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There are no known kimberlite or lamproite volcanic pipes in California. There are many serpentinite bodies present, but these are generally not volcanic pipes and are not of deep seated origin.
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What type of ultramafic rock sometimes contains diamond?
Kimberlites are the rock type that diamonds are usually found in. They are formed when a magma from deep in the mantle drills its way to the surface in a fast gaseous explosive event. Diamonds typically occur as xenocrysts within the Kimberlite matrix. the volcanic deposits are called Lamproite igneous volcanic pipes. Please see the related links.
Why are diamonds found in kimberlite rock?
Apparently kimberlite pipes -- that can contain diamonds -- are volcanic formations that begin deep within the earth's mantle. Because diamonds and kimberlite -- and other semi-precious gems -- are formed in similar locations, some kimberlite rock contains diamonds. You can read more, below.
Describe an event that must occur in order for diamonds to reach earth's surface?
From Susan Ward Aber, in her paper, "Everything You Ever Wanted to Know About Diamonds": "Diamond may be up to 3 billion years old, which is much older than their surface host rock. Diamond crystallization originates some 200 kilometers, or 320 miles, beneath the surface and the disaggregated crystals are merely transported to the surface via kimberlite and lamproite [volcanic] pipes. These igneous host rock formations are roughly cylindrical in shape and act as a conduit from the Earth's mantle to the contintental crust." In order for the [volcanic] pipe to exist, "...Volcanic pipes form as the result of violent eruptions of deep-origin volcanoes." Read more about volcanic pipes, below.
Do all volcanoes have kimberlite?
No, not all volcanoes have kimberlite. Kimberlite is a type of volcanic rock that often contains diamonds, but it is only found in specific geological settings. Other types of volcanoes can be composed of different types of magma and erupt different types of rocks.
How do kimberlite carry diamonds?
Kimberlite magma originates in the Earth's mantle and can transport diamonds to the surface during explosive volcanic eruptions. These eruptions are fast and violent, creating an environment where diamonds can retain their structure and resist degradation during their journey to the surface within the kimberlite magma.
Which layer of earth forms diamonds?
The vast majority of diamonds form within the Earth's lithospheric mantle at depths of around 150 to 190 km. Volcanic activity brings them to the surface in the form of volcanic pipes known as kimberlite or lamproite pipes.
What diamonds are in volcanoes?
Diamonds found in volcanoes are typically formed deep within the Earth's mantle under high pressure and temperature conditions. They are brought to the surface during volcanic eruptions through volcanic pipes called kimberlite pipes or lamproite pipes. These diamonds are known as "kimberlite diamonds" or "volcanic diamonds".
What are the types of soil has diamonds?
Diamonds are commonly found in kimberlite and lamproite soils, which are types of volcanic rocks. These rocks are formed deep within the Earth's mantle and can bring diamonds to the surface through volcanic eruptions. Diamond-rich soils are typically found in specific regions known as diamond-bearing provinces, such as parts of Africa, Australia, and Canada.
Which engine use to detect diamond on the Earth?
Diamonds are found on earth by geologists who look for indicator minerals, including kimberlite and lamproite, which with diamonds, are all forced to the earth's surface in volcanic pipes. You can read more about indicator minerals, below.
What rock starts with the letter k?
· Kimberlite - a volcanic rock · Kenyte - a volcanic rock found on Mount Kenya
What rocks have diamonds inside of them?
Diamonds are found in kimberlite and lamproite rocks, which are formed deep within the Earth's mantle and brought to the surface through volcanic activity. These rocks can sometimes contain diamonds as inclusions or as separate crystals.
Is the origin of diamonds rock or coal?
The origin of diamonds is rock, specifically kimberlite and lamproite volcanic rocks that form deep within the Earth's mantle. Coal is a completely different type of sedimentary rock formed from plant material.
What are the occurrences of a diamond?
Diamonds are formed deep within the Earth's mantle under high pressure and temperature conditions. They are brought to the Earth's surface through volcanic eruptions in rock formations known as kimberlite or lamproite pipes. Diamonds can also be found in alluvial deposits, where they have been eroded from these primary sources and carried by rivers and streams.
What type of ultramafic rock sometimes contains diamond?
Kimberlites are the rock type that diamonds are usually found in. They are formed when a magma from deep in the mantle drills its way to the surface in a fast gaseous explosive event. Diamonds typically occur as xenocrysts within the Kimberlite matrix. the volcanic deposits are called Lamproite igneous volcanic pipes. Please see the related links.
Why are diamonds found in kimberlite rock?
Apparently kimberlite pipes -- that can contain diamonds -- are volcanic formations that begin deep within the earth's mantle. Because diamonds and kimberlite -- and other semi-precious gems -- are formed in similar locations, some kimberlite rock contains diamonds. You can read more, below.
What is a rock that starts with a k?
Kimberlite is a volcanic rock. Kenyte is a volcanic rock found on Mount Kenya.
How do people peridot from eaths crust?
Peridot is formed deep in the Earth's mantle under high pressure and temperature conditions. It is brought to the surface through volcanic activity, specifically through the eruption of kimberlite and lamproite pipes. Miners then extract peridot from these volcanic rock formations.
