S.V. Nechaev  FEATURES OF METALLOGENY OF THE REGION OF JOINING CONTINENTAL AND OCEANIC SEGMENTS OF THE EARTH’S CRUST OF THE NORTHERN PARTS OF THE HORN OF AFRICA AND INDIAN OCEAN

https://doi.org/10.15407/gpimo2017.01.005

Geology and Mineral Resources of World Ocean 2017, 13 (1): 5-19

S.V. Nechaev 

Kyiv

FEATURES OF METALLOGENY OF THE REGION OF JOINING CONTINENTAL AND OCEANIC SEGMENTS OF THE EARTH’S CRUST OF THE NORTHERN PARTS OF THE HORN OF AFRICA AND INDIAN OCEAN 
Purpose. Discussion of the geological settings of the structures of the Horn of Africa and the Arabian-Indian mid-ocean ridge. Methods. Complex interpretation and comparison of data on the composition of bottom sediments obtained in the 19th voyage of the R / V “Academician Vernadsky”, as well as subsequently published. 
Findings. It is established that the features of the metallogeny of the continental and oceanic segments of the earth’s crust in the tectonic coupling area of the Horn of Africa and the bottom of the Indian Ocean are determined by two cycles of concentration of Manganese, Copper and Tin – by early Paleozoic and Anthropogenic. 
Originality. From the standpoint of the theory of geochemical cycles, the features of metallogeny of the interface between the continental and oceanic segments of the earth’s crust are explained. 
Practical implications. In connection with the increased importance of geological prospecting studies of the ocean floor, important specific recommendations have been formulated for determining zones of search for certain ore occurrences. 
Keywords: geochemical cycles, biogene sediments, Tin.

References

1. Barsukov V.L., Dmitriyev L.V. O roli mantiynykh istochnikov rudnogo veshchestva v formiro­vanii i razmeshchenii nekotorykh mestorozhdeniy poleznykh iskopayemykh. Geologiya rud mesto­rozhdeniy. 1975. № 4. S. 17–19. 
2. Vernadskiy V.I. Ocherki geokhimii. Izbr. sochineniya. 1. M. –L.: Izd. AN SSSR, 1954. S. 11–392. 
3. Vernadskiy V.I. Khimicheskoye stroyeniye biosfery Zemli i yeye okruzheniya. M.: Nauka, 1965. 339 s. 
4. Gornaya entsiklopediya. M.: Sovetskaya entsiklopediya. 2. 1986. 293 s. 
5. Gornaya entsiklopediya. M.: Sovetskaya entsiklopediya. 3. S. 564–566. 
6. Yelizar'yev YU.Z., Chikov B.M. Struktura i voprosy svyazi kontinental'nogo i okeanichesko­go segmentov zemnoy kory v rayone Vostochnoy Afriki. Geologiya i geofizika. 1973. № 7. S. 18–25. 
7. Kozerenko V.N., Lartsev V.S., Savadskiy O.A. Mineral'nyye resursy Somali. Uchenyye za­piski Sovetsko-Somaliyskoy ekspeditsii. M.: Nauka. 1974. S. 332–359. 
8. Nechayev S.V. Geologo-geokhimicheskaya priroda orudeneniya v osadochnom chekhle zapadnoy chasti Vostochno-Yevropeyskoy platformy. Otv. red. Shnyukov Ye.F. Kiyev: Nauk. dumka, 1978. 212 s. 
9. Nechayev S.V. Strukturno-vozrastnyye sootnosheniya kompleksov dokembriya Ukrainskogo shchita i Cheshskogo massiva, nekotoryye geotektonicheskiye i metallogenicheskiye problemy. Geol. zhurnal. 1981. 41. № 2. S. 38–50. 
10. Khain V.Ye., Lomize I.T. Geotektonika s osnovami geodinamiki. M.: MGU. 1995. 559 s. 
11. Khenning R. Nevedomyye zemli. M.: Izd. inostr. lit. 1961. 1. 515 s. 
12. Shnyukov Ye.F., Starostenko V.I., Shcherbakov I.B. i dr. Geologiya i metallogeniya severnoy i ekvatorial'noy chastey Indiyskogo okeana. Otv. red. Shnyukov Ye.F. Kiyev: Nauk. dumka, 1984. 168 s. 
13. Dmitriev L.V., Barsukov W.L., Udinzew G.B. Die Riftzonen des Ozeans und das Problem der Erzbildung. Zeitschr fur angew. Geol. 1972. 18, №.3. P. 133–135. 
14. Holub M., Tencik J. The pattern of the metallogenic development of the south-eastern part of the Bohemian massif and the significance in ore prospecting. The current metallogenic problems of Central Europe. Warsaw. 1976. P. 333–341. 
15. Plimer J.R. Exhalative Sn and W deposits assotiated with mafic volcanism as precursors to Sn and W deposits assotiated with granites. Miner.deposits. 1980. 15. № 3. R. 275–289. 
16. Weinhold G. Zur pravaristischen Vererzung im Erzgebirgskristallin und geotektoniseh – magmatischen Entwiclung wahrend assyntisch-kaledonischen Ara. Freiberg. Forsch. 1977. 1. 53.