|
Information and Service
|
|
| This Article | |
 |
Supporting info |
|
PDF(2837KB) |
|
[HTML] |
|
Reference |
| Service and feedback | |
|
Add to Citation Manager |
|
Cite This Article |
|
Email Alert |
| Keywords | |
|
Gansu |
|
Baojishan Basin |
|
Middle Jurassic |
|
Czekanowskia (Vachrameevia) shiguaiensis |
|
paleoatmospheric CO2 |
| Authors | |
|
LIU Jun |
|
MA Li-Tao |
|
PENG Lin |
|
CHEN Ying-Quan |
|
ZHANG Li |
|
FAN Jun-Jie |
|
YAN De-Fei |
| PubMed | |
|
Article by Liu, J. |
|
Article by Ma, L. T. |
|
Article by Peng, L. |
|
Article by Chen, Y. Q. |
|
Article by Zhang, L. |
|
Article by Fan, J. J. |
|
Article by Yan, D. F. |
Cuticular of Czekanowskia (Vachrameevia) shiguaiensis from the Middle Jurassic in Baojishan Basin��Gansu and its paleoenvironmental significance
LIU Jun, MA Li-Tao, PENG Lin, CHEN Ying-Quan, ZHANG Li, FAN Jun-Jie, YAN De-Fei
1�� School of Earth Sciences��Lanzhou University��Lanzhou 730000��China; 2�� Key Laboratory of Mineral ��esources in Western China��Gansu Province (Lanzhou University )��Lanzhou 730000��China; 3�� Gold Geological Institute of CAPF��Langfang 065000��Hebei��China
Czekanowskialean fossils are discovered from the Middle Jurassic Yaojie Formation in the Baojishan Basin��Gansu�� They are assigned to Czekanowskia (Vachrameevia) shiguaiensis Sun et al�� according to the leaf morphology and epidermal structures��Compared the stomatal ratio between the fossil and the nearest living equivalent species--Ginkgo biloba L., the value of CO2 concentration in the Middle Jurassic Baojishan Basin was deduced as about 1. 55×0��3 ��which is closer to fitted curve of the GEOCA��B �� carbon balance model�� It shows that Czekanowskia (Vachrameevia) shiguaiensis might be a good fossil plant for reconstructing paleoatmospheric CO2 level�� The results indicate that the climate of Baojishan Basin was warm and wet in the Middle Jurassic��