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thephototropismofjurassicpetrifiedwoodinnorthchinaplate
Jiang Zikun1; Liu Benpei2; Huang Min1; Deng Shenghui3; Lu Yuanzheng3; Liu Lu2; Li Mingming2; Dong Shuxin2; Wang Yongdong4
2014
Source Publicationactageologicasinica
ISSN1000-9515
Volume088Issue:005Pages:1352
AbstractTrees on the side directly exposed to sunlight generally grow faster than on the opposite side, a phenomenon termed plant phototropism. There are in situ vertical trunks of silicified wood in the Xiadelongwan area of Yanqing County, north Beijing, where the first National Geologic Park of Petrified Wood of China has been built since 2002. A few trunks have well-preserved growth rings. One petrified stump from the formation shows a positive phototropism direction of SW230°. As compared with the modern normal growth stumps in Beijing plain area, which have a positive phototropism direction of SW210 °± 5°, the evidence of wood phototropism supports the conclusion of previous palaeomagnetic studies that the North China Plate has rotated clockwise since the Late Jurassic. The known petrified wood stumps in the Yanshan-Liaoning area are mainly found from the strata of 165-136 Ma, which corresponds to the main stage of the Yanshanian Movement.
Language英语
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/26524
Collection中国科学院南京地质古生物研究所
Affiliation1.Chinese Academy of Geological Sciences
2.中国地质大学
3.Research Institute of Petroleum Exploration & Development, PetroChina
4.中国科学院南京地质古生物研究所
Recommended Citation
GB/T 7714
Jiang Zikun,Liu Benpei,Huang Min,et al. thephototropismofjurassicpetrifiedwoodinnorthchinaplate[J]. actageologicasinica,2014,088(005):1352.
APA Jiang Zikun.,Liu Benpei.,Huang Min.,Deng Shenghui.,Lu Yuanzheng.,...&Wang Yongdong.(2014).thephototropismofjurassicpetrifiedwoodinnorthchinaplate.actageologicasinica,088(005),1352.
MLA Jiang Zikun,et al."thephototropismofjurassicpetrifiedwoodinnorthchinaplate".actageologicasinica 088.005(2014):1352.
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