新疆富蕴县下石炭统南明水组沉积相及其古地理意义

新疆富蕴县以南下石炭统维宪阶南明水组的主要沉积相类型为扇三角洲相、滨海相、海岸平原相,其中扇三角洲相又分为扇三角洲平原和前缘亚相,滨海相主要为临滨亚相。古流向集中于320°~340°,表明物源来自研究区东南方向,推测早古生代塔尔巴哈台褶皱带东段是研究区南明水组的蚀源区。准噶尔东北部早石炭世维宪期古构造格局可能包括准噶尔古陆东北缘由早古生代褶皱带构成的剥蚀区（隆升区）和该剥蚀区西北以南明水组为代表的晚古生代被动大陆边缘。

Sedimentary facies of the Lower Carboniferous Nanmingshui Formation in Fuyun County, Xinjiang and their paleogeography signification

Fan delta-, littoral-and coastal plain facies have been recognized from the Lower Carboniferous (Visean) Nanmingshui Formation, south of Fuyun County, Xinjiang. Fan delta facies can be further divided into fan delta plain and front subfacies. The littoral facies is mainly characterized by shoreface subfacies. The direction of paleocurrent concentrates in 320°~340°, which implies the provenance was the eastern part of Early Paleozoic Taerbahatai fold belt to the southeast of the study area. The palaeotectonic pattern of the northeast Junggar consisted of the provenance area composed by the Early Paleozoic fold belt and the Late Paleozoic passive continental margin represented by the Nanmingshui Formation on the northeastern margin of the Junggar old block during the Early Carboniferous (Visean).