Vesicular texture is a volcanic rock texture characterized by a rock being pitted with many cavities (known as vesicles) at its surface and inside. This...
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Extrusive rock (section Texture)
such as in pumice, scoria, or vesicular basalt. Other examples of extrusive rocks are rhyolite and andesite. The texture of extrusive rocks is characterized...
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Igneous textures – Property of igneous rocks Vesicular texture – Texture of small enclosed cavities found in some volcanic rocks Soil texture – Property...
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Volcanic rock (section Texture)
Volcanic rocks often have a vesicular texture caused by voids left by volatiles trapped in the molten lava. Pumice is a highly vesicular rock produced in explosive...
22 KB (2,430 words) - 08:07, 20 May 2024
chrysocolla with a covering of drusy quartz Amygdule Rock microstructure Vesicular texture "vug". The Free Dictionary. Farlex. Retrieved 17 April 2016. Geology...
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Stromatolitic Stylolitic Subhedral Symplectite Tuffaceous Trachytic texture Vesicular texture Variolitic Vitreous Vuggy Geology portal Crystallography Fracture...
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vapor and carbon dioxide trapped within the solidified flows formed a vesicular texture (literally millions of small bubbles). Later, groundwater transported...
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fine to medium grained, green to bluish green coloured with abundant Vesicular texture filled with quartz. The lavas and the associated pyroclastic rocks...
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it transforms to a clinopyroxene. The presence of cristobalite, vesicular texture and some other petrographic observations indicate that the lunar pyroxferroite...
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scoria closer to the summit of the volcano. With a finer grain and vesicular texture, the lava has phenocrysts of white plagioclase with sodic labradorite...
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extremely vesicular rough-textured volcanic glass, which may or may not contain crystals. It is typically light-colored. Scoria is another vesicular volcanic...
29 KB (3,471 words) - 10:44, 19 August 2024
products of subglacial volcanism but they differ in glass alteration and vesicular texture, suggesting that they both formed under slightly different conditions...
52 KB (6,321 words) - 19:04, 28 September 2024
bubbles accumulate in a melt that is crystallizing, they create a vesicular texture. Vesicles are created by super cooling a melt while gases are present...
35 KB (4,780 words) - 16:14, 8 January 2024
dissipation regime. This results in the formation of generally hollow and/or vesicular, branching assemblages of glassy tubes, crusts, and clumped masses. Fulgurites...
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1998). "Distribution and significance of crystalline, perlitic and vesicular textures in the Ordovician Garth Tuff (Wales)". Bulletin of Volcanology. 60...
42 KB (4,848 words) - 16:53, 17 September 2024
often formed in expense of sandstone; it may have both glassy and vesicular texture. Clinker – it usually refers to fused, not completely melted, shales;...
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olivine-bearing basalt Porphyry – Textural form of igneous rock with large grained crystals in a fine matrix Pumice – Extremely vesicular volcanic rock, typically...
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several thousand years. Traditionally carved out of a single block of vesicular basalt, molcajetes are typically round in shape and supported by three...
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Lava flows in the area have a black and glassy appearance with a vesicular texture. The basalt and basaltic andesite lava flows from Belknap include...
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term "granite" already assumes content with feldspar and quartz. The rock texture thus determines the basic name of a felsic rock. QAPF diagram List of minerals...
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highly advanced, the altered rock surface show the fabric similar to vesicular texture, called pseudovesicular structure. Dorn, R.L. 2004. Case hardening...
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rocks. They are very commonly porphyritic, vitreous, and sometimes even vesicular. In fact, many of them are petrologically indistinguishable from lavas...
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north–south slope. Lavas have gray-black porphyric and in some places vesicular textures. Andesine-labradorite plagioclase and pyroxene phenocrysts are found...
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matrix displaying varied degrees of trachytic texture. Less than 5% of the andesite has vesicular textures. Plagioclase, hornblende and augite phenocrysts...
60 KB (6,995 words) - 09:25, 17 August 2024
Scoria is a pyroclastic, highly vesicular, dark-colored volcanic rock formed by ejection from a volcano as a molten blob and cooled in the air to form...
7 KB (991 words) - 17:48, 6 September 2024
Lake unit rocks include biotite, plagioclase and spinel. Variable vesicular texture has been noted on rocks erupted during different eruptions. Temperatures...
113 KB (11,405 words) - 04:47, 29 July 2024
and results in textures such as flow foliations, spherulitic, nodular, and lithophysal structures. Some rhyolite is highly vesicular pumice. Peralkaline...
21 KB (2,235 words) - 16:21, 25 August 2024
associated controversy, goes back centuries: In the third kind of bread, a vesicular appearance is given to it by the addition to the dough of some ammoniacal...
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metamorphism, although vesicular basalts and the like will have their vesicles filled with zeolite minerals, forming amygdaloidal texture. Tuff can also become...
3 KB (313 words) - 18:01, 15 July 2022