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Sensitivity of varve biogenic component to climate in eastern and central Finland
Biogenic varves as well as the biogenic component of clastic–biogenic varves have great potential as climate and environmental proxies but the...
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Biogenic Processes and Their Role in the Formation of Vendian Oncolites
Among biogenic structures, oncolitesOncolites are notoriously difficult objects to study. External similarities and differences of these structures...
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Spatiotemporal changes of biogenic elements in the Changjiang River Estuary and adjacent waters in summer over the last decade
The long-term spatiotemporal changes of surface biogenic elements in the Changjiang River Estuary and adjacent waters during the summer of 2008–2016...
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New Evidence of the Organic Origin of Carbonaceous Matter in Archean Banded Iron Formation of the Kostomuksha Greenstone Belt of Karelia, Russia
AbstractThe results of studies of carbonaceous matter (CM) and the S isotopic composition of associated sulfides in metapelites of the Neoarchean...
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Ore-Forming Biogenic Factor in the Formation of Sandstone-Type Uranium Deposits
Abstract —The geological environment of ore formation in sandstone-type uranium deposits is considered in light of modern geomicrobiological and...
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Differentiated Estimation of the 137Cs Content on the Biogenic and Lithogenic Suspended Matter in the Black Sea
Abstract —Sedimentation transport of 137 Cs can lead to the significant accumulation of this radionuclide at depths that could not be reached through...
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Geochemical characteristics and origin of the formation water of the Saline Lake Basin: a case study of the Quaternary Qigequan Formation in the Sanhu Depression, Qaidam Basin
Clarifying the geochemical characteristics of formation water and its origin is conducive to clarifying the gas migration path, elaborating the law...
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Spatial distribution and origin of soil CO2 in Andeok area, Jeju
CO 2 flux measurements and soil gas samples were collected to determine the origin and distribution characteristics of soil gas discharged at Andeok...
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Origin and geological control of desorbed gas in multi-thin coal seam in the Wujiu depression, Hailar Basin, China
To understand the natural gas characteristics of multi-thin coal seam, this study selected the desorbed gas of coal seams in different layers of Well...
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Biogenic Contamination and Mineral Pseudo-Biogenic Structures in Earth Rocks and Astromaterials
AbstractBacterial paleontology studies the roles played by organisms in the genesis of sediments and ores. It is, therefore, important to clearly...
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Annual Carbon Budget of Biogenic Greenhouse Gases under Mixed Land Use: Lgov District as a Model Object of the Central Chernozem Zone of Russia
AbstractA comprehensive study of the net annual balance of biogenic carbon-containing greenhouse gases has been performed for Lgov administrative...
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Simulation of biogenic coalbed gas from anthracite in the south of Qinshui Basin, China
High-rank coal, such as anthracite, has been considered difficult to generate biogas because of the high coalification degree. Selecting anthracite...
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Biogenic gas generation effects on anthracite molecular structure and pore structure
This study carries out a simulated experiment of biogenic gas generation and studies the effects of gas generation on the pore structure and...
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Mineralogy and geochemistry of elongated calcite-cemented concretions of the Upper Eocene Birket Qarun Formation (Fayum depression, Egypt): insights into concretions’ origin and paleoenvironmental implications
The upper Eocene fluvial and shallow-marine sandstone of the Birket Qarun Formation is marked by numerous occurrences of elongated calcite-cemented...
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Microbially-mediated formation of Ca-Fe carbonates during dissimilatory ferrihydrite reduction: Implications for the origin of sedimentary ankerite
The origin of sedimentary dolomite has become a long-standing problem in the Earth Sciences. Some carbonate minerals like ankerite have the same...
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A re-classification of Precambrian cherts: implication on diagenetic origin of chert concretion, nodule and geode
The term ‘chert’ ideally refers to fine-grained siliceous (micro/cryptocrystalline) mineral and is also often used for rock with such siliceous...
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Quartz crystallinity index: New quantitative evidence for biogenic silica of the Late Ordovician to Early Silurian organic-rich shale in the Sichuan Basin and adjacent areas, China
Quartz crystallinity index (QCI) was used to reflect the crystallisation of silica in the Late Ordovician Wufeng (WF) and Early Silurian Longmaxi...
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Fossil Organisms and Their Role in the Formation of Black Oncolites of the Vendian Kalancha Formation in the Baikal–Patom Highlands of Eastern Siberia
AbstractElectron microscopy enabled the first identifications of remains of microorganisms and biogenic ultramicrostructures in the black oncolites...
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Reductive dissolution of biogenic magnetite
Reductive dissolution of magnetite is known to occur below the Fe-redox boundary in sediments. In this study, detailed processes associated with...
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Biogenic Migration of Nitrogen and Phosphorus in Saline Drying Lakes in Crimea
Migration of nutrients is studied in five drying salt lakes belonging to the Yevpatoriya Group (Crimea). The nutrients enter in the Crimean salt...
