Why is the continental crust thicker than oceanic crust?
GeologyAt convergent plate boundaries, where tectonic plates crash into each other, continental crust is thrust up in the process of orogeny, or mountain-building. For this reason, the thickest parts of continental crust are at the world’s tallest mountain ranges. Why oceanic crust is thinner compared to continental? The oceanic crust is thin, relatively young and
What is the definition of forensic Taphonomy?
GeologyForensic taphonomy has been defined simply as the study of what happens to a human body after death (5, 6). What is a forensic archaeologist? The forensic archaeologist combines knowledge of osteology and human remains with archaeological techniques to help recover finds and provide vital evidence for the investigative team. What is the best definition
What are the 7 properties of minerals?
GeologyMost minerals can be characterized and classified by their unique physical properties: hardness, luster, color, streak, specific gravity, cleavage, fracture, and tenacity. What are the 7 properties of rocks? What are the 7 characteristics of rocks? Properties that help geologists identify a mineral in a rock are: color, hardness, luster, crystal forms, density, and cleavage.
What is the definition of earthquake fault?
GeologyWhat is fault in earthquake? A fault is a fracture or zone of fractures between two blocks of rock. Faults allow the blocks to move relative to each other. This movement may occur rapidly, in the form of an earthquake – or may occur slowly, in the form of creep. What is an earthquake simple
Do stones move?
GeologyLocated on the border of California and Nevada, Death Valley National Park was designated in 1933, and is home to one of the world’s strangest phenomena: rocks that move along the desert ground with no gravitational cause. Known as “sailing stones,” the rocks vary in size from a few ounces to hundreds of pounds. Why
What can be caused by erosion?
GeologyThe effects of soil erosionsoil erosionSoil erosion is the displacement of the upper layer of soil; it is a form of soil degradation. This natural process is caused by the dynamic activity of erosive agents, that is, water, ice (glaciers), snow, air (wind), plants, and animals (including humans). What 3 are caused by erosion? The
What causes rocks to move?
GeologyThey discovered that the rocks were nudged into motion by melting panels of thin floating ice, driven by light winds, in winter. The sailing stones, or sliding stones, of Racetrack Playa have been observed and studied since the early 1900s. It was long thought that strong winds pushed the stones. How do rocks move? https://youtu.be/
Are stromatolites still alive?
GeologyLiving Stromatolites are no longer widely distributed. There are only two well-developed marine Stromatolite areas in the world: in the Bahamas and at Hamelin Pool in the Shark Bay area of Western Australia. Are stromatolites still living? Living stromatolites can still be found today, in limited and widely scattered locales, as if a few velociraptors
How was Mount Mazama formed?
GeologyMount Mazama was formed as a succession of overlapping cones and shields during a period of relatively continuous volcanic activity that lasted nearly half a million years, from about 420 to 40 ka. The first eruptions built Mount Scott, located just east of Crater Lake. How did Mount Mazama become Crater Lake? Mount Mazama grew
What is a polar quake?
GeologyAre ice quakes real? The Encyclopedia Brittanica reports frost quakes can sometimes be mistaken for true earthquakes because of how intense the seismic vibrations can get, and they’re more common in polar and mountainous regions where glaciers move. What are cold quakes? You may have experienced a frost quake, also known as a cryoseism. Frost