Depth‐Dependence Changes in Soil Stoichiometry in China's Croplands Over the Past Four Decades
Advanced Science, EarlyView.This study reveals depth‐dependent changes in soil C:N:P ratios across Chinese croplands over four decades. Changes in stoichiometry vary markedly between topsoil and subsoil, with initial soil C:N:P ratios playing a key role in determining their trajectories.
Xiaodong Sun +8 more
wiley +1 more source
Hydrogen adsorption characteristics of coal rock and its geological significance
Meitan xuebaoHydrogen, as an important clean energy source that can be used as an alternative to fossil energy, can reduce global greenhouse gas emissions. However, the large-scale hydrogen industry requires large reservoirs to store hydrogen, and the use of ...
Shuangbiao HAN +8 more
doaj +1 more source
Petrographic Evidences for the Origin of Iron in IOCG IronDeposits of Kuh-E-Faryadoon and Kouli-Kosh, Southeast Central Iran [PDF]
Journal of Sciences, Islamic Republic of Iran, 2013 Kuh-E-Faryadoon and Kouli Kosh iron deposits are hosted by regional metamorphic rocks of Sanandaj-Sirjan zone around Deh-Bid area. Plugs and domes of acid rocks protrude these metamorphic rocks.
M. Sabzehei, H. Mirzaei, M Mostafavi
doaj
Interpretation of zircon coronae textures from metapelitic granulites of the Ivrea–Verbano Zone, northern Italy: two-stage decomposition of Fe–Ti oxides [PDF]
Solid Earth, 2017 In this study, we report the occurrence of zircon coronae textures in metapelitic granulites of the Ivrea–Verbano Zone. Unusual zircon textures are spatially associated with Fe–Ti oxides and occur as (1) vermicular-shaped aggregates 50–200 µm long and
E. Kovaleva +3 more
doaj +1 more source
Geology of Byobu Rock and Gobanme Rock, Prince Olav Coast, East Antarctica [PDF]
, 2006 We report here the geology of Byobu Rock and Gobanme Rock outcrops hitherto unmapped in the Prince Olav Coast, East Antarctica. Both these outcrops expose high-grade metamorphic and igneous rocks.
M. Satish-Kumar +3 more
core +1 more source
U-Pb SHRIMP zircon dating of Grenvillian metamorphism in Western Sierras Pampeanas (Argentina) : correlation with the Arequipa-Antofalla craton and constraints on the extent of the Precordillera Terrane [PDF]
, 2006 The Sierras Pampeanas of Argentina, the largest outcrop of pre-Andean crystalline basement in southern South America, resulted from plate interactions along the proto-Andean margin of Gondwana, from as early as Mesoproterozoic to Late Paleozoic times (e ...
C. Mark Fanning +31 more
core +4 more sources
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT In this study, marble waste (MARWAS) beneficiation was done using thermal, physical, and chemical means. The MARWAS samples collected from dumping yards of Kishangarh and Revdar districts of Rajasthan (India) and Ambaji district of Gujarat (India) were characterized by chemical composition analysis, scanning electron microscopy with energy ...
Vinod Kumar Dhakad, Susanta Kumar Jana
wiley +1 more source
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT Coal is a natural macromolecular substance composed of complex organic molecules and a small amount of minerals. Its chemical composition and microstructure are highly complex and variable, and no unified definition exists. This inherent structural complexity underscores the theoretical significance of constructing accurate macromolecular ...
Chao Zhou +5 more
wiley +1 more source
Evidence from Rb–Sr mineral ages for multiple orogenic events in the Caledonides of Shetland, Scotland [PDF]
, 2015 Shetland occupies a unique central location within the North Atlantic Caledonides. Thirty-three new high-precision Rb–Sr mineral ages indicate a polyorogenic history.
Bird, A. F. +3 more
core +3 more sources
Mechanochromic Organic Materials: Molecular Mechanisms and Multidimensional Applications
Advanced Physics Research, EarlyView.Mechanochromic (MC) organic materials change color in response to mechanical force. This review elucidates the molecular mechanisms (e.g., aggregation‐induced emission, AIE) and explores their multidimensional applications in sensors, anti‐counterfeiting, biomedical devices, and structural health monitoring, providing a roadmap for future smart ...
Xiaozhe Yin +5 more
wiley +1 more source