on September 29, 2022
How do I get the velocity of the P-wave or S-wave without using the travel time graph?
Earth ScienceAsked by: Albana Ying How do you find the velocity of P and S waves? The velocity of a P or S wave is a function of the physical properties of the rock the wave is traveling through.Velocity P wave = ((B + 1.3G)/Density)1/2, where: B = the bulk modulus – the resistance to change
on September 29, 2022
What is the most powerful natural catastrophic event on record?
Earth ScienceAsked by: Karen Handy Excessive rainfall over central China in July and August of 1931 triggered the most deadly natural disaster in world history — the Central China floods of 1931. What is the most powerful natural event? La Garita Caldera Eruption The most powerful eruption in the observable history of our planet the eruption
on September 29, 2022
Can we define “drainage density” for a soil column (point-scale)?
Earth ScienceAsked by: Karen Handy How is drainage density determined? Drainage density is a measurement of the sum of the channel lengths per unit area. It is generally expressed in terms of miles of channel per square mile. What is drainage density simple definition? The drainage density is the measure of the length of stream channel
on September 28, 2022
How to estimate the settling time of atmospheric particulates as a function of aerodynamic size?
Earth ScienceAsked by: Christina Cornwell What is the relationship between particle size and settling time? The settling velocity, and, as a result, settling time, are proportional to the diameter of the spherical particle squared. The larger the sphere diameter, the faster the particle will settle. The smaller the particle diameter, the longer it will stay suspended
on September 28, 2022
Interpreting a geological map
Earth ScienceAsked by: Christina Cornwell How is a geologic map interpreted? The purposes of a geologic map are to show the surface distributions of rock units, the locations of the interfaces or contacts between adjacent rock units, the locations of faults, and the orientations of various planar and linear elements. (Standard geologic symbols are shown in
on September 28, 2022
Is it ever possible for an continental plate to subduct under an oceanic plate?
Earth ScienceAsked by: Richard Agosta Is it possible for a continental plate to Subduct beneath an oceanic plate? Neither continental crustcontinental crustIn geology, the term sial refers to the composition of the upper layer of Earth’s crust, namely rocks rich in aluminium silicate minerals. It is sometimes equated with the continental crust because it is absent