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They are mostly found on, or very near, the surface. They have probably been quite deeply buried at some point ( a lot can happen in, say, 70 million years) but due to tectonic movements and erosion, they finish up where we can find them. If all the Jurassic rocks were buried at about 300m, then our knowledge of dinosaurs would be impressively small.
What else can I help you with?
Why are animal fossils more abundant from the Cambrian Period than from the earlier periods?
Because Paleozoic era rock is much older than Mesozoic era rock, these strata are generally at greater depth than Mesozoic rock, thus limiting their accessibility to areas that have been exposed by weathering and erosion.
What materials are found in the earth's crust?
The earth's crust is made up of several elements: Silica, Calcium, Oxygen, Iron, Sodium, Aluminium, Manganese and so on. These elements combine in some form or other to make salts like Silicon-oxide, Calcium carbonate, Iron-oxide for example which are known as minerals and several minerals combine to make rocks. The distribution of rocks and minerals across the different parts of the globe is different, and hence geologist study different rocks/lithologies across the globe. And also this distribution will changes with depth. The upper crust has different elemental composition with respect to the lower crust. For example, the upper crust has more of aluminum with respect to lower crust whereas the lower crust ahs more Magnesium with respect to upper crust.
What layer in the atmosphere has the lowest temperature?
The Mesosphere has the lowest temperature of the layers of Earth's atmosphere because Temperature decreases with height in the mesosphere. The mesopause, the temperature minimum that marks the top of the mesosphere, is the coldest place on Earth and has an average temperature around −100 °C (−148.0 °F; 173.1 K)
What are earths mechanical layers?
Lithosphere (apex)
What is the depth of a pond?
Ponds can be any depth, there is no regulation or even average.
How The depth of the earths crust compared to the rest of the earth is a comparable to the?
Skin of an apple
What is the depth range and the fraction in terms of both volume and mass of the earths crust?
108321*1012km3
The depth of the Earths crust compared to the rest of the Earth is comparable to the?
The depth of Earth's crust is significantly smaller compared to the rest of the Earth, like the thickness of an apple peel compared to the size of the whole apple. The Earth's crust is only about 1% of the Earth's total diameter.
What is the temperature o the Earths crust?
The temperature of Earth's crust varies widely depending on location. On average, the temperature of the crust increases by about 25 to 30 degrees Celsius per kilometer of depth. In general, at a depth of 30-40 kilometers, temperatures can reach 500-800 degrees Celsius.
How much depth below the earths surface is the crust?
The depth of the crust varies between 10 and 70 km in different areas, depending where you would measure it.
What sphere extends from earths core to earths crust?
The sphere that extends from Earth's core to Earth's crust is known as the mantle. It is a layer of solid rock that lies between the core and the crust, making up the majority of Earth's volume. The mantle is divided into the upper mantle and the lower mantle based on depth and composition.
What is the depths of the Earth's crust?
the depth of earth's crust
How does temperature change depth in earth crust?
The temperature increases with increasing depth within Earth's crust.
What is the temperature of the Earth27s crust in degrees Fahrenheit?
The temperature of the Earth's crust varies depending on location and depth. On average, the temperature increases by about 25-30 degrees Fahrenheit per kilometer of depth. At the surface, the average temperature is around 50-70 degrees Fahrenheit, but it can reach much higher temperatures at greater depths.
The maximum depth of the Atlantic ocean is 30246 ft This is 5049 ft deeper than the maximum depth of the Caribbean Sea What is the maximum depth of the Caribbean Sea?
The maximum depth of the Caribbean Sea is 25,197 feet.
What is the maximum depth of Lake Ontario?
the maximum depth of lake ontario is 244m or 803ft
Maximum depth of occeans?
The maximum depth of oceans is 10,923 meters/6,787 mi.
