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correlation by glass shards in thin section

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Journal Article
Published: 01 October 2010
The Canadian Mineralogist (2010) 48 (5): 1255–1265.
... on conjugate sides of a crack are not aligned, as would be expected if the tubules formed as a result of dissolution along pre-existing weaknesses in the glass ( e.g. , Banerjee & Muehlenbachs 2003 , Furnes et al. 2007 , Staudigel et al. 2006 , 2008a ). Polished thin sections...
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Series: GSA Special Papers
Published: 28 December 2018
DOI: 10.1130/2018.2540(26)
EISBN: 9780813795409
...) sorting of 1.49 (poor; Table S4 [see footnote 1 ]). Volcanic rock fragments are the dominant framework component ( Figs. 6A and 6B ) and vary in composition from abundant felsic and intermediate varieties ( Fig. 6D ), including pumice and bubble-wall glass shards ( Fig. 6C ), to less common mafic...
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Journal Article
Journal: GSA Bulletin
Published: 01 May 2011
GSA Bulletin (2011) 123 (5-6): 1112–1126.
... (M1v–M5v), each capped by thin silicified sedimentary units, M1c–M5c ( Byerly, 1999 ). North of the Inyoka fault, the Onverwacht Group includes only the Weltevreden Formation, a 2+-km-thick section of komatiitic tuffs, flow rocks, and minor black cherts ( Lowe and Byerly, 1999 ). Sedimentary rocks...
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Series: GSA Special Papers
Published: 15 August 2018
DOI: 10.1130/2018.2534(01)
EISBN: 9780813795348
... of fine to coarse volcanic ash, typically with unaltered glass shards. Deposition of those sediments occurred predominantly by settling of suspended mud and air-fall tephra. We correlate such deposits along the Kumano transect with units that previous investigators along the Muroto and Ashizuri transects...
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Series: Geological Society, London, Special Publications, Geological Society, London, Special Publications
Published: 01 January 2000
DOI: 10.1144/GSL.SP.2000.170.01.19
EISBN: 9781862394186
.... A thin unit of clast-supported conglomerate, correlated with the base of the Oligocene? Skyu-Chilling Formation (Indus Group) unconformably overlies the mainly volcaniclastic sedimentary rocks of unit (i) (Fig. 8 ; central area of map). (iii) Block-in-matrix mélange. Blocks of pillow lava, lava...
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Journal Article
Journal: GSA Bulletin
Published: 01 January 2014
GSA Bulletin (2014) 126 (1-2): 234–247.
...) no deformation of pumice, adhesion between glass shards; (3) slightly flattened pumice, coalescence of glassy ash material; (4) moderately deformed and fully collapsed fiamme (flattened pumice), moderately foliated matrix; and (5) strong eutaxitic texture of fully collapsed fiamme, ash matrix strongly...
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Journal Article
Published: 27 February 2009
Geological Magazine (2009) 146 (3): 382–399.
... observed in the rhyodacites would require extensive alteration in a regime of high water/rock ratios. However, this is ruled out by the petrographical characteristics of rhyodacites, for example, preservation of glass shards and delicate fiamme structures (Troll, Donaldson & Emeleus, 2004...