Results 191 to 200 of about 128,691 (283)

Intra‐Plant Nitrogen Isotope Fractionation in Maize

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background and aim The natural abundance of nitrogen isotopes (δ15N) provides a powerful integrative tracer of nitrogen uptake and assimilation in plants, yet the internal partitioning of δ15N among plant tissues remains insufficiently understood.
Priscillia Semaoune, Joëlle Templier, Sylvie Derenne, R. Dave Evans, Mathieu Sebilo   +4 more
wiley   +1 more source

Tool-stone selection in the African Middle stone age at Sibhudu cave. [PDF]

PLoS One
Schmidt P, Nickel KG.
europepmc   +1 more source

Late Holocene environmental history of Dojran, Macedonia: Investigating the interplay of imperial dynamics and climatic change

Journal of Quaternary Science, EarlyView.
ABSTRACT This study presents a high‐resolution, multi‐proxy reconstruction of environmental and land‐use change from Lake Dojran over historical times (last 2500 years), combining pollen, biomarkers, radiocarbon dating, Ottoman taxation records and other historical data.
Alessia Masi, Lucrezia Masci, Georgios C. Liakopoulos, Monica Bini, Alexander Francke, Ilaria Isola, Carlo Ricotta, Laura Sadori, Alexander Sarantis, Sławomir Sprawski, Jakub Sypiański, Irene Tunno, Cristiano Vignola, Bernd Wagner, Giovanni Zanchetta, Adam Izdebski   +15 more
wiley   +1 more source

Author Correction: Early Triassic super-greenhouse climate driven by vegetation collapse. [PDF]

Nat Commun
Xu Z, Yu J, Yin H, Merdith AS, Hilton J, Allen BJ, Gurung K, Wignall PB, Dunhill AM, Shen J, Schwartzman D, Goddéris Y, Donnadieu Y, Wang Y, Zhang Y, Poulton SW, Mills BJW.   +16 more
europepmc   +1 more source

Quantifying user variability in the traditional X‐ray ice‐rafted‐debris counting technique

Journal of Quaternary Science, EarlyView.
ABSTRACT The flux of icebergs is most commonly constrained in the palaeo‐record by manually counting gravel clasts in sediment core X‐ray images—a trusted method in Quaternary science and palaeoceanography for nearly 40 years. In this study, we explore the reproducibility (user consistency and between‐user variability) of the traditional clast‐counting
Neil McDonald, Tom Bradwell, S. Louise Callard, Jaime L. Toney   +3 more
wiley   +1 more source

Geochemical characteristics and sources of potassium and bromine in Salt-Lake Brines of the Junggar Basin, China. [PDF]

Sci Rep
Zhou C, Yang Z, Chen X, Liu C, Cheng X.
europepmc   +1 more source

Geochronological reconstruction of the Lateglacial deglaciation in the Arve Valley (Northern French Alps)

Journal of Quaternary Science, EarlyView.
ABSTRACT The timing and spatial patterns of glaciers retreat in the Northern French Alps during the Lateglacial (19.0–11.7 ka) remain debated, reflecting discrepancies among available chronological data sets. The complex interactions between major glaciers, such as the Rhône and Arve glaciers to the north and the Isère glacier to the south, represent a
Quentin Portal, Christian Crouzet, Jean‐François Buoncristiani, Julien Carcaillet   +3 more
wiley   +1 more source

Author Correction: Marine phosphorus and atmospheric oxygen were coupled during the Great Oxidation Event. [PDF]

Nat Commun
Dodd MS, Li C, Gu H, Zhang Z, Hou M, Sadekov A, Rosière CA, Pirajno F, Alcott L, Ossa FO, Mills BJW, Bekker A.   +11 more
europepmc   +1 more source

Decoupling glacier retreat and surface stabilization on the Snežnik Plateau (Slovenia), insights from in situ cosmogenic 36Cl exposure and depth‐profile ages

Journal of Quaternary Science, EarlyView.
ABSTRACT Glaciokarst landscapes pose distinctive challenges for cosmogenic dating because meltwater and runoff can be rapidly rerouted into ponors and conduit networks, weakening glacier–river coupling and promoting local sediment storage. We reconstruct glacier retreat and postglacial stabilization on the Snežnik Plateau (SW Slovenia) using in situ ...
Onur Altınay, Mehmet Akif Sarıkaya, Uroš Stepišnik, Manja Žebre, Cengiz Yıldırım, Attila Çiner, Klaus M. Wilcken   +6 more
wiley   +1 more source

Pressure-dependent adaptation strategies implied by the dissimilatory iron reducer <i>Orenia metallireducens</i> Z6. [PDF]

mLife
Li S, Pei J, Fang J, Liu R, Wei Y, Huang X, Yang G, Liu M, Lin Q, Sanford RR, Shao H, Jiang Y, Hu Y, Jiang Z, Feng Q, He Y, Zhang C, Fan Y, Dong Y, Shi L.   +19 more
europepmc   +1 more source