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What mineral is formed when shale and basalt are exposed to low-grade metamorphism?
When shale and basalt are subjected to low-grade metamorphism, the mineral formed is typically clay minerals, particularly illite or chlorite. In the case of basalt, the alteration can lead to the formation of minerals like zeolites as well. The metamorphic process involves the recrystallization of existing minerals under heat and pressure, resulting in these secondary minerals.
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How do metamorphism affect basalt?
Metamorphism affects basalt by altering its mineral composition and texture due to increased temperature and pressure conditions, often resulting in the formation of metamorphic rocks such as amphibolite. During this process, minerals in basalt, such as plagioclase and pyroxene, can recrystallize or transform into new minerals like garnet or hornblende. The resulting texture may become more foliated or granular, depending on the specific metamorphic conditions. Overall, metamorphism enhances the physical properties and stability of the original basalt material.
At divergent boundaries is what metamorphism results from extrusion of basaltic lava?
A metamorphic rock formed from Basalt is Schist. a.k.a. Green Schist
Sandstone and basalt are changed by heat and pressure to form?
Sandstone is changed into quartzite and basalt is changed into schist or gneiss through the process of metamorphism.
How small is basalt?
Basalt formations can be massive, encompassing many square miles. The mineral crystals which make up basalt require magnification to see.
Is basalt an element a mineral or a rock?
Basalt is a rock composed of minerals which are composed of elements.
How does metamorphism affect basalt?
Metamorphism can cause basalt to undergo changes in mineral composition and texture, forming new minerals like chlorite, epidote, or amphibole. The original basalt can recrystallize into a denser, harder rock known as greenstone due to metamorphic heat and pressure. The degree of metamorphism can vary, with low-grade metamorphism likely resulting in minor changes, while high-grade metamorphism can drastically alter the basalt's appearance.
What makes the eclogite rock?
Extreme metamorphism of oceanic crustal basalt.
Is Basalt contains the greatest quantity of which mineral?
Basalt contains the greatest quantity of the mineral plagioclase feldspar.
What mineral group is Basalt in?
jli
Is amphibolite foliated?
Yes, amphibolite is a foliated metamorphic rock. It forms through the metamorphism of basalt or gabbro and typically exhibits a well-developed foliation called schistosity due to the alignment of its mineral grains.
What is the shape of the basalt?
Basalt is a rock, not a mineral, and therefore does not have a crystal structure of it's own.
At divergent boundaries is what metamorphism results from extrusion of basaltic lava?
A metamorphic rock formed from Basalt is Schist. a.k.a. Green Schist
How does metamorphism affect baslt?
Basalt when metamorphosed turns to the following rocks: (LEAST PRESSURE AND TEMPERATURE TO THE MOST) + mineralogy -Greenschist-albite, epidote, chlorite -Amphibolite-amphioble, plagioclase feldspar -Granulite-calcium-rich pyroxene and plagioclase feldspar -Eclogite-sodium-rich pyroxene and garnet
Sandstone and basalt are changed by heat and pressure to form?
Sandstone is changed into quartzite and basalt is changed into schist or gneiss through the process of metamorphism.
Does basalt have sodium in it?
No. Calcite is not an igneous mineral. Basalt primarily consists of pyroxines and plagioclase with some olivine.
What is the main mineral type of oceanic plates?
it is basalt
How small is basalt?
Basalt formations can be massive, encompassing many square miles. The mineral crystals which make up basalt require magnification to see.
