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An unusual compound object in Yamato 793408 (H3.2-an): The missing link between compound chondrules and macrochondrules?
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- Meteoritics & Planetary Science
, 2020)
We found a large (~2 mm) compound object in the primitive Yamato 793408 (H3.2-an) chondrite. It consists mostly of microcrystalline material, similar to chondrule mesostasis, that hosts an intact barred olivine (BO) ...
Could oxalate-extractable phosphorus replace phosphorus fractionation schemes in soil phosphorus prospections?—A case study in the prehistoric Milseburg hillfort (Germany)
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- Geoarchaeology
, 2019)
A geoarchaeological soil phosphorus (P) prospection is used to identify a gate within the prehistoric rampart of the Milseburg hillfort (Hesse, Germany). This study compares the application of a P fractionation scheme and ...
The presolar grain inventory of fine-grained chondrule rims in the Mighei-type (CM) chondrites
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- Meteoritics & Planetary Science
, 2019)
We investigated the inventory of presolar silicate, oxide, and silicon carbide (SiC) grains of fine-grained chondrule rims in six Mighei-type (CM) carbonaceous chondrites (Banten, Jbilet Winselwan, Maribo, Murchison, Murray ...
Formation of Small Craters in the Lunar Regolith: How Do They Influence the Preservation of Ancient Melt at the Surface?
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- Journal of Geophysical Research: Planets
, 2021-05-11)
The impact melt that records the formation time of basins is essential for the understanding of the lunar bombardment history. To better understand melt distribution on the Moon, this study investigates mixing of melt by ...
Constraining Global Marine Iron Sources and Ligand‐Mediated Scavenging Fluxes With GEOTRACES Dissolved Iron Measurements in an Ocean Biogeochemical Model
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- Global Biogeochemical Cycles
, 2021-08-09)
Iron is a key micronutrient controlling phytoplankton growth in vast regions of the global ocean. Despite its importance, uncertainties remain high regarding external iron source fluxes and internal cycling on a global ...
Evolution of (Bio‐)Geochemical Processes and Diagenetic Alteration of Sediments Along the Tectonic Migration of Ocean Floor in the Shikoku Basin off Japan
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- Geochemistry, Geophysics, Geosystems
, 2021-08-03)
Biogeochemical processes in subseafloor sediments are closely coupled to global element cycles. To improve the understanding of changes in biogeochemical conditions on geological timescales, we investigate sediment cores ...
Migration of Arc Magmatism Above Mantle Wedge Diapirs With Variable Sediment Contribution in the Aegean
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- Geochemistry, Geophysics, Geosystems
, 2021-06-17)
Compiled data show the age progression of magmatic centers along the two approximately linear profiles from NE Greece and NW Turkey to the South Aegean Volcanic Arc. The age progression reveals the southwestward migration ...
Cadmium Background Levels in Groundwater in an Area Dominated by Agriculture
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- Integrated Environmental Assessment and Management
, 2019)
Cadmium is a highly toxic trace metal, which can be of geogenic or anthropogenic origin, for example, minerals, phosphate fertilizers, and combustion emissions. Due to its low sorption affinity compared to other heavy ...
Permeability Variations in Illite-Bearing Sandstone: Effects of Temperature and NaCl Fluid Salinity
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- Journal of Geophysical Research: Solid Earth
, 2020)
Temperature changes and variations in pore fluid salinity may negatively affect the permeability of clay-bearing sandstones with implications for natural fluid flow and geotechnical applications alike. In this study these ...
Relationships between spectral features, iron oxides and colours of surface soils in northern Jordan
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- European Journal of Soil Science
, 2020)
Ground data on spectral characteristics of Jordan's soils remain sparse, which makes the interpretation of remote sensing datasets challenging. These are, however, very useful for predicting soil properties and agricultural ...