A.M. Lurje, 1988. "Copper Sandstone and Schist Formations", Geology and Metallogeny of Sulfide Deposits Noril’sk Region U.S.S.R., O.A. Duzhikov, V.V. Distler, B. M. Strunin, A. K. Mkrtychyan, M.L. Sherman, S.S. Sluzhenikin, A.M. Lurye
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Copper sandstone and schist deposits are developed in the Igarsky region (cf Figure 1, p.2, 3) at the northwestern rim of the Siberian platform. The terrain consists of a pre-Vendian north-south trending preorogenic trough and the Igarsky Baikal-age horst. Small inter-montane basins extend from the main trough southwest into the Igarsky horst. The junction of uplifted blocks of the Igarsky horst with the pre-orogenic trough and the inter-montane basins occurs along faults which form the western border of the Siberian platform (Figure 45, p.192, 193).
The sedimentary strata belong to three structural levels, which correspond to three stages in the geological development: the concluding geosynclinal (early-middle Riphean) stage; the transitional or early platformal (late Riphean) stage; and the platformal (Vendian-Cambrian) stage. The first stage includes the intensely dislocated Ludovsky and Gubinsky strata, these occur in uplifted blocks of the basement. The transitional stage is represented by the Chernorechensky and Izluchinsky suites, which occur in the pre-orogenic trough and the intermontane basins. Peneplaned surfaces of these deposits are transgressed by Vendian-Cambrian marine (essentially carbonate) deposits of the Sukharikhinsky suite, which represent the beginning of platform development.
The present day structure of the Igarsky region formed as a result of Hercynian orogenesis and Mesozoic-Cenozoic activity. It shows an inherited development, for example, the cores of the anticlines coincide with uplifted, wedge-like Baikal-aged blocks, while the synclines coincide with pre-Vendian depressions. The Kulyumbijsky-Sukharikhinsky and Chernorechensky anticlines are the largest; they are separated by the Ust’-Gorbiachinsky (in the north) and Shumninsky (in the)
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The Noril’sk volume is a valuable contribution to the economic geology profession. The translation which is a very literal one from the Russian original, has been ‘donated’ to the Society of Economic Geologists by Falconbridge and Inco. This is the first special publication for the Society. We have two successful series, Reviews in Economic Geology and our Guidebook series. When we were offered this translation we initiated this special publication series. It is hoped that we will continue to pursue and publish other monographs of direct economic interest for our members and the economic geology community at large.
This volume and the accompanying figures (maps), tables and plates presents an excellent overview of the Noril’sk area and the mineralization specific to this region. Considerable awareness of the Noril’sk area has been available through various translations of Russian literature and ever increasing opportunities for western world geoscientists to visit the region. The Society is proud to have this opportunity to provide this comprehensive volume to economic geoscientists.
Many individuals contributed their time, expertise and support. We would like to acknowledge A.J. Naldrett for his efforts in obtaining this translation from Inco and Falconbridge on our behalf. He was also our liaison with the original authors and was very supportive throughout the editing process. Falconbridge initiated the translation and G. Rylkova was contracted to produce a literal translation and we chose to substitute, or identify, a few nonfamiliar Russian terms with equivalent English language terms. However, the substance of the translation has not been changed. The editing concentrated on consistency, accuracy and limited grammatical re-interpretation. A location map and a stratigraphic section were added to the introduction. Suggestions for editing consistency were gratefully received from A. Craigie and R. Horn.
Additional support for production and distribution was received from T. Thompson, J. Robertson, K. Clark.
All figures, tables and plates were redrafted with their interpreted legends by Inco. W. Saftic and W. Peredery provided additional suggestions for drafting format and continuity. Inco and Falconbridge shared all drafting costs and donated this service to the Society of Economic Geologists as well as the translated text. P. Lightfoot gave permission to include the location map and the stratigraphic section in the introduction.
The cover design was produced by C. Podashinsky and the WP formatting was contracted to Keystrokes Business Support Services. Production and printing of the volume was contracted to Citizen Printing Co. Inc. of Fort Collins.