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Examples ofporphyroblast
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The internal inclusion trail geometries preserved within a first phase ofporphyroblastgrowth.
From theCambridge English Corpus
The wrapping of mica-rich matrix foliation around the garnets indicates continuum of deformation afterporphyroblastgrowth.
From theCambridge English Corpus
Note the chloritoidporphyroblastto the upper left.
From theCambridge English Corpus
S1 wraps around a chloritoid-cored chloriteporphyroblast.
From theCambridge English Corpus
The core of the augen is aporphyroblastor porphyroclast of a hard, resilient mineral such as garnet.
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This example is from Wikipedia and may be reused under a CC BY-SA license.Whereas most researchers are convinced thatporphyroblastmay rotate during deformation, some believe that porphyroblasts do not rotate.
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This example is from Wikipedia and may be reused under a CC BY-SA license.The augen grows by crystallisation of a "mantle" of new mineral around theporphyroblast.
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This example is from Wikipedia and may be reused under a CC BY-SA license.From the texture (if any) shown in the inclusion, the deformation history of the rock can be interpreted, as the inclusions are always older than theporphyroblast.
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This example is from Wikipedia and may be reused under a CC BY-SA license.The relationship ofporphyroblastgrowth to deformation is typically evaluated by comparing the shape orientation of trails of mineral inclusions in the porphyroblast to the matrix fabric.
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This example is from Wikipedia and may be reused under a CC BY-SA license.Metamorphic textures include those referring to the timing of growth of large metamorphic minerals relative to a phase of deformation before deformation porphyroclast after deformationporphyroblast.
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This example is from Wikipedia and may be reused under a CC BY-SA license.Partitioning of deformation along an orogen and its effects onporphyroblastgrowth during orogenesis.
From theCambridge English Corpus
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