What is Moho depth?
The Moho is the boundary between the crust and the mantle in the earth. This is a depth where seismic waves change velocity and there is also a change in chemical composition. Also termed the Mohorovicic' discontinuity after the Croatian seismologist Andrija Mohorovicic' (1857-1936) who discovered it.
What does the Moho tell us?
The Moho is widely believed to be the boundary between Earth's crust and an underlying layer of denser rocks in Earth's interior called the mantle. It is named after Croatian seismologist Andrija Mohorovicic, who first detected it in 1909 by examining seismic waves moving through the Earth.
How do we know where the Moho is?
The Moho is very identifiable using seismic data. Seismic waves are produced by energy released by earthquakes and other disturbances. Seismic waves are not unique to earth, Mars has seismic waves also that travel through the planet, as does our natural satellite, the Moon.
What is the Moho quizlet?
Moho. (n.) the dividing line between the Earth's mantle and crust.
What is the Moho made of?
The Moho or Mohorovicic Discontinuity is a boundary that separates the crust from the upper mantle. The crustal rock above and the mantle rock below are different rocks based on silicate minerals.
In what parts of the planet is the Moho deepest?
Moho or Mohorovičić discontinuity boundary between the Earth's crust and its mantle. The Moho lies at a depth of about 22 mi (35 km) below continents and about 4.5 mi (7 km) beneath the oceanic crust.
What causes the Moho?
The Moho discontinuity occurs at an average of about 8 km below the ocean basins and 30 kilometres below the Earth surface. The cause of moho is considered to be the change in rock composition from the rock containing feldspar (above) to the rock that contains no feldspar ( below).
Is MOHO a open system?
MOHO considers human beings to be an open system consisting of volitional, habituation, and performance capacity and considers how these three aspects interact with each other and the environment. You may want to explore systems theory because MOHO is based on it ( Bertalanffly).
What is the MOHO select all that apply?
What is the MOHO? ( Select all that apply) – The boundary between the crust in the mantle.
Is the Moho solid or liquid?
The "Moho", as it is often called for brevity, is the boundary between the crust and the mantle. While the mantle has liquid further down, it's solid at the top just like the crust — but with a different mineral composition.
What is the depth of the core mantle boundary?
The largest compositional discontinuity within the Earth is the core-mantle boundary (CMB), at a depth of 2889 km. This boundary and the adjacent transition zones in the lowermost mantle and outermost core play a critical role in the Earth's thermal and chemical evolution.
How is MOHO used?
The Model of Human Occupation (or MOHO) is a very important occupation-based framework and is woven into the fabric of occupational therapy. It utilizes a top-down holistic approach to looking at the individual, their meaningful activities or occupations, and relationship with their environment.
What are dimensions of doing MOHO?
These are volition, habituation and performance capacity and are concepts that have been associated with MOHO since its origins. Additionally, human occupation is conceptualized as having three dimensions. These are participation, performance and skill.
Why does Moho affect the velocity of the seismic waves?
Mohorovicic realized that the velocity of a seismic wave is related to the density of the material that it is moving through. He interpreted the acceleration of seismic waves observed within Earth's outer shell as a compositional change within the Earth.
What is the importance of Mohorovicic discontinuity?
The Mohorovicic discontinuity is important because it marks the boundary between the mantle of liquid magma and the hardened magma that forms the curst.
What causes Moho?
The Moho discontinuity occurs at an average of about 8 km below the ocean basins and 30 kilometres below the Earth surface. The cause of moho is considered to be the change in rock composition from the rock containing feldspar (above) to the rock that contains no feldspar ( below).
What is the depth of core?
The core is found about 2,900 kilometers (1,802 miles) below Earth's surface, and has a radius of about 3,485 kilometers (2,165 miles).
What is the layer between mantle and core?
Asthenosphere: highly viscous, mechanically weak and ductile part of mantle. Gutenberg Discontinuity: lies between the mantle and the outer core.
Why was MOHO created?
MOHO was initiated with the specific goal of developing resources to guide and enhance occupation-focused practice. Practitioners have collaborated in the development of a wide range of tools for partnerships. Academic/practice partnerships were built around how the tools developed.
Who made the MOHO?
The MOHO was originally developed by Kielhofner and Burke (1980) out of the occupational behaviour tradition. Over time, the MOHO has undergone at least two major elaborations and revisions (Kielhofner, 1985; 1995).
How do you use MOHO?
The MOHO in occupational therapy is used widely as a framework for looking at the individual and their activities, occupations and how these relate to their environment. An occupational therapist may ask questions about an individual's lifestyle and environment to ascertain the motivations behind occupational choices.
What is the depth of each layer of Earth?
Crust – 5 to 70 km thick. Mantle – 2,900 km thick. Outer Core – 2,200 km thick. Inner Core – 1,230 to 1,530 km thick.
What are the depths of the layers of Earth?
Mechanical Layers
| Layer | Depth |
|---|---|
| Lithosphere | 0-100 km |
| Asthenosphere | 100-350 km Soft plastic *note: The mantle is not liquid! |
| Mesosphere | 350-2900km stiff plastic |
| Outer Core | 5100-6370 km solid |
What is the depth of the core-mantle boundary?
The largest compositional discontinuity within the Earth is the core-mantle boundary (CMB), at a depth of 2889 km. This boundary and the adjacent transition zones in the lowermost mantle and outermost core play a critical role in the Earth's thermal and chemical evolution.
What is the depth of inner core?
Earth's core is the very hot, very dense center of our planet. The ball-shaped core lies beneath the cool, brittle crust and the mostly-solid mantle. The core is found about 2,900 kilometers (1,802 miles) below Earth's surface, and has a radius of about 3,485 kilometers (2,165 miles).
What is the deepest layer of the Earth called?
the inner core Starting at the center, Earth is composed of four distinct layers. They are, from deepest to shallowest, the inner core, the outer core, the mantle and the crust.
What are the depths of each layer of the Earth?
The layers of Earth are:
- Crust – 5 to 70 km thick.
- Mantle – 2,900 km thick.
- Outer Core – 2,200 km thick.
- Inner Core – 1,230 to 1,530 km thick.
Aug 26, 2019
What is the depth of Earth?
To really understand Earth, you need to travel 6,400 kilometers (3,977 miles) beneath our feet. Starting at the center, Earth is composed of four distinct layers. They are, from deepest to shallowest, the inner core, the outer core, the mantle and the crust.
What is the thickest layer of the Earth *?
The core is the thickest layer of the Earth, and the crust is relatively thin, compared to the other layers.
What is the depths of the Earth?
Definitions
| Depth (km) | Chemical layer | Depth (km) |
|---|---|---|
| 670–2,890 | Lower mantle | 670–2,890 |
| 2,890–5,150 | Outer core | 2,890–5,150 |
| 5,150–6,370 | Inner core | 5,150–6,370 |
| * Depth varies locally between 5 and 200 km. † Depth varies locally between 5 and 70 km. |