on March 29, 2022
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/
on March 29, 2022
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
on March 29, 2022
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
on March 29, 2022
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
on March 29, 2022
What is a rift valley kid definition?
Geology: an elongated valley formed by the depression of a block of the earth’s crust between two faults or groups of faults of approximately parallel orientation. What is a rift valley simple definition? A rift valley is a lowland region that forms where Earth’s tectonic plates move apart, or rift. Rift valleys are found both
on March 29, 2022
What tectonic plate is Greenland on?
Geologythe North American tectonic plateNorth American tectonic plate. For tens of millions of years, the plate’s movement pushed Greenland over the hotspot. What tectonic plate is Iceland? Iceland sits on the Eurasian and North American tectonic plates. It is the only place in the world where you can see those two tectonic plates and the
on March 29, 2022
Who proposed the principle of lateral continuity?
GeologyNiels Stensenlaw of lateral continuity This was the third of the principles of Niels Stensen (alias Nicolaus or Nicolas Steno) (Dott and Batten, 1976). He established three principles still accepted today. The first was the principle of superposition, the crucial discovery that old rock layers underlie new rock layers. What does principle of lateral continuity?
on March 29, 2022
Why is Lassen Volcanic a national park?
GeologyBecause of the eruptive activity, which continued through 1917, and the area’s stark volcanic beauty, Lassen Peak, Cinder Cone and the area surrounding were declared a National Park on August 9, 1916. Why is Lassen Volcanic a national park a national park? Lassen Volcanic became a national park in 1916 because of its significance as
on March 29, 2022
What is mineral and example?
GeologyA mineral is an element or chemical compound that is normally crystalline and that has been formed as a result of geological processes. Examples include quartz, feldspar minerals, calcite, sulfur and the clay minerals such as kaolinite and smectite. What is the 5 examples of minerals? Examples of minerals are feldspar, quartz, mica, halite, calcite,
on March 29, 2022
What factor determines the competence of a stream?
Geologywhat factor determines the competence of a stream? the competence of a stream is determined by the size of the particle that the stream can carry and move, and then is explained by the diameter of the biggest particles that are able to be moved. What determines stream competence? Stream capacity is the maximum amount