Results 1 to 10 of about 899,223 (198)

A paleoprecipitation and paleotemperature reconstruction of the Last Interglacial in the southeastern Alps [PDF]

Climate of the Past, 2023
The Last Interglacial (LIG, ∼130–116 ka) was one of the warmest interglacials of the past 800 000 years and an important test bed for future climate conditions warmer than today. LIG temperature reconstructions from marine records and paleoclimate models
C. Honiat, G. Koltai, Y. Dublyansky, R. L. Edwards, H. Zhang, H. Cheng, C. Spötl   +6 more
doaj   +5 more sources

Holocene paleotemperature reconstruction based on phytolith records of lacustrine sediments in the Badain Jaran Desert, northwestern China

Frontiers in Earth Science, 2022
Quantitative reconstruction of regional paleotemperature is the key to understanding temperature change and its driving mechanisms. In this study, 133 phytolith samples were collected as proxy indicators from lacustrine sediments of the Zhunzhahanjilin ...
Yixin Wang, Kai Ning, Qinghua He, Dongmei Jie, Qingyu Guan   +4 more
doaj   +3 more sources

New genomic insights into long-chain alkenone biosynthesis by the coccolithophorid marine alga Gephyrocapsa huxleyi [PDF]

BMC Genomics
Background Gephyrocapsa huxleyi is a coccolithophoric haptophyte widespread across most marine ecosystems that plays an important role in the carbon cycle. G.
Ruth Pérez Gallego, F. A. Bastiaan von Meijenfeldt, Marc A. Besseling, Marcel T. J. van der Meer, Jaap S. Sinninghe Damsté, Laura Villanueva   +5 more
doaj   +2 more sources

A Gaussian process state-space model for sea surface temperature reconstruction from the alkenone paleotemperature proxy

Environmental Data Science, 2022
Reconstructing past climate events relies on the relevant proxies and how they are related. Depending only on such relationships, however, could not be robust because only few proxy observations are usually available at each age.
Taehee Lee, Jun S. Liu, Charles E. Lawrence   +2 more
doaj   +2 more sources

Environmental DNA sheds new insight on molecular adaptation of foraminifera to temperature from laboratory‐controlled culture experiment [PDF]

Ecology and Evolution
Foraminifera is the most important temperature proxy of the ocean on long time scales. However, the absence of temperature‐controlled experiments at different water depths hinders the advancement of paleotemperature reconstruction with foraminifera from ...
Haotian Li, Yanli Lei, Wenlong Fa, Tianzhen Wu, Tiegang Li   +4 more
doaj   +2 more sources

A new Li/Mg paleothermometer from pteropod shells [PDF]

Scientific Reports
Pteropods are promising proxy archives for paleoceanographic reconstructions but remain underexplored. Previous oxygen isotope analyses indicated that Heliconoides inflatus calcifies at shallow depths (50–75 m), suggesting its potential to record surface-
N. Keul, D. Garbe-Schönberg, V. Kitidis, G. Langer, K. T. C. A. Peijnenburg   +4 more
doaj   +2 more sources

Characterizing groundwater heat transport in a complex lowland aquifer using paleo-temperature reconstruction, satellite data, temperature–depth profiles, and numerical models [PDF]

Hydrology and Earth System Sciences, 2022
Heat is a naturally occurring, widespread groundwater tracer that can be used to identify flow patterns in groundwater systems. Temperature measurements, being relatively inexpensive and effortless to gather, represent a valuable source of information ...
A. Casillas-Trasvina, A. Casillas-Trasvina, B. Rogiers, K. Beerten, L. Wouters, K. Walraevens   +5 more
doaj   +1 more source

Reconstruction of average January temperatures during the early Holocene in the North-East of the Bolshezemelskaya tundra

Лëд и снег, 2020
The aim of the study was to establish the period of accumulation of peatland with ice wedges near Vorkuta town based on series of calibrated radiocarbon dates, to anchor in time the isotope-oxygen curve of syngenetic ice wedge from peatland and to ...
N. A. Budantseva, Yu. K. Vasil'chuk
doaj   +1 more source

Winter air temperature in the early and middle Holocene on the eastern coast of Daurkin Peninsula, Chukotka, reconstructed from stable isotopes of ice wedges

Лëд и снег, 2020
The object of research is the Holocene massive ice veins on the Eastern coast of the Daurkin Peninsula, the easternmost part of the Chukotka. Peat bogs with ice veins occur on the surface of marine terraces (near Uelen and Lorino settlements) and on ...
N. A. Budantseva, A. A. Maslakov, Yu. K. Vasil'chuk, A. V. Baranskaya, N. V. Belova, A. C. Vasil'chuk, F. A. Romanenko   +6 more
doaj   +1 more source

Progress in the study of carbonate clumped isotope in the thermal history of marine basins

Shiyou shiyan dizhi, 2023
The study of thermal history of sedimentary basins is very important for oil-gas accumulation analysis and has decisive influence on oil and gas exploration and oil-gas resource evaluation.
Nansheng QIU, Xin LIU, Yujie XIONG, Yuchen LIU, Qiuchen XU, Qing CHANG   +5 more
doaj   +1 more source