Results 61 to 70 of about 4,997 (224)
The Age and Composition of the Voyager Seamounts: Evidence for a Long‐Lived Marquesas Mantle Source
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 1, January 2026.Abstract We present new observations on the dynamics and locations of deep mantle reservoirs derived from the ages and compositions of Voyager Seamount Chain lava flows. The previously unexplored Voyager Seamount Chain trends NW–SE between the Mid‐Pacific Mountains and the Northwestern Hawaiian Ridge.
Andrea Balbas +8 more
wiley +1 more source
First pterosaur remains from the Cretaceous of Poland [PDF]
, 2013 The first records of pterosaurs from the Cretaceous of Poland are reported, on the basis of fragmentary remains from the marine Upper Albian (Lower Cretaceous) of the Annopol Anticline, central Poland.
Machalski, Marcin, Martill, David M.
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Silurian graptolite biostratigraphy of the Röstånga-1 drill core, Scania:a standard for southern Scandinavia [PDF]
, 2014 The Rostanga-1 core from west-central Scania provides the most complete succession of the Sandbian (Upper Ordovician) through lower Telychian (Silurian, Llandovery) strata of southern Scandinavia. The Hirnantian is identified in the Kallholn Formation by
Ahlberg, Per +3 more
core +2 more sources
International Journal of Microbiology, Volume 2026, Issue 1, 2026.As global industrialization advances and land‐based resources decline, deep‐sea resource development is becoming increasingly vital. The deep sea is rich in minerals such as polymetallic nodules, polymetallic sulfides, and cobalt‐rich crust. However, deep‐sea ecosystems and geochemical cycles can be severely impacted by extensive mineral mining.
Jia Liu +9 more
wiley +1 more source
Eumetazoan fossils in terminal Proterozoic phosphorites? [PDF]
Proceedings of the National Academy of Sciences, 2000 Phosphatic sedimentary rocks preserve a record of early animal life different from and complementary to that provided by Ediacaran fossils in terminal Proterozoic sandstones and shales. Phosphorites of the Doushantuo Formation, South China, contain eggs, egg cases, and stereoblastulae that document animals of unspecified phylogenetic position ...
Xiao, Shuhai +2 more
openaire +3 more sources
Beyond Oxygen Fugacity: A Compositional Metric to Probe Earth's Redox Structure
Geophysical Research Letters, Volume 52, Issue 24, 28 December 2025.Abstract We quantify the redox capacity (dO2) by redox titration—defined as the quantity of oxygen required to fully oxidize a sample—for rocks spanning Earth's upper mantle to surface sediments. The values span three orders of magnitude, with the greatest variability in metamorphic and surface rocks that host both highly reduced (rich in carbon and ...
Matthieu Emmanuel Galvez +2 more
wiley +1 more source
Technology of obtaining enriched phosphate materials with removal of heavy metals in wasteless process [PDF]
, 2015 У статті запропоновано підхід до безвідходного (маловідходного) процесу виробництва мінеральних добрив. Представлені результати проведених досліджень з утилізації тонкодисперсного високогомогенізованого суспендованого відходу, що утворився при ...
Andrienko, N. I. +2 more
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Development, Efficiency, and Impact Factors of Phosphorus Nanofertilizers in Agriculture: A Review
Journal of Plant Nutrition and Soil Science, Volume 188, Issue 6, Page 894-912, December 2025.Overview of the potential benefits of phosphorus nanofertilizers in agriculture. ABSTRACT Modern intensive agriculture to feed the growing population of the world has been practiced in view of the limitations of arable land and water resources. However, overapplication of chemical fertilizers may pose severe environmental impacts, including soil ...
Houssameddine Mansouri +6 more
wiley +1 more source
, 2008 Im Pazifischen Ozean erstreckt sich westlich von Peru und Ecuador ein riesiges Gebiet, in dem lebenswichtiger Sauerstoff Mangelware ist. Dieses Gebiet ist Ziel der Expedition „M77“, zu der das deutsche Forschungsschiff METEOR am 22. Oktober 2008 ausläuft.
Pfannkuche, Olaf
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Journal of Sustainable Agriculture and Environment, Volume 4, Issue 4, December 2025.ABSTRACT This study evaluated the effects of alternative phosphorus (P) sources and soil pH amendments on P fractions and soil chemical properties in two contrasting Brazilian tropical soils. A greenhouse experiment was conducted using a sandy Arenosol and a clayey Ferralsol treated with triple superphosphate (TSP), reactive phosphate (RP), or ...
Lucas Jónatan Rodrigues da Silva +5 more
wiley +1 more source