On the Anisotropy of Ore-bearing Series in Stratiform Deposits
The concept of anisotropy of ore-bearing rocks is prominent in formulating the hypothesis of ore deposits and as an important factor in the formation of sulphide deposits of the stratiform type. The supporters of this hypothesis believe that the essence of the above phenomena is reflected in a selective association of mineralization to well stratified complexes of sedimentary rocks having various physico-mechanical and chemical properties such as hardness, fragility, plasticity, porosity, permeability, jointing, granulometric composition, degree of chemical activity, etc.. It is also considered that in uniformly thick rock series without anisotropic elements no ore concentrations can be formed (SATPAEV, 1958; TY CHINSKY, 1961; and others).
The theory of anisotropy serves as a basis in this case for a concept on “favourable” and “screening” horizons in stratiform ore deposits. In addition, the role of periodicity (rhythmic textures) is discussed.
Attracting the anisotropy of the host rocks and favourable strata is groundless in proving the hydrothermal-metasomatic hypothesis.
KeywordsZinc Permeability Porosity Anisotropy Sulphide
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- ALEXEEV, D.N.: Lithologo-geochemical peculiarities of Precambrian and Paleozoic of Priargunie and polymetallic mineralization. In: State and Tasks of Soviet Lithology. Moscow, Izdat. “Nauka” (1970).Google Scholar
- DERBIKOV, I. V.: On tectonic and paleogeographic conditions in Ore Altai. Trudy SNIIGIMS, vyp. (issue) 25, Gosgeologtekhizdat (1962).Google Scholar
- DRUZHININ, I. P.: Regularities of cyclic structure of variegated deposits of the Dzhezkazgan suite. Izv. Vuz. Ser. Geologiya i Razvedka, No. 7 (1964).Google Scholar
- KORMILITZIN, V. S.: Periore hydrothermally altered rocks of lead-zinc deposits of the East Transbaikalian area. In: Problems of geology and genesis of lead- zinc deposits of Transbaikalian area”. Trudy IGEM, Akad. Nauk SSSR, vyp. 83 (1963).Google Scholar
- MAN’KOV, B. V.: Morphology of bodies and distribution of mineralization in the Tishinsk deposit (Ore Altai). Izv. Akad. Kazakhsk. SSR, Ser. Geol., No. 1, (1964).Google Scholar
- MAN’KOV, B. V.: Structural peculiarities of the Tishinsk polymetallic deposit in Ore Altai, Izv. VUZ. Geologiya i Razvedka, No. 9 (1969).Google Scholar
- POPOV, V. M.: On rhythmicity in sedimentation of copper red suites. Izv. Akad. NaukKirg. SSR, Ser. Estestv. and Tekhnich. Nauk, v. 2, vyp. 1 (1960).Google Scholar
- POPOV, V. M.: On favourable and screening horizons in stratiform deposits of non-ferrous metals. In: Regularities of Location of Mineral Resources, v. 5, Izdat. Akad. Nauk SSSR (1962).Google Scholar
- POPOV, V. M.: On nature of stratiform mineralized fissures enriched with selvage and banded textures in ores of Dzhezkazgan. In: Geochemistry, Mineralogy and Petrography of Sedimentary Formations. M. Izdat. Akad. Nauk SSSR (1963).Google Scholar
- SATPAEV, K.I.: Complex metallogenic prognostic maps of Central Kazakhstan. In: Materials of the Scient. Session on Metallogeny and Prognostic Maps (Reports). Alma-Ata, Izdat. Akad. Nauk Kazakhsk. SSR (1958).Google Scholar
- TYCHINSKY, A. A.: On participation of stratigrapho-lithological control in formation of polymetallic deposits. Geologiya i Geophyzika, No. 4 (1961).Google Scholar