Results 91 to 100 of about 824,380 (294)

Middle Eocene greenhouse warming facilitated by diminished weathering feedback

Nature Communications, 2018
The Middle Eocene Climatic Optimum (MECO) represents a ~500-kyr period of global warming ~40 million years ago and is associated with a rise in atmospheric CO2 concentrations, but the cause of this CO2 rise remains enigmatic.
Robin van der Ploeg, David Selby, Marlow Julius Cramwinckel, Yang Li, Steven M. Bohaty, Jack J. Middelburg, Appy Sluijs   +6 more
doaj   +1 more source

The Role of Sulfuric Acid in Continental Weathering: Insights From Dissolved Major Ions and Inorganic Carbon Isotopes of the Teesta River, Lower Brahmaputra System

Geochemistry, Geophysics, Geosystems, 2021
Chemical weathering in the Himalayan river basins plays a key role in the global carbon cycle that controls the climate. In this contribution, the spatial distribution of dissolved major ions and (inorganic) carbon isotopic compositions of the Teesta ...
Satyabrata Das, Gyana Ranjan Tripathy, Santosh K. Rai, Mohd Danish, Divya Thakur, Som Dutt, Shushanta Sarangi   +6 more
doaj   +1 more source

CHEMICAL WEATHERING YIELDS IN RELATION TO LAND USE IN THE CUYAHOGA AND MAUMEE WATERSHEDS [PDF]

, 2020
Data obtained from the National Center for Water Quality Research database at Heidelberg University are used to look at two steams, the Maumee River and the Cuyahoga River.
Lucas, Elijah
core  

Tracing silicate weathering processes in the permafrost-dominated Lena River watershed using lithium isotopes

Geochimica et Cosmochimica Acta, 2019
Increasing global temperatures are causing widespread changes in the Arctic, including permafrost thawing and altered freshwater inputs and trace metal and carbon fluxes into the ocean and atmosphere.
M. Murphy, D. Porcelli, Philip A. E. Pogge von Strandmann, C. Hirst, Liselott Kutscher, Joachim A. R. Katchinoff, C. Mörth, T. Maximov, P. Andersson   +8 more
semanticscholar   +1 more source

Boron availability and fertilizer response of maize in soils from sub‐Saharan Africa

Journal of Plant Nutrition and Soil Science, EarlyView.
Abstract Background and aims Low boron (B) availability is associated with strongly weathered, coarse‐textured, and low organic matter soils, widespread in sub‐Saharan Africa (SSA). It is unknown to what extent B fertilization can increase maize yields in SSA.
Mirjam S. Breure, Elise Van Eynde, Samuel Njoroge, Regis Chikowo, Rob N. J. Comans, Ellis Hoffland   +5 more
wiley   +1 more source

Heterogeneity in ice sheets- vs. monsoon rainfall-induced silicate weathering from high to low latitudes

npj Climate and Atmospheric Science
One of the most challenging problems in paleoclimate research is how orbital cyclicities forced Earth’s climate variations during the late Quaternary.
Xuguang Feng, Jianjun Zou, Xuefa Shi, Zhengyao Lu, Hai Cheng, Yi Zhong, Zhengquan Yao, Zhaojie Yu, Hanying Li, Zhi Dong, Debo Zhao, Han Feng, Jiang Dong, Kunshan Wang   +13 more
doaj   +1 more source

