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Dating Lava Flows on Mauna Loa Volcano, Hawaii

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Dating Lava Flows on Mauna Loa Volcano, Hawaii

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The scientist determines which lava flows are older by looking for a plane where the contact for that flow and the older one underneath it is very well defined. There is no way to test the lava itself for age sometimes remains of the plants in its path wee preserved as charcoal under the cool flow. The plant root was 2,050 years old. A couple hundred years old was the lava surrounding the plant. The lava remains that were found in the lava were cleaned and after two months are told how old they are. Arial photographs were put onto a map of Mauna Loa. The slopes have been completely resurfaced by the eruptions. The forest always comes back, old land is covered and new land is created.

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The eruption on the volcano continues to shoot poisonous steam and ash miles into the air. Mount St. Helens is now known as the blast or blowdown zone. There is no lava shown. When the ash is ejected by the volcano after it comes out if the top of the volcano it runs down and vanishes into the ground. The observations of the eruption help geologists understand volcanic eruptions because they get to see how volcanoes form and what comes out of the volcano in order to determine the volcanic eruption.

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The lavas from Kilauea and Mauna Loa each of their volcanoes have their own chemical pattern. Mike Garcia refers to basalt he is walking on as "the youngest real state on Earth"  because the volcano itself is always creating new rocks. Mike Garcia is freezing the hot lava that was there before  he took the sample. Lava temperature can get up to 2,120 degrees fahrenheit.

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Rain contains large amount of acid. This means acid rain causes volcanic eruption. Volcanoes affect Earths land, air, and water. They occur when magma comes near water or into contact with it. When a lava flows cools, it forms a layer of hard rock on which no plants can grow.

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This diagram is how a functional volcano works. A volcano has key features. Some of these features are the VENT which is where the lava comes from the ground to the surface. The CRATER is where the Lava erupts from in the volcano. This is the top of the volcano. The MAGMA CHAMBER is where the lava is held during inactivity. These are some of the key points to a volcanoes eruption and structure.

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Plutonic rock- formed when magma cools and solidifies underground

Volcanic rock- a rock formed from magma erupted from a volcano

The difference between the two major igneous rocks is they are both crystal size. Magma that cools underground forms solid rock.

Plutonic Rock

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There are no volcanoes in Connecticut. The most recent volcanic eruption was Mount Saint Helen. This volcanoe is located in Washington, U.S

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Hawaii and Mt. Rainer are similar in having a strong likelihood of eruptions and volcanic activity. Mount Rainier was formed through previous volcanic eruptions, and over time the mountain formed. What makes these special volcanoes is that they are not along the ring of fire. Hawaii and Mount Rainer are volcanoes that formed in the MIDDLE of a plate and not NEXT to a plate. There are other places that are similar to this, but these volcanoes size and amount make this a flaw in the ring of fires activity for volcanoes.

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The ring of fire is where most eruptions of volcanoes occur. Also there are earthquakes that are common here also. The reason for this is that there are lighter tectonic plates here, and are easily disturbed. This causes such frequent eruptions.

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A mountain or hill that has a vent. These vents erupt with lava from the top of the structure