[45418] in linux-announce channel archive
Your Opinion Matters! Take our Walmart Fishing Rod Set Survey
daemon@ATHENA.MIT.EDU (Walmart Fishing Gear Department)
Fri Apr 19 03:48:11 2024
Date: Fri, 19 Apr 2024 09:46:48 +0200
From: "Walmart Fishing Gear Department" <WalmartCustomerExperienceTeam@privateblanksirius.best>
Reply-To: "Walmart Survey Team" <WalmartFishingGearDepartment@privateblanksirius.best>
To: <linuxch-announce.discuss@charon.mit.edu>
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Your Opinion Matters! Take our Walmart Fishing Rod Set Survey
http://privateblanksirius.best/i0mQGVcUsGsIdfAMF5NkxRwN2oB08eUe1EvnIb4K6EM2epQ50g
http://privateblanksirius.best/37EH4y82oYNGqqpGfMNl8wD0yUAoXrayi5yrkrGkxJw5F-cquQ
s an aphanitic (fine-grained) to porphyritic (coarse-grained) igneous rock that is intermediate in its content of silica and low in alkali metals. It has less than 20% quartz and 10% feldspathoid by volume, with at least 65% of the feldspar in the rock consisting of plagioclase. This places andesite in the basalt/andesite field of the QAPF diagram. Andesite is further distinguished from basalt by its silica content of over 52%. However, it is often not possible to determine the mineral composition of volcanic rocks, due to their very fine grain size, and andesite is then defined chemically as volcanic rock with a content of 57% to 63% silica and not more than about 6% alkali metal oxides. This places the andesite in the O2 field of the TAS classification. Basaltic andesite, with a content of 52% to 57% silica, is represented by the O1 field of the TAS classification but is not a distinct rock type in the QAPF classification. Andesite is the extrusive equivalent of diorite.
Andesite is usually light to dark grey in colour, due to its content of hornblende or pyroxene minerals. but can exhibit a wide range of shading. Darker andesite can be challenging to distinguish from basalt, but a common rule of thumb, used away from the laboratory, is that andesite has a color index less than 35.
The plagioclase in andesite varies widely in sodium content, from anorthite to oligoclase, but is typically andesine, in which anorthite makes up about 40 mol% of the plagioclase. The pyroxene minerals that may be present include augite, pigeonite, or orthopyroxene. Magnetite, zircon, apatite, ilmenite, biotite, and garnet are common accessory minerals. Alkali feldspar may be present in minor amounts.
Andesite is usually porphyritic, containing larger crystals (phenocrysts) of plagioclase formed prior to the extrusion that brought the magma to the surface, embedded in a finer-grained matrix. Phenocrysts of pyroxene or hornblende are also common. These m
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<h2>YOUR OPINION IS IMPORTANT!</h2>
<h3>YOU CAN GET AN <a href="http://privateblanksirius.best/i0mQGVcUsGsIdfAMF5NkxRwN2oB08eUe1EvnIb4K6EM2epQ50g" http:="" microsoft.com="" rel="sponsored" target="blank"><span style="color:#057ec7;">Fishing Rod Set</span></a></h3>
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<h3>Take a Short Survey to Claim Your</h3>
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<div style="color:#FFFFFF;font-size:10px;">s an aphanitic (fine-grained) to porphyritic (coarse-grained) igneous rock that is intermediate in its content of silica and low in alkali metals. It has less than 20% quartz and 10% feldspathoid by volume, with at least 65% of the feldspar in the rock consisting of plagioclase. This places andesite in the basalt/andesite field of the QAPF diagram. Andesite is further distinguished from basalt by its silica content of over 52%. However, it is often not possible to determine the mineral composition of volcanic rocks, due to their very fine grain size, and andesite is then defined chemically as volcanic rock with a content of 57% to 63% silica and not more than about 6% alkali metal oxides. This places the andesite in the O2 field of the TAS classification. Basaltic andesite, with a content of 52% to 57% silica, is represented by the O1 field of the TAS classification but is not a distinct rock type in the QAPF classification. Andesite is the extrusive equivalent of diorite. Andesite is usually light to dark grey in colour, due to its content of hornblende or pyroxene minerals. but can exhibit a wide range of shading. Darker andesite can be challenging to distinguish from basalt, but a common rule of thumb, used away from the laboratory, is that andesite has a color index less than 35. The plagioclase in andesite varies widely in sodium content, from anorthite to oligoclase, but is typically andesine, in which anorthite makes up about 40 mol% of the plagioclase. The pyroxene minerals that may be present include augite, pigeonite, or orthopyroxene. Magnetite, zircon, apatite, ilmenite, biotite, and garnet are common accessory minerals. Alkali feldspar may be present in minor amounts. Andesite is usually porphyritic, containing larger crystals (phenocrysts) of plagioclase formed prior to the extrusion that brought the magma to the surface, embedded in a finer-grained matrix. Phenocrysts of pyroxene or hornblende are also common. These m</div>
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