File:Rock thin section andesite.jpg

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Original file ‎(2,088 × 1,550 pixels, file size: 2.34 MB, MIME type: image/jpeg)

Captions

Captions

Photomicrograph of sample 09RDWES301 - an andesite collected during the Redoubt, AK 2009 eruption.

Summary[edit]

Description
English: In this image, the brown crystal in the center is amphibole - and measures about 2.2 mm long. The white rectangles are plagioclase. The blue areas are void space (the epoxy holding the slide together is dyed blue for easy identification of empty areas). The fine-grained matrix holding the larger crystals together is mostly glass, plagioclase, and pyroxene microlites.
Date
Source https://www.usgs.gov/media/images/rock-thin-section-andesite
Author Cheryl Cameron
Camera location60° 29′ 06.72″ N, 152° 44′ 37.68″ W Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

Licensing[edit]

Public domain
This image is in the public domain in the United States because it only contains materials that originally came from the United States Geological Survey, an agency of the United States Department of the Interior. For more information, see the official USGS copyright policy.

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Date/TimeThumbnailDimensionsUserComment
current19:09, 22 March 2019Thumbnail for version as of 19:09, 22 March 20192,088 × 1,550 (2.34 MB)Qtz arenite (talk | contribs)User created page with UploadWizard

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