Tectonic controls on ore-bearing intrusions of the Talnakh Ore Junction: Position, morphology, and ore distribution
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Abstract
Analysis of fifteen hundred deep boreholes permits understanding of Noril'sk-type, ore-bearing intrusions with respect to stratigraphic position, thickness, and ore distribution, and provide insights into the evolution of the Talnakh and Noril'sk ore junctions. Weakly miner-alized, Lower Talnakh-type intrusions were emplaced early in each ore junction, followed by emplacement of the ore-bearing intrusions. The morphology of the Lower Talnakh-type intrusions appears to have been controlled largely by inferred, arcuate faults; tight, N-S-trend-ing folds in the Noril'sk-Kharaelakh fault zone; and pre- Tungusskaya anticlines. The spreading and morphology of the ore-bearing intrusions were influenced by these features, but were more strongly controlled by the Noril'sk-Kharaelakh fault zone and by arcuate, thickened lenses within the Lower Talnakh-type intrusions. Host-rock characteristics strongly influenced the shapes of the ore-bearing intrusions in section and plan, the configurations of their flanking and frontal parts, and the attitudes of their peripheral sills.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Tectonic controls on ore-bearing intrusions of the Talnakh Ore Junction: Position, morphology, and ore distribution |
| Series title | International Geology Review |
| DOI | 10.1080/00206819409465503 |
| Volume | 36 |
| Issue | 11 |
| Year Published | 1994 |
| Language | English |
| Publisher | Taylor & Francis |
| Description | 25 p. |
| First page | 1033 |
| Last page | 1057 |
| Country | Russia |
| Other Geospatial | Talnakh Ore Junction |
| Google Analytic Metrics | Metrics page |