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Geophysics
The study of Earth using the combination of Geology and Physics, it lets us understand what is going on under the Earth's surface. Find questions on different types of seismic activities such as earthquakes and volcano eruptions here.
1,480 Questions
Plate movement is characterized by slow, gradual shifts along fault lines, which can accumulate significant stress over time without immediate release. Additionally, the complex interactions between tectonic plates, including variations in friction, material properties, and the geometry of faults, lead to unpredictable behavior. These factors create challenges for geologists in accurately forecasting when and where an earthquake might occur, as the buildup of stress does not consistently result in seismic activity. Consequently, short-term predictions remain highly uncertain.
Which kind of seismic wave-body or surface-tend to cause the most damage during an earthquake?
Surface waves tend to cause the most damage during an earthquake. These waves travel along the Earth's surface and typically have larger amplitudes and longer durations than body waves, leading to more intense shaking. Among surface waves, Love and Rayleigh waves are particularly destructive, as they can cause significant ground movement and structural damage. In contrast, body waves, while faster, generally cause less surface damage.
What is amount of fresh water on the earth in liters?
Approximately 2.5% of the Earth's total water is fresh water, which equates to about 35 million cubic kilometers. This translates to roughly 35 trillion liters of fresh water. However, most of this fresh water is trapped in glaciers and ice caps, with only a small fraction available as surface water or groundwater for human use.
What is the recently famous Person?
I must say the recently famous person is Hannah Montana/Miley Circus because it like
she has to halfs to her self Hannah Montana and Miley Circus.Some people love Hannah while others like miley and Evan others like Hannah and Miley She's a acter,singer,dancer and proformer and she is everywhere on Disney Channel Mtv and
Evan on E. People sure do love her some as a role model and some as just a normal
star.
What is the process in which continents move slowly?
Both continental plates and oceanic plates float on the top of the mantle. Convection currents in the mantle rock cause the top surface of the mantle to move in different directions in different places. The continental plates and oceanic plates floating on the top of the mantle are dragged along in the direction of motion of the top of the mantle directly beneath them.
This process is part of the theory of plate tectonics, which explains many other things beyond the apparent movement of the continents.
What discovery led scientists to accept Wegeners continental drift hypothesis?
One day while scientists were exploring the sea floor, they discovered sea-floor spreading, thus proving Wegener's hypothesis to be correct.
Did the volcanic eruption have periodically cooled the tropics?
Yes, many times, even within the last 450 years, there have been several such events.
It's widely believed that the eruption of a Super volcano, caused the entire Earth to Freeze, about 250 Million years ago, wiping out around 95% of all life on Earth. http://nz.news.yahoo.com/a/-/world/5227472
Which of these is not a common gas in magma?
Oxygen is not a common gas in magma. Magma is typically composed of gases such as water vapor, carbon dioxide, sulfur dioxide, and hydrogen sulfide.
Which is not a compositional classification of a magma?
Chemical classification is not a compositional classification of magma. Compositional classifications include mafic, intermediate, and felsic based on the silica content of the magma.
He is 36 born 1974 and one hack of a computer genius! Zimbabwean Born.
What extends from earth core to earth spheres?
The structure of the earth is several nested roughly spherical objects:
- solid core - nickel iron metal alloy (at center)
- liquid core - molten nickel iron alloy
- mantle - solid but slowly convecting basalt rock
- crust - solid granitic and sedimentary rock (at surface) also called lithosphere, meaning rock sphere
What are the types of soil in Rajasthan?
The soil type in Rajasthan varies with region. Central and northwestern Rajasthan has sandy soil, with a 3 to 9 percent clay scattered throughout. Black, well-drained soil is located in the southeast. South Central Rajasthan has a mixture of red clay and black soil.
How do Plates move where convection currents are rising-?
This tends to occur below a constructive / divergent plate boundary so the plates will move away from each other.
What is the layer of the earth that is composed of large plates that interlock and move over time?
The earth has tectonic plates are made up of Earth's crust and the upper part of the mantle layer underneath. The crust and upper mantle are called the lithosphere.
What are the three types of fold structures in the Earth?
There are broadly three main types of fold structure:
- Synclines
- Anticlines
- Monoclines
For more information on these structures please see the related link.
What continent moved slowest as a result of the continental drift?
Someone expects you to answer--Asia. But consider, perhaps Asia is the fastest moving and South America stayed still. It's all relative I suspect.
What is the magma composition of mount Akutan?
Mount Akutan, located in the Aleutian Islands of Alaska, has a magma composition that is typically andesitic to dacitic. This means that the magma is intermediate in composition, containing a mix of minerals such as plagioclase, pyroxene, and amphibole. The specific composition can vary depending on factors like depth and pressure.
Yes, they could not find a reason that would cause the movements of the continents. Now, scientists have discovered that the continents don't drift, but rather they are carried by tectonic plates.
