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You cannot determine the age of a "texture". There are numerous methods for dating the age of rocks. Go to Geology.com and search for rock dating methods.
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∙ 14y ago
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Is porphyritic texture is not a feature of sedimentary rocks?
Porphyritic texture is a feature of some igneous rocks, not sedimentary rocks.
Is granite rock porphyritic?
Granite rock is not porphyritic. It is phaneritic because it has a coarse-grained texture.
What is the texture of adakite?
Typically porphyritic with hbl phenocrysts.
What is the texture of an igneous rock from magma that cools in two stages?
It's texture is porphyritic
What Mineral alignment in a metamorphic rock usually gives the rock a porphyritic texture?
A porphyritic texture can be a feature of igneous rocks, but 'porphyritic' is not used to describe metamorphic rock texture. Metamorphic rocks can be foliated or non-foliated, terms used to describe mineral alignment or banding, or the lack thereof.
Is rhyolite's texture a aphanitic?
Rhyolite may be aphanitic or porphyritic.
The igneous rock texture characterized by two distinctly different crystal sizes is the texture?
Porphyritic
What kind of texture does a rock with large crystals scattered on a background of much smaller crystals have?
A porphyritic texture.
Does a porphyritic texture include two different sizes of mineral grains?
Yes
What is a porphyritic texture?
A porphyritic texture is displayed in an igneous rock containing large isolated crystals (phenocrysts) in a mass of fine textured crystals . Porphyritic texture indicates that a magma has gone through a two stage cooling process. The magma has cooled sufficiently underground to allow some minerals to crystallize and grow in size; the magma is then expelled above ground where the remaining liquid magma solidifies quickly, allowing only small crystals to develop.See link below for a picture of a porphyritic texture in a rock.
Igneous rocks with a two-stage intrusive-extrusive origin are recognized by a texture which is?
porphyritic
Igneous rocks are classified based upon their mineral composition and?
And their texture, which can be aphanitic, phaneritic, glassy, or porphyritic. mineral composition and crystal texture
