日 · Stock is discovering new insights into rockfall—not just where, and how often, the cliffs dump debris, but what triggers it. He’s inching closer to answering the surprisingly elusive question: “Why do rocks fall?”

ROCKFALL definition: 1. a mass of stones that is falling or has already fallen: 2. a mass of stones that is falling or…. Learn more.

2024年2月23日 · Climate warming has driven increased rockfall from an unstable mountain slope in the Swiss Alps, according to a record of rockfall activity spanning the past century based on tree damage.

earthflow, sheet or stream of soil and rock material saturated with water and flowing downslope under the pull of gravity; it represents the intermediate stage between creep and mudflow.

2024年1月9日 · Rockfall can block roads and trails, especially those that are carved into and near canyon walls. When that happens, park geologists and maintenance workers consider how to conserve landscapes, plants, and animals as part of the process to safely and efficiently repair damaged infrastructure.

2022年4月14日 · A rockfall is a type of fast-moving landslide that happens when rock or earth falls, bounces, or rolls from a cliff or down a very steep slope. Rockfalls start from high outcrops of hard, erosion-resistant rock that become unstable for a variety of reasons.

1 天前 · SPRINGDALE, Utah – Around 3:19 p.m. on February 24, Zion National Park received multiple reports of a rockfall along the Zion Canyon Scenic Drive between the Great White Throne pull out and the Big Bend Shuttle Stop. Park rangers immediately responded, and traffic was temporarily stopped in both directions around the rockfall impact area. ...