Posted on April 17, 2022 (Updated on July 9, 2025)
How old are the Hawaiian islands geologically?
Regional SpecificsThe islands of Oahu and Kauai have greater ages, with the latter being about five million years old. To the northwest, the volcanoes are progressively older, with Suiko Seamount in the northern part of the chain having an age of 65 million years. When was Hawaii formed geologically? The hotspot, which geologists estimate began producing
Posted on April 17, 2022 (Updated on July 9, 2025)
How does sandstone turn into granite?
Regional SpecificsHow does granite change into sandstone? Igneous rock granite formed beneath the surface millions of years ago. Then, the forces of mountain guilding slowly pushed the granite upward, forming a mountain. … Slowly, the sediments were pressed together and cemented to form sandstone, a sedimentary rock. What does sandstone turn into? With a great deal
Posted on April 17, 2022 (Updated on July 9, 2025)
What are the differences between the three types of seismic waves?
Regional SpecificsBody waves travel through the interior of the Earth. Surface waves travel across the surface. Surface waves decay more slowly with distance than body waves which travel in three dimensions. Particle motion of surface waves is larger than that of body waves, so surface waves tend to cause more damage. What is the difference between
Posted on April 17, 2022 (Updated on July 9, 2025)
How is schist formed?
Regional SpecificsSchist typically forms during regional metamorphism accompanying the process of mountain building (orogeny) and usually reflects a medium grade of metamorphism. Schist can form from many different kinds of rocks, including sedimentary rocks such as mudstones and igneous rocks such as tuffs. What is schist and how is it formed? Schist is medium grade metamorphic
Posted on April 17, 2022 (Updated on July 9, 2025)
What are the different types of mass movements and how are they described?
Regional SpecificsMass Movement Types Types Descriptions Flows occur when soil or rock acts like a liquid Slumps a slice of material that moves as one piece along a curved surface Landslides made up of unconsolidated rock; includes rockslides and avalanches Creeps material that moves slowly down gently sloping areas What are the different types of mass
Posted on April 17, 2022 (Updated on July 9, 2025)
How does water cause weathering of rocks?
Regional SpecificsWater, in either liquid or solid form, is often a key agent of mechanical weathering. For instance, liquid water can seep into cracks and crevices in rock. If temperatures drop low enough, the water will freeze. When water freezes, it expands. How does water cause weathering and erosion? Water gets into cracks and joints in