摘要
科拉超深钻的钻进和探测首次提供了以前无法达到的深度的有关古老大陆地壳成分和构造的直接资料。岩石密度和它们弹性的各向异性已成为当今地表地质正式描述形式和参考剖面的主要参数。所给出的完整模型的证据是基于科拉超深钻的探测及辅助的地表地质研究。模型认为贝辰加矿区是一个幔源火山岩－侵入岩中心式成矿系统的水平部分。本文还对铜－镍硫化物矿床产出条件给予了新的解释。
The drilling and investigation of the Kola Superdeep Borehole for the first time provided direct data on the structure and composition of the ancient continental crust at previously inaccessible depths. Rock density and their anisotropy in elestic properties were used as the main parameters for the formalized description and the reference profile on the day surface. The constraints of the proposed integrated model are based both on the investigation of the Kola Superdeep Borehole and on the additional surface studies. The model regards the Pechenga ore district as a horizontal section of a mantle-derived volcano plutonic ore forming system of the central type. It also entails a new interpretation of localization conditions of the sulifide copper nickel deposits and helps to understand the position of the Pechenga ore district in the Pechenga-Imanda-Vavzuga suture zone.
关键词
超深钻
成矿系统
缝合带
探矿
Kola Superdeep Borehole, Pechenga, model ore forming system, suture zone
