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Neogene spore-pollen assemblages and paleovegetation succession of Borehole ZKA02 in Beihai, Guangxi
- Source :
- Dizhi lixue xuebao, Vol 29, Iss 4, Pp 584-598 (2023)
- Publication Year :
- 2023
- Publisher :
- Institute of Geomechanics, Chinese Academy of Geological Sciences, 2023.
-
Abstract
- The history of vegetation and climate change during the Cenozoic has been reconstructed by systematically analyzing the sporopollen assemblage from Borehole ZKA02 in Beihai, Guangxi. Through the analysis of spore-pollen data, four sporopollen assemblages can be recognized. From the Early Miocene to the Middle Miocene, this area was covered mainly by deciduous broad-leaved mixed forest–wet meadow vegetation, with a mild and semi-humid climate. From the end of the Middle Miocene to the early Late Miocene, the study area was dominated by coniferous and broad-leaved mixed forest-wet meadow vegetation, with mild and semi-humid. The middle Late Miocene was a mixed deciduous broad-leaved forest–wet meadow vegetation, with increasing conifers and ferns, and the climate was warm and humid. In the late Late Miocene to Pliocene, it was deciduous broad-leaved mixed forest–wet meadow vegetation. The species of evergreen broad-leaved trees in tropical rain forests and subtropical low mountains increased obviously, and the fern molecules decreased obviously. The climate in the Late Pliocene was warm and semi-arid, drier than the previous three stages. Spore-pollen assemblages reflected the climate change characteristics during the Neogene, which have good comparability with the trend of global climate change.
- Subjects :
- spore-pollen assemblage
neogene
paleo-vegetation
paleoclimate
beihai
Geology
QE1-996.5
Subjects
Details
- Language :
- Chinese
- ISSN :
- 10066616
- Volume :
- 29
- Issue :
- 4
- Database :
- Directory of Open Access Journals
- Journal :
- Dizhi lixue xuebao
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.7accb12d424c4a5583941627c327bb92
- Document Type :
- article
- Full Text :
- https://doi.org/10.12090/j.issn.1006-6616.2023047