【作者】 邓军；

【导师】 孙殿卿； 张国铎； 周显强；

【作者基本信息】 中国地质科学院 ， 地质力学， 1992， 博士

【摘要】 本文运用地质力学的基础理论和工作方法，依据大量的野外地质素材和测试数据对胶东西北地区金矿成矿带的构造控矿规律作了较为系统的分析和研究。全文以控矿构造因素为主线，以翔实的野外地质调查为基础，探讨区域构造体系的发生、发展全过程。重点研究成矿构造体系、控矿规律和矿液运移机制；突出构造活动与成矿时序关系的研究；构造应力与成矿元素活化迁移、分配富集机制的关系以及构造、蚀变、矿化分带性的研究。进而，采用灰色系统和模糊数学理论和方法，揭示控矿构造内部和外部标志在其性质、程度、范围，趋势等方面的变化及其与矿化标志、矿体相对优劣程度在多维时空上的传递演化规律，建立其成矿模式和预测成矿远景区。本文取得的主要结论和认识：(1)区分并厘定了胶东西北部基底构造与中生代构造型式的基本格局，划分并鉴定了区域构造体系(构造带)。(2)详细剖析了主导控矿构造—新华夏系断裂构造的结构特点、力学性质、演化特征、形成机理及其对金矿带的控制作用。(3)建立了构造—蚀变—矿化的分带性及其对应关系，强调矿化类型、组合呈水平为主的空间分带性。(4)区域构造地球化学研究表明，金矿带的形成机制为构造应力激发成矿元素活化、迁移、富集的结果，构造应力场与地球化学场之间存在内在的成因联系。(5)有限元数值模拟法反演了成矿期构造应力状态，为宏观构造分析提供了有力的佐证，亦为成矿预测提供了定量—半定量的实验数据。(6)应用灰色系统理论解决了本征小样本地质构造离散数据建模的问题，揭示了成矿系统内部结构的时空协调规律，并采用模糊数学方法进行了矿化有利区的综合评价，预测了成矿靶区和远景区。作者博士论文将以构造体系理论为基础进行成矿分析作为研究区域成矿规律的核心并贯穿始终，这一研究思路和工作方法是切实可行的。更多还原

【Abstract】 In this paper, utilizing the basic theory and working method ofgeomechanics, systematical analysis and researches have been given to thestructural ore-controlling regularity for gold-ore mineralization belt in thenorthwest Jiaodong in accordance with a large number of the field geologicalmaterial and testing data.With the purpost of the ore-controlling structure elements, the paper in-quires into the whole process of the genesis and development of the regionalstructural system on the basis of the full and accurate field geological research.The focal points of the researches in the paper are: mineralization structuralsystem, ore-controlling regularity and mechanics of the ore solution migration,the relation between structural activity and mineralization time sequence as thehighlight, the relation between tectonic stress and mechanics of migration, par-tition and enrichment of mineralization elements, and minealization zonation ofthe structural alteration. Still further, using the theories and methods of thegrey system and the Fuzzy Mathematics, this paper reveals the changes of thecharacters, levels, sanges, tendency and the like of the inner and outer ore-con-trolling structure marks, furthermore, and the regularity of the transfer evolu-tion in multimonsional time and space for the mineralization marks and the rel-ative goodness or badness of the orebodies, establishes and mineralizationmodel and prognosticates mineralization prospective zones.The main conclusion and cognition in the paper are: (1) to make off and todetermine the basic framworks of the basal and Mesozoic structural patterns in the northwest Jiaodong, to differentiate and authenticate the regional structuralsystem (structural belt). (2) to go into details on structural features, mechanicalproperties, evolutionary characteristics, the mechanism of formation of thedominant controlling structure-Neocathaysian faulted structure, and it,controllability to the gold-ore belt. (3) to establish a zonality as structure-al-teration-mineralization and their correspondance, to stress the mineralizationtype with the zonality in space in horizontal way mainly. (4) to make known inthe study of tectonogeochemistry that, the mechanism of formation of thegold-ore belt in northwest Jiaodong is the result of activity, migration andenrichment of the mineralizing elements excited by the structural stress, andthat, there exist inner genetic connection between stress field and geochemistryfield, (5) to inverse the structural stress state in the mineralization period in theuse of finite element numerical analoque method, that gives convincing evidencefor the structural macro-analysis, and quantitative and half-quantitative ex-perimental data for the mineralization prognosis. (6) to solve the problems ofestablishing model of the dispersion data of the geological structure on the in-trinsic small samples by use of the theory of the gray system, to bring to lightthe coordinating regularity in time and space for the inner structure of themineralization, to appraise complexly the suitable mineralization region bymeans of the theory of the Fuzzy Mathematics, and to prognosticate the aimand prospective mineralization regions.Authors doctoral thesis has engaged in mineralization analysis taked thetheory of tectonic system as basis and kernel, this train of thought and ways ofreseached are fearsible.更多还原