Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Jessica L. Oster"'
Autor:
Julia Homann, Jessica L. Oster, Cameron B. de Wet, Sebastian F. M. Breitenbach, Thorsten Hoffmann
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-9 (2022)
A California stalagmite records vegetation shifts and increased fire activity during the 8.2 kyr event. These changes occur alongside oscillations between wet and dry extremes suggesting tight coupling between climate whiplash and fire activity.
Externí odkaz:
https://doaj.org/article/1dcec9bb30f646468ccc5c6ce2e7057d
Autor:
Jessica L. Oster, Elli R. Ronay, Warren D. Sharp, Sebastian F. M. Breitenbach, David J. Furbish
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 24, Iss 4, Pp n/a-n/a (2023)
Abstract Speleothem initial uranium isotope ratios ((234U/238U)i) can be influenced by processes along the seepage water flow‐path including alpha‐recoil into porewater during 238U decay and hostrock weathering, the balance of which can reflect t
Externí odkaz:
https://doaj.org/article/6e87df7e306b4f6387eff2546b1a1d66
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
Abstract A fast-growing stalagmite from the central California coast provides a high-resolution record of climatic changes synchronous with global perturbations resulting from the catastrophic drainage of proglacial Lake Agassiz at ca. 8.2 ka. High f
Externí odkaz:
https://doaj.org/article/0ad635c2ba594349aef110616763c4d7
Publikováno v:
Quaternary, Vol 2, Iss 1, p 5 (2019)
Speleothem oxygen isotope records from the Caribbean, Central, and North America reveal climatic controls that include orbital variation, deglacial forcing related to ocean circulation and ice sheet retreat, and the influence of local and remote sea
Externí odkaz:
https://doaj.org/article/d9ab44c4b7694015886a7d480872c1f9
Autor:
Jessica L. Oster, Elli R. Ronay, Warren D. Sharp, Sebastian F. M. Breitenbach, David J. Furbish
Publikováno v:
Geochemistry, Geophysics, Geosystems. 24
Publikováno v:
Geochimica et Cosmochimica Acta. 311:374-400
The majority of Critical Zone research has emphasized silicate lithologies, which are typified by relatively slow rates of reactivity and incongruent weathering. However, the relatively simpler weathering of carbonate-dominated lithology can result i
Publikováno v:
Geochimica et Cosmochimica Acta. 311:353-373
Karst systems are useful for examining spatial and temporal variability in Critical Zone processes because they provide a window into the subsurface where waters have interacted with vegetation, soils, regolith, and bedrock across a range of length a
Autor:
Tobias Braun, Cameron A. Petrie, Thomas Opel, Cinthya Nava-Fernandez, Sebastian F. M. Breitenbach, Patrick Faulkner, Julie A. Hoggarth, Monica Ionita, Jessica L. Oster, Aurel Perşoiu, Keith M. Prufer, Carole Nehme, Saige Kelmelis, Camilla Francesca Brunello, Saija Saarni, Niklas Hausmann, Annabel Wolf, Ola Kwiecien, Chris Jazwa, Norbert Marwan, Gerd Helle
Publikováno v:
Earth-Science Reviews
Earth-Science Reviews, Elsevier, 2021, pp.103843. ⟨10.1016/j.earscirev.2021.103843⟩
Earth-Science Reviews, Elsevier, 2021, pp.103843. ⟨10.1016/j.earscirev.2021.103843⟩
The role of seasonality is indisputable in climate and ecosystem dynamics. Seasonal temperature and precipitation variability are of vital importance for the availability of food, water, shelter, migration routes, and raw materials. Thus, understandi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::34963708be7977d65bf4f7613ad3096f
https://nrl.northumbria.ac.uk/id/eprint/47617/1/Kwiecien_main-manuscript-revised_black_sml.pdf
https://nrl.northumbria.ac.uk/id/eprint/47617/1/Kwiecien_main-manuscript-revised_black_sml.pdf
The Last Interglacial (LIG) period (~129,000–116,000 years BP) and the mid-Holocene (MH) (~6,000 years BP) are the two most recent intervals with temperatures comparable to low emissions scenarios for the end of the 21st century. During the LIG and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::edea141ee8b5309add993a48513d36ad
https://doi.org/10.5194/egusphere-egu21-6574
https://doi.org/10.5194/egusphere-egu21-6574
Using Micro-CT and petrographic analysis to select optimal U-Th samples from challenging stalagmites
Speleothem deposits can provide a wealth of critical, detailed paleoclimate information from low and mid-latitude terrestrial environments. A key strength of these archives is that they may be dated precisely using U-Th techniques. Yet, depending on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a35243b083022a18d5cd707dcff16c2f
https://doi.org/10.5194/egusphere-egu21-3322
https://doi.org/10.5194/egusphere-egu21-3322