Category: Geology and Geography

How can organisms be preserved?

Freezing, drying and encasement, such as in tar or resin, can create whole-body fossils that preserve bodily tissues. These fossils represent the organisms as they were when living, but these types of fossils are very rare. Most organisms become fossils when they’re changed through various other means. What are 5 ways organisms can be preserved?

Where is erosion concentrated along a meandering stream?

Where do deposition and erosion of material occur along a meander? Deposition occurs on the inside of the meander, whereas erosion occurs on the outside. Where is erosion most dominant in a stream? 1. As suggested above, in response to a streams velocity, a river will tend to erode along the outside of a meander,

What does kettle lake mean?

What is the meaning of kettle lake? KETTLE LAKES. Kettles are depressions left behind after partially-buried ice blocks melt. Many are filled with water, and are then called “kettle lakes”. Most lakes in Michigan could be described as kettle lakes, and the term “kettle lake” describes the way the lake basin was formed. What is

What is Falting?

What does faulting mean? Definitions of faulting. (geology) a crack in the earth’s crust resulting from the displacement of one side with respect to the other. “he studied the faulting of the earth’s crust” synonyms: break, fault, fracture, geological fault, shift. examples: Denali Fault. What is faulting in earth science? A fault is a fracture

How do scientists detect P and S waves?

P waves can travel through liquid and solids and gases, while S waves only travel through solids. Scientists use this information to help them determine the structure of Earth. For example, if an earthquake occurs on one side of Earth, seismometers around the globe can measure the resulting S and P waves. How do scientists

Did they just have an earthquake in California?

When was the last earthquake in California? A magnitude 7.1 earthquake struck 10.5 miles north-northwest of Ridgecrest in the Mojave Desert on Friday, July 5, 2019, at 8:19 p.m., on the heels of a magnitude 6.4 earthquake that struck about 7.5 miles southwest of the Searles Valley in the Mojave Desert on Thursday, July 4,

What is debris flow landslide?

Debris flows are fast-moving landslides that are particularly dangerous to life and property because they move quickly, destroy objects in their paths, and often strike without warning. They occur in a wide variety of environments throughout the world, including all 50 states and U.S. Territories. What is debris flow? A debris flow is a moving

What is preliminary earthquake?

A foreshock is an earthquake that occurs before a larger seismic event (the mainshock) and is related to it in both time and space. The designation of an earthquake as foreshock, mainshock or aftershock is only possible after the full sequence of events has happened. What are the 4 types of earthquakes? There are four

How Richter scale is used to measure earthquakes?

The Richter scale measures the largest wiggle (amplitude) on the recording, but other magnitude scales measure different parts of the earthquake. The USGS currently reports earthquake magnitudes using the Moment Magnitude scale, though many other magnitudes are calculated for research and comparison purposes. How does the Richter scale measure an earthquake? The Richter scale measures

What was the strongest earthquake in 2018?

8.2 Rank Magnitude Location 1 8.2 Fiji 2 7.9 United States, Alaska 2 7.9 Fiji 4 7.5 Indonesia, Sulawesi How long did the 2018 earthquake last? The earthquake’s epicenter was near Point Mackenzie, about 10 miles (16 km) north of Anchorage, and occurred at a depth of 29 miles (47 km). It was followed six

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