French Grand Antique Marble (tectonic limestone breccia) (quarry at Aubert, Pyrenees Mountains, France) 15 : 無料・フリー素材/写真
French Grand Antique Marble (tectonic limestone breccia) (quarry at Aubert, Pyrenees Mountains, France) 15 / James St. John
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
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| 説明 | Tectonic breccias in the commercial decorative stone trade are typically called “marbles”. By definition, any breccia will have abundant large angular fragments. The tectonic breccias are generated by intense tectonic crushing and fracturing along fault zones in orogenic belts. Cut and polished samples are typically bicolored or multicolored and are quite striking in appearance."French Grand Antique Marble" is an attractive black and white tectonic limestone breccia from southern France. It has large to small angular fragments of black micritic limestone surrounded by whitish carbonate cement. It has been quarried for millennia. The rock was exploited in Roman and Byzantine times, then abandoned and forgotten. Known Roman names for this rock include “Marmor Celticum” and “Marmor Aquitanicum”. Quarrying resumed after rediscovery of the site in the 1700s, but the area is now exhausted, making this material an “extinct” rock.Locality: old quarry at Aubert, just southeast of Moulis, Lez River Valley, southwest of Saint-Girons, western Ariège Department, central Pyrenees Mountains, far-southern France |
| 撮影日 | 2023-03-10 14:04:56 |
| 撮影者 | James St. John |
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