The deposits of the useful minerals & rocks; their origin, form, and content . illustrated in Fig. 319. The lode-filling consists of auriferous quartz, the gold being partlyfree and partly associated with pyrite, with which latter lead- and coppersulphides sometimes occur. Karpinsky states that the gold contentvaries between 2-5 and 30 grm. per ton, with an average of probably13 grm., though in places it may reach as much as 250 connection with the question of the genesis of these depositsit is significant that the neighbouring Schartasch granitite is stated tocontain up to 1 grm. o
The deposits of the useful minerals & rocks; their origin, form, and content . illustrated in Fig. 319. The lode-filling consists of auriferous quartz, the gold being partlyfree and partly associated with pyrite, with which latter lead- and coppersulphides sometimes occur. Karpinsky states that the gold contentvaries between 2-5 and 30 grm. per ton, with an average of probably13 grm., though in places it may reach as much as 250 connection with the question of the genesis of these depositsit is significant that the neighbouring Schartasch granitite is stated tocontain up to 1 grm. of gold per ton, though this rock, unlike the beresite,is quite undecomposed. The decomposition of the beresite, on the otherhand, is so advanced that analyses permit only doubtful however this granitite contain primary gold, then the beresite dykes,which represent later pulsations from the same parent magma, must alsooriginally have contained primary gold, which quite conceivably becameconcentrated in the contraction fissures which opened as the rock 630 OEE-DEPOSITS The Hohe Tauern in the Eastern Alpsliterature B. CoTTA. Geologische Briefe aus den Allien, Leipzig, 1850, p. 146.—A. v. Lehre v. d. Lagerstatten der Erze, Leipzig, 1879, p. 206.—F. Posepny. Arch. Geol., 1880, Vol. I. p. 487.—M. Vacek. Verhandl. d. k. k. geol. Reichsanst., 1893. Die Untersuchung des Bergbauterrains in den Hohen Tauern, Commissions Report, pub-lished by the Minister of Agriculture, Vienna, 1895. Das Bergbauterrain in den HohenTauern, Jahrb. des naturhistor. Landesmuseums von Karnten, 1897, Part 24.— Die Goldlagerstatten in den Hohen Tauern, Zeit. f. jirakt. Geol., 1897, p. 77. According to Posepny, gold mining in the Hohe Tauern must beaccounted as belonging to the oldest mining in Europe. The districttraversed by the lodes contains two large gneiss massives knownrespectively as the Ankogel and the Hochnarr. Both of these form gentleeleva
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