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Akademický článek

High-precision dual-inlet IRMS measurements of the stable isotopes of CO2 and the N2O / CO2 ratio from polar ice core samples

Autor: T. K. Bauska, E. J. Brook, A. C. Mix, A. Ross

Publikováno v: Atmospheric Measurement Techniques, Vol 7, Pp 3825-3837 (2014)

An important constraint on mechanisms of past carbon cycle variability is provided by the stable isotopic composition of carbon in atmospheric carbon dioxide (δ13C-CO2) trapped in polar ice cores, but obtaining very precise measurements has prove

Externí odkaz: https://doaj.org/article/4eadbf24b5e24c59b1f4067457212d0f

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Akademický článek

Biology and air–sea gas exchange controls on the distribution of carbon isotope ratios (δ13C) in the ocean

Autor: A. Schmittner, N. Gruber, A. C. Mix, R. M. Key, A. Tagliabue, T. K. Westberry

Publikováno v: Biogeosciences, Vol 10, Iss 9, Pp 5793-5816 (2013)

Analysis of observations and sensitivity experiments with a new three-dimensional global model of stable carbon isotope cycling elucidate processes that control the distribution of δ13C of dissolved inorganic carbon (DIC) in the contemporary and pre

Externí odkaz: https://doaj.org/article/dc778136a0f441bc9daf518a601f2242

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Akademický článek

Sediment controls dynamic behavior of a Cordilleran Ice Stream at the Last Glacial Maximum

Autor: Ellen A. Cowan, Sarah D. Zellers, Juliane Müller, Maureen H. Walczak, Lindsay L. Worthington, Beth E. Caissie, Wesley A. Clary, John M. Jaeger, Sean P. S. Gulick, Jacob W. Pratt, Alan C. Mix, Stewart J. Fallon

Publikováno v: Nature Communications, Vol 11, Iss 1, Pp 1-9 (2020)

Tidewater glaciers in fjords can advance/retreat independent of climate due to stabilization by sediments at their termini. We show that an Alaskan paleo-ice stream behaved similarly on an open shelf, suggesting that increased sediment flux may delay

Externí odkaz: https://doaj.org/article/40ccd9df2c0942419671f27be4935117

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Ice and ocean constraints on early human migrations into North America along the Pacific coast

Autor: Summer K. Praetorius, Jay R. Alder, Alan Condron, Alan C. Mix, Maureen H. Walczak, Beth E. Caissie, Jon M. Erlandson

Publikováno v: Proceedings of the National Academy of Sciences (0027-8424) (Proceedings of the National Academy of Sciences), 2023-02-14, Vol. 120, N. 7, P. e2208738120 (11p.)

Founding populations of the first Americans likely occupied parts of Beringia during the Last Glacial Maximum (LGM). The timing, pathways, and modes of their southward transit remain unknown, but blockage of the interior route by North American ice s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c019a29999910c1684ad4fab91fbc649
https://archimer.ifremer.fr/doc/00820/93170/

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Volcanic trigger of ocean deoxygenation during Cordilleran ice sheet retreat

Autor: Jianghui, Du, Alan C, Mix, Brian A, Haley, Christina L, Belanger, Sharon

Publikováno v: Nature. 611(7934)

North Pacific deoxygenation events during the last deglaciation were sustained over millennia by high export productivity, but the triggering mechanisms and their links to deglacial warming remain uncertain

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::923d4f0541d063eeb81fdecf2dee7f9d
https://pubmed.ncbi.nlm.nih.gov/36323806

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Reactive-transport modeling of neodymium and its radiogenic isotope in deep-sea sediments: The roles of authigenesis, marine silicate weathering and reverse weathering

Autor: Jianghui Du, Brian A. Haley, Alan C. Mix, April N. Abbott, James McManus, Derek Vance

Publikováno v: Earth and Planetary Science Letters, 596

Dissolved Rare Earth Elements (REE) and radiogenic neodymium (Nd) isotope composition (εNd) of seawater are widely used geochemical tools in studying marine processes, but their modern ocean budgets are poorly understood. Recent discoveries of large

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab07c31709fd37add5e285e0c0f22068

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Glacial isostatic adjustment directed incision of the Channeled Scabland by Ice Age megafloods

Autor: Tamara Pico, Scott R. David, Isaac J. Larsen, Alan C. Mix, Karin Lehnigk, Michael P. Lamb

Publikováno v: Proceedings of the National Academy of Sciences of the United States of America, vol 119, iss 8

During the last deglaciation, dozens of glacial outburst floods—among the largest known floods on Earth—scoured the Channeled Scabland landscape of eastern Washington. Over this same period, deformation of the Earth’s crust in response to the g

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d8e6c7d591d68a49b43cc31fbc2b4bf2
https://pubmed.ncbi.nlm.nih.gov/35165189

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The Nazca Drift System – palaeoceanographic significance of a giant sleeping on the SE Pacific Ocean floor

Autor: Liviu Giosan, Alan C. Mix, M. Vega, Patrice Baby, Gérôme Calvès, Peter D. Clift, Stéphane Brusset

Publikováno v: Geological Magazine
Geological Magazine, Cambridge University Press (CUP), 2021, pp.1-15. ⟨10.1017/S0016756821000960⟩
Geological Magazine, 2021, pp.1-15. ⟨10.1017/S0016756821000960⟩

The evolution and resulting morphology of a contourite drift system in the SE Pacific oceanic basin is investigated in detail using seismic imaging and an age-calibrated borehole section. The Nazca Drift System covers an area of 204 500 km2 and stand

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e101b3acd6efb169d15a8fd222918fc
https://hal.archives-ouvertes.fr/hal-03418522

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