The Mesoproterozoic Jixianian is widely distributed and its complete section was developed in western Henan Province,one of the best areas in the North China Platform where the stratum of the Mesoproterozoic Jixianian is distributed. Based on all kinds of qualitative and quantitative data of the features and associations of sedimentary rocks and sedimentary structures of 121 outcrops,the maps of single factors and sedimentary facies of the Early, Middle and Late Jixianian of Mesoproterozoic in western Henan Province have been compiled, using the single factor analysis and multifactor comprehensive mapping method proposed by professor Feng Zengzhao. It is the first time to apply this quantitative method in western Henan ProvinceIn the Early Jixianian, western Henan Province was characterized by the deposition of beach facies and neritic facies, and in Lushi—Luanchuan areas barrier beach facies was dominantThe facies of the Middle Jixianian were similar to those of the Early Jixianian, but the Lushi—Luanchuan area was characterized by a restricted carbonate platform. The pattern of facies of the Late Jixianian had changed. Songshan—Jishan area changed from an old land to a branching bay. Queshan area received deposition of barrier beach facies. There was no significant change in Lushi—Luanchuan area where restricted carbonate platform was developed. In other areas, beach facies and neritic facies were deposited. The transgression continued from the Early Jixianian to the Middle Jixianian.
出版日期: 2008-12-01
基金资助:
河南省国土资源厅地质矿产重大科技攻关招标项目(豫财招采购[2006]264号)资助
作者简介: 黄秀,女,1981年生,中国地质大学(北京)硕士生,主要从事沉积学研究。
引用本文:
. 豫西地区中元古代蓟县纪沉积相[J]. 古地理学报, 2008, 10(6): 589-598.
. Sedimentary facies of the Mesoproterozoic Jixianian in western Henan Province[J]. JOPC, 2008, 10(6): 589-598.