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- Title
湖泊年纹层研究进展与展望.
- Authors
田兴; 高远; 王成善
- Abstract
[ Significance] As a high-resolution geological record with seasonal to inter-annual time scales, the lacustrine varves play an essential role in paleoclimatic and paleoenvironmental research. [Progress] In this review, we summarized the formation and preservation of lacustrine varves, their identification and classification, varve chronology, anf their implications for paleoclimatic and paleoenvironmental changes. Our findings reveal that (1) the formation and preservation of lacustrine varves are influenced by seasonal paleoclimatic and paleoenvironmental changes and are mainly distributed in high-latitude areas of the Northern Hemisphere; (2) the geophysical, geochemical, and geobiological features, or cross-validation of other radiometric dating methods, are necessary to verify the annual nature of the varves; (3) lacustrine varves can be used to establish accurate or floating geochronologies; and (4) lacustrine varves have been used to reconstruct paleoclimatic and paleoenvironmental changes, but research on lacustrine varves is unevenly distributed, with a temporal focus on the Quaternary and a spatial focus on Europe and Americas.[ Conclusions and Prospects] Based on current progresses and problems in lacustrine varve research, future attention should be paid to: (1) strengthen modern sediment monitoring and optimize the identification criteria; (2) systematically construct and improve the research system of lacustrine varves with multiple research approaches; and (3) dig deep into the deep-time lacustrine varves and focus on frontier scientific issues such as annual and interannual paleoclimate change.
- Publication
Acta Sedimentologica Sinica, 2023, Vol 41, Issue 6, p1645
- ISSN
1000-0550
- Publication type
Article
- DOI
10.14027/j.issn.1000-0550.2023.069