CAJ | 학술논문

　　鲁东地区是我国古元古界典型发育地区之一，分布有荆山群和粉子山群，以产滑石矿、菱镁矿、石墨矿而举世瞩目。荆山群和粉子山群形成的大地构造环境多年来倍受争议，有裂谷盆地、活动大陆边缘和俯冲增生杂岩等认识。本文在分析研究这些争议原因的基础上，试图从荆山群和粉子山群层序特征、岩石建造构造组合、变质、变形和古构造环境等因素，并考虑其在后期的发展、演化和构造变形过程中所处的古构造部位和构造改造强度差异等去探讨古元古代荆山群和粉子山群形成的大地构造环境，认为荆山群、粉子山群形成的构造环境应是古弧盆相中陆缘裂谷盆地的组成部分，相当于弧后盆地靠近大陆边缘一侧的构造背景，在古元古代晚期的造山过程中，粉子山群和荆山群等岩石地层单位均卷入了造山作用，其中荆山群发生了深俯冲作用，导致了高压麻粒岩相变质。粉子山群形成的大地构造环境属弧后盆地相，早期具有古岛弧（火山弧）或是弧后伸展的属性，而荆山群形成的大地构造环境为弧后盆地俯冲杂岩亚相。
　　로동지구시아국고원고계전형발육지구지일，분포유형산군화분자산군，이산활석광、릉미광、석묵광이거세촉목。형산군화분자산군형성적대지구조배경다년래배수쟁의，유렬곡분지、활동대륙변연화부충증생잡암등인식。본문재분석연구저사쟁의원인적기출상，시도종형산군화분자산군층서특정、암석건조구조조합、변질、변형화고구조배경등인소，병고필기재후기적발전、연화화구조변형과정중소처적고구조부위화구조개조강도차이등거탐토고원고대형산군화분자산군형성적대지구조배경，인위형산군、분자산군형성적구조배경응시고호분상중륙연렬곡분지적조성부분，상당우호후분지고근대륙변연일측적구조배경，재고원고대만기적조산과정중，분자산군화형산군등암석지층단위균권입료조산작용，기중형산군발생료심부충작용，도치료고압마립암상변질。분자산군형성적대지구조배경속호후분지상，조기구유고도호（화산호）혹시호후신전적속성，이형산군형성적대지구조배경위호후분지부충잡암아상。
The eastern Shandong area is a typical place where the Jingshan group and Fenzishan group (JFG for short) of Palaeoproterozoic formation outcrop, and it is famous for the gigantic reserves of talc, magnesite and graphite deposit. There has been a lot of controversy over the tectonic setting of JFG, with mainly three types of controversial academic view points: rift basin, active continental margin area and subduction-accretionary com-plex. After synthetical analysis of the above view points, this work discusses the tectonic setting of JFG through its stratigraphic sequence, rock assemblage,deformation,metamorphism, palaeotectonic environment and the changes of structure location and intensity during its evolutionary process. The article concludes that the JFG probably formed in the back-arc basins along continental margin. Both Jingshan group and Fenzishan group are all exposed to the paleoproterozoic collisional orogeny. The former probably formed in back-arc basins environ-ment, with the same characteristics as ancient island arc or back-arc extension. The latter probably formed in back-arc basins subduction-accretionary complex. The high-pressure metamorphic granulite facies rocks of Jing-shan group probably resulted from the plate subduction and collision.