地质与资源2019，Vol.28Issue(3)：236-245,10.
豫北东姚一带马家沟组层序地层研究
STUDY ON THE SEQUENCE STRATIGRAPHY OF MAJIAGOU FORMATION IN DONGYAO AREA, NORTHERN HENAN PROVINCE
摘要
Abstract
The Middle Ordovician Majiagou Formation is a set of marine carbonate rock strata. The formation is developed completely with stable distribution in Dongyao area of northern Henan Province,a favorable area to study the sequence stratigraphy. Based on the systematic study of surveyed profiles,with the rock assemblage and vertical variation rules of 8 lithologic members,two Type I and five Type II sequence boundaries are identified in the formation, which is further divided into 1 second﹣order sequence and 6 third﹣order sequences. The sequence stratigraphic framework of Majiagou Formation in Dongyao area is established by analyzing the characteristics of each order sequence. According to the features of sequence stratigraphy,it is believed that the sedimentary environment of Majiagou Formation in the area has undergone 6 transgressive and regressive cycles. The study can provide a reference for research of the Paleozoic sea level change in northern Henan Province.关键词
马家沟组/中奥陶统/层序地层/体系域/东姚/河南省Key words
Majiagou Formation/Middle Ordovician/sequence stratigraphy/system tract/Dongyao area/Henan Province分类
天文与地球科学引用本文复制引用
王艳慧,白国典,王玺,杜保峰,琚根社,李瑞强..豫北东姚一带马家沟组层序地层研究[J].地质与资源,2019,28(3):236-245,10.基金项目
中国地质调查局地质调查项目"河南1:5万东姚集幅、鹤壁幅、临淇镇幅、庙口幅区调"(12120111219770). （12120111219770）
