Results 71 to 80 of about 4,093 (226)

Atmospheric Dust Transport to High‐Elevation Dronning Maud Land, Antarctica, Modulated by Cyclonic Circulation, the Pacific Decadal Oscillation, and Source Emissions

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 11, 16 June 2026.
Abstract The dependence of aeolian dust transport on atmospheric circulation patterns allows dust preserved in Antarctic ice cores to serve as a proxy for past circulation variability. Here, we investigate dust transport to high‐elevation Dronning Maud Land (DML) in Antarctica through analysis of the 1300‐year‐old ISOL‐ICE ice core dust record together
K. C. Henson, V. H. L. Winton, K. R. Clem, R. Mulvaney, M. M. Frey   +4 more
wiley   +1 more source

Shelf-Ocean material exchange influencing the Atlantic chemical composition off NW Iberian margin since the last glaciation

, 2010
Rivers are the main conduit of sediment to the shelf. The basin geology, the drainage area and the discharge rate are the major factors that determine their sediment load (Milliman and Syvistski, 1992).
Ferreira da Silva, E., Rocha, F., Santos, J. F., Dias, J. A., Ribeiro, S., Silva, T., Martins, V.   +6 more
core  

Origin of the mysterious Yin-Shang bronzes in China indicated by lead isotopes

, 2016
Fine Yin-Shang bronzes containing lead with puzzlingly highly radiogenic isotopic compositions appeared suddenly in the alluvial plain of the Yellow River around 1400 BC.
Zartman, Robert E., Jiang, Yu-hang, Zhang, Zhao-feng, Sun, Wei-dong, Zhang, Li-peng, Li, Cong-ying, Guo, Jia   +6 more
core   +1 more source

Geochemical Constraints on Spatial‐Temporal Distribution and Origin of Anomalous Mantle in the Western Pacific Basins

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 6, June 2026.
Abstract Seafloor basalt samples recovered from the Caroline Basin (CB), the Parece Vela Basin (PVB), and the Western Philippine Sea Plate (WPSP) are analyzed for whole‐rock major and trace elements (including H2O), Sr‐Nd‐Pb‐Hf isotopes and 40Ar‐39Ar age‐dating.
Guo‐Liang Zhang, Han‐Tao Chi, Ji Zhang, Feng Xu   +3 more
wiley   +1 more source

Geochemical and Isotopic Constraints on Long‐Lived Source Enrichment and Mantle Evolution in Paleoproterozoic Cratonic Lamprophyres

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 6, June 2026.
Abstract The cratonic lithospheric mantle records complex metasomatic processes and is frequently tapped by alkaline magmatism, offering a unique opportunity to trace the progressive evolution of the mantle. In the present contribution, we investigate a newly identified calc‐alkaline lamprophyre field from the Neoarchean Jonnagiri Schist Belt, Eastern ...
Sourav Naskar, Rohit Pandey, Nils Björn Baumann, N. V. Chalapathi Rao, George Mathew, J. Amal Dev, J. K. Tomson   +6 more
wiley   +1 more source

Geothermal field of the Grodno region of the Republic of Belarus

Журнал Белорусского государственного университета: География, геология, 2023
The geothermal field of the platform cover within the Grodno region is considered. The cover rests on a crystalline basement of Precambrian rocks. Temperature distribution maps for depths of 100; 200 and 300 m below ground level were compiled based on ...
Владимир Игнатьевич Зуй
doaj  

Water mass transformation in the Barents Sea inferred from radiogenic neodymium isotopes, rare earth elements and stable oxygen isotopes [PDF]

, 2019
Highlights • First comprehensive seawater Nd isotope and REE data set for the Barents Sea • Water masses traced with Nd isotopes, salinity and stable oxygen isotopes • No release of particulate REEs to the dissolved load except for cerium •
Bauch, Dorothea, Laukert, Georgi, Petrova, Mariia V., Böning, Philipp, Makhotin, Mikhail, Hathorne, Ed C., Frank, Martin, Kassens, Heidemarie   +7 more
core   +1 more source

Middle Cretaceous Andean‐Type Arc Evolution in the Sanandaj–Sirjan Zone (Shalair Valley), Iraq: New Geochronological and Geochemical Constraints

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 6, June 2026.
Abstract The middle Cretaceous granitoid plutons of the Shalair Valley, situated in northeastern Iraq, constitute a principal magmatic component of the Sanandaj–Sirjan Zone within the northwestern segment of the Zagros Orogenic Belt. Among these plutons, the equigranular Aulan body (AG) and the porphyritic Laladar body (LG) were crystallized at 111.0 ± 
Imad Kadhim Abdulzahra, Yoshihiro Asahara, Yousif Mohammad, Ayten Hadi   +3 more
wiley   +1 more source

Volcano- and climate-driven changes in atmospheric dust sources and fluxes since the Late Glacial in Central Europe [PDF]

, 2012
Atmospheric dusts are an important part of the global climate system, and play an important role in the marine and terrestrial biogeochemical cycles of major and trace nutrient elements.
LE ROUX Gael, Debaille, Vinciane, KRACHLER Michael, Stille, Peter, van Leeuwen, Jacqueline F. N., Van der Knaap, Willem O., Krachler, Michael, Shotyk, William, DEBAILLE Vinciane, Stille, P., VAN DER KNAAP W. O., Shotyk, W., MATTIELLI Nadine, Le Roux, G., De Vleeschouwer, François, VAN LEEUVEN Jacqueline F. N., Mattielli, Nadine, Krachler, Mickael, Le Roux, Gaël, Van der Knaap, W.O., van Leeuwen, Jacqueline, De Vleeschouwer, F., FAGEL Nathalie, Fagel, Nathalie, Debaille, V., Fagel, N., Krachler, M., van der Knaap, Willem Oscar, DE VLEESCHOUWER Francois, STILLE Peter, SHOTYK W., Van Leeuwen, Jacqueline F.N., Mattielli, N., van der Knaap, Pieter   +33 more
core   +1 more source

Protracted High‐Grade Metamorphism and Slow Cooling in the Adirondacks Recalibrate Neoproterozoic Global Paleogeography

Tectonics, Volume 45, Issue 6, June 2026.
Abstract The assembly and breakup of the supercontinent Rodinia set the stage for Earth system evolution through the Neoproterozoic Era. Laurentia, the central craton in Rodinia, lacks well‐dated paleomagnetic poles between ca. 990 Ma and 780 Ma. In this study, we develop new U‐Pb petrochronology and thermochronology data sets from zircon, garnet ...
Yiming Zhang, Eben Blake Hodgin, Mark D. Schmitz, Darin M. Schwartz, Michael T. Mohr, James L. Crowley, Nicholas L. Swanson‐Hysell   +6 more
wiley   +1 more source