A Basalt Forms Under Which of the Following Conditions

Pahoehoe basalt forms when lava has low viscosity flows easily like water or flow is smooth. The basalt melts expands and becomes less dense.

Types Of Volcanic Rocks Lava And Deposits Lucky Sci Volcanic Rock Igneous Rock Basalt Rock

B a felsic magma cooling in the subsurface.

. A felsic magma cooling on Earths surface. A mafic magma cooling in the subsurface. If a basalt body cuts across a fault what are the relative ages of the basalt and the fault.

On the other hand basalt flows block the main stream channel resulting in a surface depression in which sedimentation of silt clay or volcanic ash provides an impervious layer. The basalt cools expands and becomes less dense. Basalt forms when magma cools very quickly.

Its a lot like a cut on your arm which will bleed until a scab forms. E none of the above. Consult the figure below.

Tap again to see term. The blueschist facies form under which of these conditions. Aphanitic phaneritic and porphyritic are textural terms that.

Basalt is a dark heavy lava that is very hot and fluid when it erupts. A basalt would form under conditions that included A. The basalt must be older according to the principle of original horizontality D.

Basalt is primarily formed by the extrusion of lava flows onto the surface of the earth during a volcanic eruption. A felsic magma cooling in the subsurface. Basalt is a type of igneous rock that is typically dark in coloration with a fine-grained texture.

Pillow basalt forms when lava erupts under water and cools almost instantly. It is usually fine-grained due to rapid cooling of lava on the Earths surface. The fault must be older according to the principle of cross-cutting relationships C.

When this magma solidified in the interior part of the earth it forms intrusive igneous rocks. Basalt is an example of extrusive igneous rocks. ˈ b æ s ɔː l t-əl t.

Rapid-cooling fine-grained basalt is. Often basalt- low silica makes lava runny. The basalt cools contracts and becomes more dense.

A basalt would form under conditions that included. Basalt is an igneous rock that forms from the cooling and crystallization of magma. Compared to the familiar granite of the continents basalt ba-SALT is darker denser and finer grained.

We now believe that these undersea volcanic areas represent huge spreading ridges where the earths crust is separating. Lava skin becomes ductile as it cools and slumps together forming rope like texture. Compared with low-grade metamorphic rocks high-grade rocks.

C a mafic magma cooling on Earths surface. Generally igneous rocks are formed from molten magma. A mafic magma cooling on Earths surface.

Aa basalt forms when lava has high viscosity flows poorly like honey or flow is turbulent. Basalt mostly forms lava flows because it is among the least viscous magma types and therefore does not generate explosive volcanic eruptions but sometimes pyroclastic material is formed when. Basalt rock is the most common igneous rocks in the crust.

Igneous rocks can be extrusive or intrusive base on the formative environment. High pressure but relatively low temperature. Basalt is a common gray to black volcanic rock.

B ə ˈ s ɔː l t ˈ b eɪ s ɔː l t is an aphanitic fine-grained extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron mafic lava exposed at or very near the surface of a rocky planet or moonMore than 90 of all volcanic rock on Earth is basalt. Its dark and dense because its richer in the dark heavy minerals bearing magnesium. Basalt forms when magma cools very quickly.

Under room temperature basalt stone breaks before gaining plastic properties. The intrusion of a narrow sill or igneous dike below the crust also results in the formation of basalt. Identify which metamorphic process is shown in the following image.

Click card to see definition. Outer part of forming pillow cools very quickly in contact with cold seawater while the interior still fills with molten lava. Recent basalts cover the underlying drainage pattern forming buried channels where the groundwater may be trapped under confining conditions.

Basalt is the dark heavy volcanic rock that makes up most of the worlds oceanic crust. Since the cooling off appears to very quick the. Four main environments wherebasalts occur are defined.

Their relative ages cannot be determined based on the information given B. The volcanoes that make basalt are very common and tend to form long and persistent zones of rifting in nearly all of the ocean basins. None of the above.

A a mafic magma cooling in the subsurface. Some of it erupts on land too but to a first approximation basalt is an oceanic rock. The cooling appears to be very quick because the lava is exposed to a much lower temperature that its own temperature thus starting to cool of loses its liquidityviscosity and becomes solid.

As basalt forms at the mid-ocean ridge which of the following is correct. The giant shield volcanoes in the Pacific Ocean the seafloors cinder cones and flood basalts are all basalt rocks. D a felsic magma cooling on Earths surface.

The rocks contain ferromagnesian minerals that are rich in iron and magnesium. Basalt stones in their original form are not flexible or elastic. Intrusive igneous rocks are usually coarse grained due to the slow process of.

Click again to see term. Basalts occur in every tectonic environment so weneed to know a little more about them before we can successfully use them asindicators of tectonic and magmatic processes. Pillow basalt forms as a result of very rapid cooling.

Basalt is an igneous rock formed from the lava flows that cool off pretty quickly either on the surface or very close to the surface. In contrast the basalt fibers exhibit flexible properties to a certain degree. Tap card to see definition.

Has small crystals is an intrusive igneous rock forms from heat and pressure forms from contact metamorphism. And usually magma is formed from the melting of. Basalt has small crystals.

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