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Diagenetic clay mineral distribution in Mesoproterozoic sandstones of the Cariewerloo Basin, South Australia – implications for uranium mobilisation
Diagenetic clay mineral distribution Mesoproterozoic sandstones the Cariewerloo Basin implications uranium mobilisation
2012/3/30
A thick sequence of largely undeformed red-bed sandstones of Mesoproterozoic age, collectively termed the Pandurra Formation, overlies a wide area of crystalline basement of the central and eastern Ga...
Distribution of combined monosaccharides in sediments from the Lake Rawa Danau, West Java, Indonesia: Sources and diagenetic fate of carbohydrates in a tropical wetland
biomarker diagenesis wetland vegetation changes
2017/4/12
Monosaccharide compositions were determined for a sediment core (RD-1) collected from a tropical wetland, Rawa
Danau, West Java, Indonesia (location 6°11′ S and 105°59′ E) to assess the sources and d...
Long-term, low temperature simulation of early diagenetic alterations of organic matter from conifers: Aliphatic hydrocarbons
coniferous organic matter early diagenetic alternations alphatic hydrocarbons inorganic environment
2017/8/9
Early diagenetic alterations of organic matter from conifers were simulated at low temperature of 80°C for five and a half years. Their diagenetic products of aliphatic hydrocarbons were identified an...
Diagenetic influences on iron-bearing minerals in Devonian carbonate and siliciclastic rocks of Estonia
Devonian diagenesis carbonate rocks siliciclastic rocks mixed carbonate-siliciclastic rocks
2009/10/22
The Estonian Devonian sediments consist of carbonate, siliciclastic, and mixed carbonate-siliciclastic deposits that have undergone extensive dolomitization. Chemical analysis of 165 samples and XRD m...
Impact-induced and diagenetic changes in minerals in the sandy ejecta of the Kärdla crater,NW Estonia
impact craters ejecta shock metamorphism C-rich particles stable carbon isotopes
2009/10/22
The sand-rich ejecta containing a considerable amount of mineral grains with impact-induced features was studied in five boreholes drilled around the Kärdla impact meteorite structure. Quartz gra...
Decadal diagenetic effects on d13C and d15N studied in varved lake sediment
Decadal diagenetic effects on d13C d15N studied varved lake sediment
2014/4/18
To assess the long-term (27 yr) effects of sediment aging on stable carbon and nitrogen isotope values (δ13C and δ15N), we used a collection of eight freeze cores of annually laminated (varved) lake s...
Decadal diagenetic effects on d13 C and d15N studied in varved lake sediment
Decadal diagenetic effects varved lake sediment
2014/4/18
To assess the long-term (27 yr) effects of sediment aging on stable carbon and nitrogen isotope values (d13
C
and d15N), we used a collection of eight freeze cores of annually laminated (varved) lak...
Diagenetic changes in Concholepas concholepas shells (Gastropoda,Muricidae) in the hyper-arid conditions of Northern Chile – implications for palaeoenvironmental reconstructions
Diagenetic changes Concholepas concholepas shells hyper-arid conditions
2010/1/19
Variations in the chemical composition of fossil biogenic carbonates, and in particular of mollusc shells, have been used in a range of palaeoenvironmental reconstructions. It is of primary importance...
Diagenetic and sedimentological controls on the composition of organic matter preserved in California Borderland Basin sediments
Diagenetic and sedimentological controls the composition of organic matter preserved California Borderland Basin sediments
2014/4/23
Compound-specific radiocarbon (14C) contents, stable carbon isotopes, and abundances of phytoplankton and vascular plant derived lipid biomarkers (alkenones and fatty acids) were obtained from Santa B...
Facies-related diagenetic alteration in lacustrine–deltaic red beds of the Paleogene Ergeliin Zoo Formation (Erdene Sum area, S. Gobi, Mongolia)
Lacustrine–deltaic Carbonate Phyllosilicates Diagenesis Paleogene Mongolia
2011/11/14
The Late Eocene Ergeliin Zoo Formation, Mongolia, was subdivided into four facies associations/stratigraphic units which
are characterized by various carbonate minerals: (I) mud–sand flat (low-Fe dol...
Distribution of viruses and bacteria in relation to diagenetic activity in an estuarine sediment
viruses bacteria sediment
2014/5/21
The distribution of viruses and bacteria was investigated in relation to bacterial sulfate reduction and total respiration (production of dissolved inorganic carbon, [DIC]) in a coastal sediment. Vira...
A pH plate fluorosensor (optode) for early diagenetic studies of marine sediments
A pH plate fluorosensor early diagenetic marine sediments
2014/5/26
Pore water pH distributions are closely coupled to early diagenetic reactions and transport processes in surficial sediments. In this study, an optical plate fluorosensor for rapid two-dimensional det...
Comparison of Evolution of Trioctahedral Chlorite/Berthierine/Smectite in Coeval Metabasites and Metapelites from Diagenetic to Epizonal Grades
AEM Berthierine Bukk Mountains Chlorite Low-grade Metamorphism Reaction Progress Smectite TEM XRD
2011/12/5
Abstract: The evolution of texture, structure and chemical composition of chloritic clays in coeval pairs of metabasites and metapelites of a prograde sequence from the Bükk Mountains has been investi...
Linkages among the bioreactivity, chemical composition, and diagenetic state of marine dissolved organic matter
bioreactivity chemical composition
2014/5/30
Bacterial growth and the chemical composition of dissolved organic matter (DOM) were followed during a 10-
d decomposition experiment with fresh, algal-derived DOM from an Arctic ice floe. Duri...
Rate of growth of isolated bubbles in sediments with a diagenetic source of methane
Rate of growth of isolated bubbles in sediments with a diagenetic source of methane
2014/6/9
Observation of bubbles in estuarine and coastal sediments indicates that bubbles at or below 10 cm depth grow on seasonal time scales (May-October). In order to determine the controls on this growth r...