|
|
|
UDC 553.411:(553.2+550.42)(571.513)
NONLINEAR METALLOGENY AND BULK GOLD MINERALIZATION OF UNCONVENTIONAL TYPE. PT II. KEDROVSKOYE GOLD-ORE OCCURRENCE
A. B. Shepel, M. E. Gavrilenko
In the second part of the paper (the first one was issued in no. 4, 2015), one of the gold-ore occurrences of the Fedorovsko-Magyzy-Kaltasskaya ore-controlling zone - the large-scale non-conventional Kedrovskoye occurrence - is discussed in terms of the ore-field structure, the structure of ore-hosting formation, and distribution regularities of mineralisation therein. The authors studied the material composition, metasomatic zoning, physical-chemical formation conditions, distribution pattern of rare earth elements as well as carbon and oxygen isotopes in lense- and blanket-form deposits and bodies of beresite-like sericite-albite-ankerite metasomatites, with which the gold mineralisation is associated. The confinement of the Kedrovskoye occurrence to a deep fault, peculiarities of its material composition and formation conditions enable the authors to suggest the involvement of intratelluric fluids in the crustal ore genesis and their prevailing part as a source of matter and energy.
Key words: gravity-structural map, frequency-azimuth analysis, seismic-tectonic compaction, fracturedtype reservoirs, bedded-block structure, estimation of oil-and-gas content.
DOI 10.20403/2078-0575-2016-1-71-85 |
|
|
|
© SNIIGGiMS, 2017. All rights reserved. | 67 Krasny pr., Novosibirsk, 630091 Russia. Tel.: 73832214947, 73832214980, fax: 73832214947