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Triz Quarry

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Journal Article
Published: 01 July 2007
Geological Magazine (2007) 144 (4): 731–739.
...DOMINIQUE PROUST; CLAUDE FONTAINE Abstract The amethyst geodes observed in the tholeiitic basaltic flow from the Triz quarry at Ametista do Sul (Rio Grande do Sul, Brazil) show particular wall-layering infillings with, from the outside inwards, celadonite, chalcedony, fine-grained quartz and large...
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Geological setting and geode-bearing lava flow: (a) geographical and geolog...
Published: 01 January 2007
Figure 1. Geological setting and geode-bearing lava flow: (a) geographical and geological settings of the Paraná basin; (b) vertical cross-section of the geode-bearing lava flow in Triz quarry.
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Geological setting and geode-bearing lava flow: (a) geographical and geolog...
Published: 01 July 2007
Figure 1. Geological setting and geode-bearing lava flow: (a) geographical and geological settings of the Paraná basin; (b) vertical cross-section of the lava flow in Triz quarry; 1, 2…7: sampling locations; (c) horizontal sampling along the amethyst level from the basalt to the edge
Journal Article
Published: 01 January 2007
Geological Magazine (2007) 144 (1): 53–65.
...Figure 1. Geological setting and geode-bearing lava flow: (a) geographical and geological settings of the Paraná basin; (b) vertical cross-section of the geode-bearing lava flow in Triz quarry. ...
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Journal Article
Published: 01 July 2017
The Canadian Mineralogist (2017) 55 (4): 701–723.
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Journal Article
Published: 01 April 2013
Mineralogical Magazine (2013) 77 (3): 227–248.
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Journal Article
Published: 01 October 2017
Mineralogical Magazine (2017) 81 (5): 1223–1244.
... development and agate genesis. The water data also supports previous claims that agates from New Zealand and Brazil were formed long after their host. The discovery of agate in the neighbouring quarries of Ardownie and Ethiebeaton in eastern Scotland during the late 20 th century was the first new agate...
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