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甘蒙交界北山地区早白垩世地层梳理及时代归属新见*
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张明震1 , 刘国龙1, 戴霜2, 陈世强3, 李爱静2, 交巴顿珠1, 张静2, 林少华2 |
New scheme for subdivision and age determination of the Lower Cretaceous of Beishan area near Gansu-Inner Mongolia border,China
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ZHANG Mingzhen 1, LIU Guolong 1, DAI Shuang 2, CHEN Shiqiaing 3, LI Aijing 2, JIAO-BA Dunzhu 1, ZHANG Jing 2, LIN Shaohua 2 |
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| 甘蒙交界北山地区下白垩统甜水井组孢粉化石 1— Cicatricosisporites minor ;2— Cicatricosisporites subrotundus ;3— Densoisporites velatus ;4— Osmundacidites wellmanii ;5— Leptolepidites sp.;6— Cicatricosisporites hallei ,7— Perinopollenites elatoides ;8— Classopollis annulatus ;9— Ephedripites ( Ephedripites )sp.;10— Cycadopites typicus ;11, 12— Jiaohepollis flexuosus ;13— Podocarpidites multisimus ;14— Paleoconiferus asaccatus ;15,16— Piceaepollenites sp.。所有比例尺均为20 μm |
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