The deposits of the useful minerals & rocks; their origin, form, and content . 6 3hofts Trenches a Adits C. Masonry Ruins (a) >rap of Laurion. Opencut Workings=* Roads Mt. OldRipari Shaft. JVorth (1)) Section across Lanrioii. Fig. 348.—Map (a) and section (b) of Laurion. Lepsius and , mica-schist with lead lodes (ly); K, limestone (Marble) ; L, metasomatic ore-bodies. 748 OEE-DEPOSITS The deepest beds exposed in the Laiirion hills are those of the LowerMarble, which are several hundred metres thick. It is in these that thezinciferous and argentiferous lead deposits are found. Num
The deposits of the useful minerals & rocks; their origin, form, and content . 6 3hofts Trenches a Adits C. Masonry Ruins (a) >rap of Laurion. Opencut Workings=* Roads Mt. OldRipari Shaft. JVorth (1)) Section across Lanrioii. Fig. 348.—Map (a) and section (b) of Laurion. Lepsius and , mica-schist with lead lodes (ly); K, limestone (Marble) ; L, metasomatic ore-bodies. 748 OEE-DEPOSITS The deepest beds exposed in the Laiirion hills are those of the LowerMarble, which are several hundred metres thick. It is in these that thezinciferous and argentiferous lead deposits are found. Numerous occur-rences of gabbro often serpentinized—as well as the granite of Plaka whichwith numerous apophyses lies in the course of the antichnal fault—breakthrough and metamorphose the crystalline schists and the Cretaceousbeds. While the western flank of the Legrana anticline is highly disturbed,the eastern flank dips very regularly at an angle of 10°-20° all the wayto the coast. At Laurion three so-called ore-contacts are distinguished, these beingdisposed as follows : the first or uppermost at the contact between theCretaceous slate and the Lower Cretaceous hmestone ; the
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectminesandmineralresou
