Zobrazeno 1 - 10
of 168
pro vyhledávání: '"H. Pälike"'
Publikováno v:
Climate of the Past, Vol 20, Pp 25-36 (2024)
The 87Sr / 86Sr of marine carbonates provides a key constraint on the balance of continental weathering and hydrothermal Sr fluxes to the ocean, and the mid-Oligocene to mid-Miocene period features the most rapid rates of increase in the 87Sr / 86Sr
Externí odkaz:
https://doaj.org/article/f21d4a476a5f4f14af3fdf8b3f8994ec
Publikováno v:
Biogeosciences, Vol 20, Pp 597-618 (2023)
Marine plankton is an important component of the global carbon cycle. Whereas the production and seafloor export of organic carbon produced by the plankton, the biological pump, has received much attention, the long-term variability in plankton calci
Externí odkaz:
https://doaj.org/article/4191e2b5cd4545f69ef475fef29ef514
Autor:
D. De Vleeschouwer, M. Peral, M. Marchegiano, A. Füllberg, N. Meinicke, H. Pälike, G. Auer, B. Petrick, C. Snoeck, S. Goderis, P. Claeys
Publikováno v:
Climate of the Past, Vol 18, Pp 1231-1253 (2022)
The Pliocene sedimentary record provides a window into Earth's climate dynamics under warmer-than-present boundary conditions. However, the Pliocene cannot be considered a stable warm climate that constitutes a solid baseline for middle-of-the-road f
Externí odkaz:
https://doaj.org/article/e97c4972ebdf4acd899c96a224fb24c2
Autor:
A. J. Drury, D. Liebrand, T. Westerhold, H. M. Beddow, D. A. Hodell, N. Rohlfs, R. H. Wilkens, M. Lyle, D. B. Bell, D. Kroon, H. Pälike, L. J. Lourens
Publikováno v:
Climate of the Past, Vol 17, Pp 2091-2117 (2021)
The evolution of the Cenozoic cryosphere from unipolar to bipolar over the past 30 million years (Myr) is broadly known. Highly resolved records of carbonate (CaCO3) content provide insight into the evolution of regional and global climate, cryospher
Externí odkaz:
https://doaj.org/article/e1e55902c16e413198a4f8a45414a7cf
Autor:
C. J. Hollis, T. Dunkley Jones, E. Anagnostou, P. K. Bijl, M. J. Cramwinckel, Y. Cui, G. R. Dickens, K. M. Edgar, Y. Eley, D. Evans, G. L. Foster, J. Frieling, G. N. Inglis, E. M. Kennedy, R. Kozdon, V. Lauretano, C. H. Lear, K. Littler, L. Lourens, A. N. Meckler, B. D. A. Naafs, H. Pälike, R. D. Pancost, P. N. Pearson, U. Röhl, D. L. Royer, U. Salzmann, B. A. Schubert, H. Seebeck, A. Sluijs, R. P. Speijer, P. Stassen, J. Tierney, A. Tripati, B. Wade, T. Westerhold, C. Witkowski, J. C. Zachos, Y. G. Zhang, M. Huber, D. J. Lunt
Publikováno v:
Geoscientific Model Development, Vol 12, Pp 3149-3206 (2019)
The early Eocene (56 to 48 million years ago) is inferred to have been the most recent time that Earth's atmospheric CO2 concentrations exceeded 1000 ppm. Global mean temperatures were also substantially warmer than those of the present day. As suc
Externí odkaz:
https://doaj.org/article/2c9cbda7c2704c4da455998fb6fc0496
Autor:
M. P. S. Badger, T. B. Chalk, G. L. Foster, P. R. Bown, S. J. Gibbs, P. F. Sexton, D. N. Schmidt, H. Pälike, A. Mackensen, R. D. Pancost
Publikováno v:
Climate of the Past, Vol 15, Pp 539-554 (2019)
Atmospheric pCO2 is a critical component of the global carbon system and is considered to be the major control of Earth's past, present, and future climate. Accurate and precise reconstructions of its concentration through geological time are therefo
Externí odkaz:
https://doaj.org/article/05f1c31f9be14e5fadebfcb7cb3466bb
Publikováno v:
Climate of the Past, Vol 12, Iss 9, Pp 1765-1783 (2016)
Spectral analysis is a key tool for identifying periodic patterns in sedimentary sequences, including astronomically related orbital signals. While most spectral analysis methods require equally spaced samples, this condition is rarely achieved eithe
Externí odkaz:
https://doaj.org/article/6183543aa32245c59f001810b6087e4e
Autor:
C. Agnini, D. J. A. Spofforth, G. R. Dickens, D. Rio, H. Pälike, J. Backman, G. Muttoni, E. Dallanave
Publikováno v:
Climate of the Past, Vol 12, Iss 4, Pp 883-909 (2016)
We present records of stable carbon and oxygen isotopes, CaCO3 content, and changes in calcareous nannofossil assemblages across an 81 m thick section of upper Paleocene–lower Eocene marine sedimentary rocks now exposed along the Cicogna Stream in
Externí odkaz:
https://doaj.org/article/4fad7282ffcb4c03b787e93745cbca54
Publikováno v:
Climate of the Past, Vol 10, Iss 3, Pp 955-973 (2014)
Deciphering the driving mechanisms of Earth system processes, including the climate dynamics expressed as paleoceanographic events, requires a complete, continuous, and high-resolution stratigraphy that is very accurately dated. In this study, a robu
Externí odkaz:
https://doaj.org/article/42128cf8b7844a9faf45022530a0ccb1
Autor:
S. J. Gibbs, P. R. Bown, B. H. Murphy, A. Sluijs, K. M. Edgar, H. Pälike, C. T. Bolton, J. C. Zachos
Publikováno v:
Biogeosciences, Vol 9, Iss 11, Pp 4679-4688 (2012)
Late Paleocene and early Eocene hyperthermals are transient warming events associated with massive perturbations of the global carbon cycle, and are considered partial analogues for current anthropogenic climate change. Because the magnitude of carbo
Externí odkaz:
https://doaj.org/article/44bfb01129394da5a3f39a594826fa66