| 山东诸城晚白垩世孢粉组合的发现及其地质意义 |
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| 引用本文： | 王开发,张玉兰,蒋辉.山东诸城晚白垩世孢粉组合的发现及其地质意义[J].地质科学,1982,0(3):336-338. |
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| 作者姓名： | 王开发 张玉兰 蒋辉 |
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| 作者单位： | 同济大学海洋地质系 |
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| 摘 要： | 山东晚白垩世沉积以往未见孢粉化石。近年,通过对山东诸城侯家屯钻井岩心的研究,发现了丰富的孢粉化石,为确定地层时代和恢复古气候提供了有力的依据。其孢粉组成如下:
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| 关 键 词： | , |
| 收稿时间： | 1981-05-11 |
| 修稿时间： | 1981-05-11; |
SPORO-POLLEN ASSEMBLAGE OF THE LATE CRETACEOUS FROM ZHUCHENG COUNTY,SHANDONG PROVINCE |
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| Wang Kaifa,Zhang Yulan,Jiang Hui.SPORO-POLLEN ASSEMBLAGE OF THE LATE CRETACEOUS FROM ZHUCHENG COUNTY,SHANDONG PROVINCE[J].Chinese Journal of Geology,1982,0(3):336-338. |
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| Authors: | Wang Kaifa Zhang Yulan Jiang Hui |
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| Institution: | Department of Marine Geology, Tongji Universily, Shanghai |
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| Abstract: | Lots of fossil sporo-pollen grains belonging to many varieties of plants have been found from the drill core of Houjia Village in Zhucheng County,Shandong,through the palynological analysis.Sporo-pollen assemblage is characterized by the dominance of pteridophytic spores occupying 40-56.1% of the total sporo-pollen assemblage,the relative abundance of angiospermous pollen (31.45-32.2%) and a few of gymnosper-mous pollen (12.75-22.1%).The spores are especially characterized by the absolute dominance of Schizaeoisporites with a few of Lycopodium sporites,Hsuisporites,Cyathidites minor,Polypodiaceaesporites,Pterisisporites and Retitriletes.Most of Schizaeoisporites are S.laevigati-formis,S.cretacius,S.kulandyensis and S.evidens.Other are S.certus,S.leptos and S.rotundus.There are relatively abundant Classopollis (5.1-9.1%) among gymnosper-mous pollen with a certain amount of Pinuspottenites,Ginkgoretectina,Psophosphaera,Inaperturopollenites,Monosulcites,Taoxodiaceaepoooenites and rare Ephedripites,Podocorpidites and Tsugaepollenites.Angiospermous pollen are characterized by the abundance of Ulmipollenites and Quercoidites (Ulmipollenites minor 7.7-8.5%,Ulmoideipites tricostatus 0.85-11.2%.Quercoidites minutus 3.4-5%) with a certain amount of Magnolipollis,Salixipollenites,Betulaceoipollenites,Sapindaceidites,Euphorbiacites,Myrtaceidites,Ilexpollenites and rare Extratriporopollenites,Anacolosidites and Aquilapollenites.By means of comparison with schizaeoisporites-Ulmipollenites Classopollis sporo-pollen assemblage found in Chishan Formation of Jiangsu,the second member of Xiangdaopu of Anhui and Nanxiong Formation of Jiangxi,dated as the Late Getaceous.the date of this assemblage should be the late Cretaceous. |
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