Abstract: The Sareke copper deposit, a largesize glutenitetype copper deposit, had been controlled by the Sarekebayi Mesozoic secondary basin in Xinjiang, China. However, tectonic patterns in this basin remain unclear. To uncover the nature of the tectonic pattern in the basin, it is useful to promote a new high level research on the regularities of mineralization and search for the blind orebody in the studied area. Here, based on the new mapping methods of tectonic lithofacies, the following discoveries were made on the tectonic patterns in the basin and their orecontrolling regularities for the Sareke copper deposit: (1) The MesoProterozoic Akesu Group Complex constituted the lower basetectonic layer attached to the semiin situ allochthonous system of the strata; whereas the Paleozoic strata had been the upper basetectonic layer attached to the in situ system of the strata. In the initial stage of the basin formation, the basin was first filled with coarse clastic rocks near the Lower Jurassic sedimentaryfault in the mountainfront, which later evolved into coalbearing clastic rocks and eventually formed the carbonaceous mudstone, dark siltstone and coal layers in the limnetic facies. The maximum lake flooding plane at the Bathonian stage of the Middle Jurassic main basin formation, however, contained deeplake, seiche and seismite facies of crystallized limestone, calcirudytemarl and argillaceous conglomerate, and syngenetic argillocalcareous breccia, respectively. It suggests that three groups of NEtrending synfaults might be the main controlling factor for the basinformation. The enclosure of this wilting intracontinental lakebasin was evidenced by the Lower Cretaceous clastic rocks with upcoarsening in the intracontinental facies. (2) The tectonic paleogeographical framework in the study area was surrounded by mountains on three sides and opened in the NWtrending. Tectonic inversion in the beginning of the Kuzigongsu Stage (the Callovian Stage) resulted in the mountain enclosed lakebasin. Consequently, the remnant of the intracontinental enclosed lakebasin supported the best tectonic paleogeographical framework, creating an oreformation environment for the Sareke glutenitetype copper deposit. The Sarekebayi basin was attached to the intracontinental enclosed lakebasin befallen the Southwest Tianshan orogenic belt, and its geodynamics may be of the Mesozoic apartpull sag type. (3) The internal tectonic patterns of the basin mainly consisted of a ruched multiple syncline, the NWtrending baseuplifted zone, paleotectonic lowlands, tectonic slopebreak, synsedimentary faults and drapefolds. These tectonic patterns and their association and subsequent deformation obviously controlled the ore type, i.e. the Sareketype, a glutenitetype, of the copper deposit. These strong reducing facies of the hydrocarbons metallogenic fluid might have been enclosed and trapped by the interlayer fault and fracture zone and lithofacieslithology above the covered baseuplifting zone in the basin. They might have caused the largescale mineralization and accumulation of mineralizing materials, through multiple coupling with lithofacieslithological development and strong geochemical lithological interaction with the copperbearing ironyoxide lithofacies (the amaranth copperbearing irony hybrid conglomerate).

Key words:  glutenitetype copper deposit, intermontane apartpull basin, internal tectonic pattern, ruched multiple syncline, blind fold