Characteristics and significance of palynological assemblage of Ziliujing Formation and Shaximiao Formation in Yanjin area, Yunnan Province
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摘要:
对云南盐津地区侏罗系自流井组、沙溪庙组的孢粉组合特征和规律的研究表明，自流井组中以裸子植物花粉占绝对优势，而蕨类植物孢子含量低；裸子植物花粉中以Pinuspollenites为主，蕨类植物孢子只有Laevigatosporites。自流井组时代为早侏罗世，属于热带半干旱-温暖气候。沙溪庙组中裸子植物花粉以Pinuspollenites为主，含有Psophosphaera，Classopollis等；在蕨类植物孢子中Neoraistrickia的含量最高。沙溪庙组时代为中侏罗世，属于热带或亚热带较温暖气候。
Abstract:Based on the characteritics and regularities of palynological assemblage of Ziliujing Formation and Shaximiao Formation of Jurassic in Yanjin area of Yunnan Province, the results show that the pollen of gymnosperms dominates the Ziliujing Formation, while the content of fern spores is low.Pinuspollenites are dominant in the pollen of gymosperms, while only Laevigatosporites were found in the spores of ferns.The Early Jurassic Ziliujing Formation belongs to the tropical semi-arid tropical climate.Pinuspollenites are dominant in the pollen of gymnosperms in Shaximiao Formation, including Psophosphaera, Classopollis, etc.The content of Neoraistrickiais the highest in fern spores.The Middle Jurassic Shaximiao Formation had tropical or subtropical climate.
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Key words:
- Yanjin /
- Ziliujing Formation /
- Shaximiao Formation /
- palynological assemblage /
- stratigraphic age /
- paleoclimate
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表 1 自流井组孢粉化石
Table 1. Statistics of fossil pollen and spores from the Ziliujing Formation
孢粉类群 粒数 百分含量/% 蕨类孢子 2 9.52 Laevigatosporites sp. 2 9.52 裸子植物花粉 19 90.48 Cerebropollenites sp. 1 4.76 Pinuspollenites sp. 14 66.67 Psophosphaera flavus 1 4.76 Psophosphaera crassa 1 4.76 Granasporites magnus 1 4.76 Chasmatosporites sp. 1 4.76 合计 21 100 
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表 2 沙溪庙组孢粉化石
Table 2. Statistics of fossil pollen and spores from the Shaximiao Formation
孢粉类群 粒数 百分含量/% 蕨类孢子 9 42.86 Leiotriletes sp. 1 4.76 Leptolepidites sp. 1 4.76 Neoraistrickia rotundiformis 1 4.76 Neoraistrickia sp. 3 14.29 Murospora sp. 1 4.76 Polypodiisporite sp. 2 9.52 裸子植物花粉 12 57.14 Pinuspollenites sp. 5 23.81 Psophosphaera crassa 2 9.52 Psophosphaera sp. 1 4.76 Quadraeculina sp. 1 4.76 Classopollis sp. 3 14.29 合计 21 100
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[1] 云南省地质矿产局.云南省区域地质志[M].北京:地质出版社, 1990:27-35.
[2] 苏航, 陈智明.浅谈滇东北大地构造特点与成矿关系[J].云南科技管理, 2011, 24(4):55-56. doi: 10.3969/j.issn.1004-1168.2011.04.024
[3] 邓胜徽, 姚益民, 叶得泉, 等.中国北方侏罗系[M].北京:石油工业出版社, 2003:1-361.
[4] 孙立新, 张云, 张天福, 等.鄂尔多斯北部侏罗纪延安组、直罗组孢粉化石及其古气候意义[J].地学前缘, 2017, 24(1):32-51. http://d.old.wanfangdata.com.cn/Periodical/dxqy201701003
[5] 曹继玉, 黄先模.川东北晚三叠世、早侏罗世孢粉组合[J].煤田地质与勘探, 1980, 5:17-22. http://www.cnki.com.cn/Article/CJFDTotal-MDKT198005003.htm
[6] 钱丽君, 白清昭, 熊存卫.陕西北部侏罗纪含煤地层及聚煤特征[M].西安:西北大学出版社, 1987:1-295.
[7] 文子才.南昌地区发现的早侏罗世孢粉组合及其地质意义[J].江西地质科技, 1997, 24(2):62-71. http://www.cnki.com.cn/Article/CJFDTotal-JXZK199702004.htm
[8] 尚玉珂, 程金辉.吉林省龙井市葆园屯田营组孢粉化石的发现及其意义[J].古生物学报, 2018, 57(1):105-118. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=gswxb201801011
[9] 王大宁, 王旭日, 季强.冀北-辽西地区侏罗-白垩纪之交期的孢粉植物群演替与古气候变化[J].地球学报, 2016, 37(4):449-459. http://www.cnki.com.cn/Article/CJFDTotal-DQXB201604009.htm
[10] 陈辉明, 张振来.湖北秭归盆地中侏罗世泄滩组孢粉组合[J].微体古生物学报, 2002, 19(3):301-308. doi: 10.3969/j.issn.1000-0674.2002.03.008
[11] 王永栋, 江德昕, 杨惠秋, 等.新疆吐鲁番-鄯善地区中侏罗世孢粉组合[J].植物学报, 1998, 40(10):969-976. doi: 10.3321/j.issn:1672-9072.1998.10.014
[12] 黄嫔, 管永明, 杨晓清.江苏句容深层早侏罗世孢粉植物群的发现[J].微体古生物学报, 2000, 17(1):85-98, 127-130. http://d.old.wanfangdata.com.cn/Periodical/wtgswxb200001009
[13] 刘兆生.塔里木盆地北缘侏罗纪孢粉组合[J].微体古生物学报, 1998, 15(2):144-165. http://www.cnki.com.cn/Article/CJFDTotal-WSGT802.003.htm
[14] 张前旗, 李建国, 黄迪颖.内蒙古宁城道虎沟中、上侏罗统海房沟组孢粉组合[J].微体古生物学报, 2018, 35(2):190-199. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=wtgswxb201802007
[15] 黄嫔.南京北象山中侏罗世孢粉化石的发现[J].微体古生物学报, 2000, 17(4):457-469, 505-506. doi: 10.3969/j.issn.1000-0674.2000.04.014
[16] 王永栋, 江德昕, 杨惠秋, 等.吐鲁番拗陷中侏罗世孢粉植物群及古环境[J].沉积学报, 1997, 15(3):133-140. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK199700005911
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