摘要
为了明确珠江口盆地新近系珠江组碎屑岩体系的沉积特征及沉积相的平面展布,从东沙隆起整体出发,通过岩石学特征、岩心观察、综合录井、测井资料、单井沉积相研究,认为研究区的碎屑岩体系发育三角洲、无障壁滨岸—海滩和浅海3类沉积相,可识别出三角洲前缘、前三角洲、前滨、近滨、远滨、陆棚等6种沉积亚相及若干沉积微相;得出了研究区的沉积相平面展布图,并明确了物源方向。
In order to make sure the sedimentary characteristics and sedimentary-facies distribution of clastic rocks in Neogene Zhujiang Formation, some aspects are studied for the Dongsha Uplift, including petrographic characteristics, core observation, comprehensive mud-logging and well-logging data, single-well sedimentary facies. Results show that in the study area, (1) there are three sedimentary facies, containing delta, beach and shallow sea; and (2) there are six sedimentary subfacies (delta front, front delta, foreshore, nearshore, offshore and continental shelf) and some sedimentary microfacies. Finally, the planar distribution of sedimentary facies is obtained and the source direction is determined.
出处
《天然气技术与经济》
2012年第6期23-26,78,共4页
Natural Gas Technology and Economy
基金
国家科技重大专项(2008ZX05025)
关键词
碎屑岩
沉积相
东沙隆起
珠江组
珠江口盆地
clastic rocks, sedimentary facies, Dongsha uplift, Zhujiang Formation, Pearl River Mouth Basin
