Results 81 to 90 of about 837,373 (246)

Palaeobiology of Early Carboniferous lacustrine biota of the Waaipoort Formation (Witteberg Group), South Africa [PDF]

, 1999
The Early Carboniferous (Visean) Waaipoort Formation (Cape Supergroup, Witteberg Group) is a heterolithic sandstone dominated formation containing apatite-rich and calcite-rich fossiliferous nodules.
Evans, F J
core  

Small fish, large variation: Morphological diversity of Weberian apparatus in Noturus catfishes and ecological implications

The Anatomical Record, Volume 308, Issue 12, Page 3069-3081, December 2025.
Abstract The Weberian apparatus is a hearing specialization unique to the otophysan fishes, and an unexpected degree of morphological variation exists in species of the Noturus catfishes. Our aim in this study is to investigate relationships between morphological variations and ecology that may drive this variation.
J. C. Hoeflich, Juan Liu
wiley   +1 more source

Liebig Review: Legume–Rhizobium Symbiosis Under Selenium Fertilization: A Unique Dual Function in the Plant–Soil System

Journal of Plant Nutrition and Soil Science, Volume 188, Issue 6, Page 861-872, December 2025.
ABSTRACT Background Selenium (Se) plays a vital role as a beneficial element in promoting the production of leguminous plants. It influences legume quality by improving crop nutritive value and contributing to human and animal health. Literature Review This review is timely, as there are gaps in understanding Se–rhizobia interactions in legumes, which ...
Muna Ali Abdalla, Saad Sulieman, Karl Hermann Mühling   +2 more
wiley   +1 more source

Current understanding of lymphoproliferative disease virus in wild turkeys

Wildlife Society Bulletin, Volume 49, Issue S1, December 2025.
Lymphoproliferative disease virus (LPDV) is a retrovirus that can cause a spectrum of disease in wild turkeys (Meleagris gallopavo), from subclinical infection to lymphoid tumors. We reviewed the literature to summarize our current understanding of LPDV, including disease presentation, surveillance, impact on fitness, spatiotemporal distribution, and ...
Chloe C. Goodwin, Andrew B. Allison, Mark G. Ruder, Justin D. Brown, Michael J. Chamberlain, Melanie R. Kunkel, Kevin D. Niedringhaus, Alisia A. W. Weyna, Charlie S. Bahnson, Elizabeth L. Elsmo, M. Kevin Keel, Heather Fenton, Kayla G. Adcock, Rebecca L. Poulson, Nicole M. Nemeth   +14 more
wiley   +1 more source

Seasonally Dependent Formation of Sulfates in the Basque Lakes, British Columbia, as Analogous to “Cold and Wet” and “Warm and Wet” Mars

Earth and Space Science, Volume 12, Issue 12, December 2025.
Abstract Saline lakes are expected to have been extensively present on ancient Mars, particularly as the planet dried or cooled. Such lakes likely deposited sulfate salts, as these salts have been widely identified from orbital and in situ Mars data. However, the relationship between martian sulfates and the environmental conditions that formed them ...
Emmy B. Hughes, Jacob J. Buffo, Frances Rivera‐Hernández, James J. Wray, Andrew Fleming, Alexandra Pontefract, Kennda Lynch   +6 more
wiley   +1 more source

Reevaluating the Global Oceanic Copper Isotope Budget: The Critical Role of Deep‐Sea Pelagic Sediments

Global Biogeochemical Cycles, Volume 39, Issue 12, December 2025.
Abstract Understanding the oceanic Copper (Cu) budget is essential for tracing nutrient pathways, interpreting ancient sediment records, and assessing global environmental changes. However, the global oceanic Cu cycle remains imbalanced, largely due to insufficient studies on the flux and isotopic composition of authigenic Cu in oxic pelagic sediments.
Yangtao Zhu, Yinan Deng, Ganglan Zhang, Gaowen He, Jun Cao, Pengcong Wang, Mingyu Zhao   +6 more
wiley   +1 more source

Palagonitization of Volcanic Rocks in Polar Climates: The Case of Deception Island (Antarctica)

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 12, December 2025.
Abstract A detailed study of palagonitization in rocks from Deception Island—one of Antarctica's most active volcanoes—has been performed to advance our understanding of this alteration process. A detailed petrographic (optical and SEM), mineralogical (XRD), and mineral and glass spot geochemistry (EDS and EMP) characterization has been conducted on ...
Oriol Vilanova‐Pagès, Guillem Gisbert, Helena Albert, Adelina Geyer, Meritxell Aulinas, Raquel Arasanz, Jordi Ibañez‐Insa, Antonio Polo‐Sánchez, Antonio Álvarez‐Valero, Olga Prieto‐Ballesteros, Santiago Giralt   +10 more
wiley   +1 more source

Abiotic Siliceous Botryoids on Iron Oxyhydroxide Filaments From Hydrothermal Vents in the Southwest Indian Ocean

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 12, December 2025.
Abstract Fe‐oxidizing microorganisms in deep‐sea hydrothermal vent environments are often used as analogs for primordial life on Earth. In fact, Earth's oldest purported microfossils are preserved as hematite filaments in a jasper rock dated between 4,160 and 4,280 million years and are thought to have originated in a seafloor hydrothermal environment.
Dominic Papineau, Kaiwen Ta, Yuzhou Ge, Yuangao Qu, Mengran Du, Jiwei Li, Shuang Liu, Dongmei Wang, Xiaotong Peng   +8 more
wiley   +1 more source

Impact of the Mining Process on the Near-Seabed Environment of a Polymetallic Nodule Area: A Field Simulation Experiment in a Western Pacific Area. [PDF]

Sensors (Basel), 2023
Li B, Jia Y, Fan Z, Li K, Shi X.
europepmc   +1 more source

Diagenetic, Nonevaporative Origin for Calcium Sulfate Salts at Gale Crater

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 12, December 2025.
Abstract Sulfate salts are deposited most commonly as evaporites on Earth; however, this is not their only origin. Pyrite oxidation during subsurface weathering is another common process on Earth that also produces a suite of sulfate salts—including the acidic phases jarosite and alunite—in sedimentary deposits.
Hemani Kalucha, Eliza Carter, John P. Grotzinger, Joel A. Hurowitz, Woodward W. Fischer   +4 more
wiley   +1 more source