Mendeley
TY  _  JOUR
ID  -  1402070644212
TI  -  Paleoflora and Paleoclimate of Norian (Late Triassic) in Iran
JO  -  Iranian Journal of Geology
JA  -  ES
LA  -  fa
SN  -  1735-7128
AU  -  SAADATNEJAD JAVAD
AD  -  دانشگاه فردوسی مشهد
Y1  -  2023
PY  -  2023
VL  -  66
IS  -  
SP  -  23
EP  -  40
KW  -   Iran
KW  -   Norian
KW  -   Paleoclimate
KW  -   Paleoflora. 
DO  -  
N2  -  Rock beds containing plant macrofossils of Norian in Alborz region belong to two stratigraphic units of Lalehband and Shahmirzad. The same beds in Kopeh-Dagh area belong to Mian-Kuhi Formation and in Central Iran belong to Qadir submember in Tabas region and Dehroud member in Kerman region. In general, plant diversity and vegetative cover during the Norian stage is less than Rhaetian especially Jurassic (Shemshak group) and the highest plant diversity of Norian in the Alborz basin is related to the phyllum of Pteridospermophytes (seed ferns) and in the Central Iran basin is related to the phyllum of Pteridophyta (ferns) indicating the higher humidity of the mentioned time in Central Iran basin and the drier climate in Alborz basin. The highest diversity of vegetation in Norian sediments throughout Iran belongs to the seed ferns (Pteridospermophyta) and the lowest diversity belongs to Ginkgophytes so that they comprise 32% (one third of the vegetation) and 6.5% of the total vegetation, respectively. Plant-covered areas throughout Alborz were interconnected during the Norian period and there was no extensive separation between them. The plant macrofossils assemblage in both Alborz and Central Iran basins confirms the relatively humid subtropical to tropical climate for the Norian but less humidity compared to the Rhaetian. Also, the vegetation of Norian in Alborz was less dense and scattered than Central Iran during Norian.


UR  - rimag.ir/en/Article/44212
L1  - rimag.ir/en/Article/Download/44212
ER  -  