Atmospheric Evolution

, 2017
Earth's atmosphere has evolved as volatile species cycle between the atmosphere, ocean, biomass and the solid Earth. The geochemical, biological and astrophysical processes that control atmospheric evolution are reviewed from an "Earth Systems ...
AA Pavlov, AE Isley, AJ Ridgwell, AJ Watson, AJ Watson, AJ West, AL Roberson, AP Ingersoll, B Byrne, B Byrne, B Marty, B Marty, B Mills, BW Johnson, BW Johnson, C Dessert, C Goldblatt, C Goldblatt, C Goldblatt, C Goldblatt, C Goldblatt, C Sagan, C Sagan, C Sagan, CL Blattler, DAD Evans, DC Catling, DC Catling, DE Ibarra, DL Royer, DM Hunten, DR Hitchcock, DS Abbot, DV Kent, EE Stüeken, EG Nisbet, EG Nisbet, ET Wolf, G Feulner, GC Simpson, GE Bebout, HC Urey, HD Holland, J Farquhar, J Hartmann, J Leconte, JCG Walker, JCG Walker, JCG Walker, JD Haqq-Misra, JE Lovelock, JE Lovelock, JE Lovelock, JF Kasting, K Hamano, K Wallmann, KJ Zahnle, KJ Zahnle, KJ Zahnle, KR Anderson, L Li, L Li, LM Och, LR Kump, M Komabayashi, M Popp, M Voyer Le, ND Sheldon, R Barnes, R Buick, R Rye, R Wordsworth, RA Berner, RA Berner, RA Berner, RD Wordsworth, RE Zeebe, RT Pierrehumbert, S Chapman, S Nakajima, T Matsui, T Owen, TM Donahue, TM Lenton, TM Lenton, TW Lyons, VI Vernadsky, VI Vernadsky, WR Kuhn, Y Goddéris   +89 more
core   +1 more source

Influence of palaeoweathering on trace metal concentrations and environmental proxies in black shales [PDF]

, 2017
The mineralogical and chemical compositions of Lower Carboniferous (Tournaisian) marine black shale from the Kowala quarry, the Holy Cross Mountains, Poland, were investigated.
Agnieszka Pisarzowska, Algeo, Algeo, Algeo, Allan, Altabet, Altabet, Anbar, Anthony S. Cohen, Arkadiusz Derkowski, Arnold, Arthur, Averbuch, Baker, Barling, Bauersachs, Behar, Berkowski, Berner, Bolton, Bond, Brantley, Brumsack, Chadima, Chen, Clayton, Clayton, Dalai, Derkowski, Dias, Dickson, Duan, Erickson, Faure, Franke, Freudenthal, Frimmel, Georgiev, German, Goldberg, Gong, Grosjean, Hannigan, Hatch, Helz, Huerta-Diaz, Immenhauser, Jaffe, Jan Środoń, Joachimski, Jones, Keller, Kolowith, Kump, Landais, Lehmann, Leszek Marynowski, Lev, Leythaeuser, Liermann, Littke, Liu, Lo, Lyons, Ma, Macko, Macko, Marynowski, Marynowski, Marynowski, Marynowski, Marynowski, Marynowski, McArthur, McCarty, Michał Rakociński, Morford, Mort, Möbius, Nägler, Obreht, Pearce, Pearce, Perkins, Petsch, Peucker-Ehrenbrink, Pollack, Pope, Popp, Popp, Poulson, Pujol, Rachidi, Racka, Racki, Racki, Rafał Szaniawski, Reitz, Rimmer, Rimmer, Riquier, Rooney, Ross, Rudnick, Sachs, Sackett, Saino, Schmitz, Schoepfer, Siebert, Siebert, Slomp, Szaniawski, Szaniawski, Szulczewski, Tamamura, Torsvik, Tribovillard, Tribovillard, Tulipani, Tuttle, Wignall, Wildman, Williams, Yu, Zwing, Śliwiński, Środoń, Środoń   +128 more
core   +1 more source

Deglaciation of the Burren glacio‐karst, western Ireland, during Termination 1: Implications for North Atlantic climate and karstification

Journal of Quaternary Science, EarlyView.
Abstract The Burren uplands in western Ireland form one of the most extensive and best‐preserved examples of glacio‐karst in Europe. Subsumed by the Irish ice sheet during the Late Pleistocene, granite erratic boulders and in situ silica veins in the limestone bedrock provide a rare opportunity to reconstruct the timing and rate of deglaciation ...
Gordon Bromley, Colin Bunce, Brenda Hall, Aaron Putnam, Frank McDermott   +4 more
wiley   +1 more source

Rainfall amplified sea-level control on silicate weathering in the Indo-Pacific Convergence Zone during Quaternary glacials

Communications Earth & Environment
The Indo-Pacific Convergence Zone is a key carbon sink via silicate weathering, yet its glacial-interglacial carbon dioxide consumption remains unclear.
Yifei Yang, Zhaokai Xu, Debo Zhao, Shiming Wan   +3 more
doaj   +1 more source