A DISCOVERY OF EARLY CRETACEOUS SPOROPOLLENS IN ZHENPING COUNTY OF HENAN PROVINCE AND ITS SIGNIFICANCE
-
摘要: 本文首次论述了河南镇平早白垩世白湾组的孢粉组合面貌及其特征。根据孢子花粉属、种的垂直分布,自下而上把白湾组的孢粉组合可分为两个亚组合。下亚组合以Classopollis-Scneoisporiles为特征;上亚组合以Clas-sopllis-Scizneoisporiles-Jugella-Cidricosisporiles为特征。根据孢粉组合特征,把白湾组的时代确定为早白垩世,并以下亚组合代表别里亚士期-凡兰今期,上亚组合代表欧特里期-巴列姆期。Abstract: For the firsttime,the paper describes the asssemblage and the features of the early Cretaceous sporo-pollens discovred in the Baiwan Formation,Henan Province. According to their vertical distributions of genera and families, the sporo-pollenassemblage in the Baiwan Formation can be divided in to two sub-assemblages from bottom to top. The lower one ischaracterized by classapollis-Schizacois parties while the upper one by Classsopollis-Schizaneoisporites-Jugella-Cicatricasisporites.Based on the assemblage features of the sporo-pollen,the age of the Baiwan Formation is ascertained as the Early Cretaceous,therefore,the lower sub-assemblage represents Berriasian-Valanginian,and the upper one represents Hauterivian-Barremian, respectively.
-
[1] 黎文本中国古生物地理区系,1983,195-150 [2] 王从凤,钱少华.石油与天然气地质,1981;2(9):375-381 [3] 刘兆生.地层学杂志,1983,7(1):33-36 [4] 赵传本.二连盆地早白圣世孢粉组合,1987 [5] 黎文本.中国科学院南京地质占生物研究所集刊,1981,(19):67-119 [6] 薄荣干,吴洪章中国地质科学院沈阳地质矿产研究所所刊,1985;(1):47-113 [7] 王开发,永章昌.地质论评,1986,32(4);325-330 [8] 郑芬,黎文本古生物学报,1986,25(2);201-210 [9] 张春彬.古生物学报,1962;10(2);247-273 [10] 内蒙古自治区地质局主编.内萦古固阳含煤盆地中生代地层古生物,1982 [11] 余静贤,蒲荣干,吴洪章.中国地质科学院院报,1986,(13):95-115 -
点击查看大图
计量
- 文章访问数: 584
- HTML全文浏览量: 46
- PDF下载量: 376
- 被引次数: 0
下载:
苏公网安备32021102000780号