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The nature and fate of natural resins in the geosphere. XII. Investigation of C-ring aromatic diterpenoids in Raritan amber by pyrolysis-GC-matrix isolation FTIR-MS
Springer Science and Business Media LLC - Tập 7 - Trang 1-9 - 2006
Ken B Anderson
Upper Cretaceous amber from the Raritan Formation (Sayerville, New Jersey) has been investigated by Pyrolysis-GC-MS and Pyrolysis-GC-matrix isolation FTIR-MS. Results establish the existence of two distinct forms of amber in this deposit. Both forms are Class Ib ambers, but they are unambiguously differentiated on the basis of their (intact) diterpenoid composition. The presence of callitrisate in...... hiện toàn bộ
13C/12C composition, a novel parameter to study the downward migration of paper sludge in soils†
Springer Science and Business Media LLC - Tập 3 - Trang 1-3 - 2002
Eric Lichtfouse, Karyne Rogers, Cécile Payet, Jean-Christophe Renat
δ13C values of crop and forest soils were measured 8 years after disposal of paper sewage sludge. The carbon transfer from paper sludge downward to the first humic layer is evidenced by a 13C-enrichnient of up to + 5.6‰ due to the input of 13C-enriched sludge carbonates. 13C/12C composition is thus a novel, sensitive parameter to follow the downward transfer of paper sludge carbon.
Molecular mechanics and quantum mechanical modeling of hexane soot structure and interactions with pyrene
Springer Science and Business Media LLC - Tập 1 Số 1 - 2000
James D. Kubicki
Rare earth element geochemistry of outcrop and core samples from the Marcellus Shale
Springer Science and Business Media LLC - Tập 16 - Trang 1-11 - 2015
Clinton W Noack, Jinesh C Jain, John Stegmeier, J Alexandra Hakala, Athanasios K Karamalidis
In this work, the geochemistry of the rare earth elements (REE) was studied in eleven outcrop samples and six, depth-interval samples of a core from the Marcellus Shale. The REE are classically applied analytes for investigating depositional environments and inferring geochemical processes, making them of interest as potential, naturally occurring indicators of fluid sources as well as indicators ...... hiện toàn bộ
Adenine oxidation by pyrite-generated hydroxyl radicals
Springer Science and Business Media LLC - Tập 11 - Trang 1-8 - 2010
Corey A Cohn, Shawn C Fisher, Bruce J Brownawell, Martin AA Schoonen
Cellular exposure to particulate matter with concomitant formation of reactive oxygen species (ROS) and oxidization of biomolecules may lead to negative health outcomes. Evaluating the particle-induced formation of ROS and the oxidation products from reaction of ROS with biomolecules is useful for gaining a mechanistic understanding of particle-induced oxidative stress. Aqueous suspensions of pyri...... hiện toàn bộ
Modeling acid-gas generation from boiling chloride brines
Springer Science and Business Media LLC - Tập 10 - Trang 1-10 - 2009
Guoxiang Zhang, Nicolas Spycher, Eric Sonnenthal, Carl Steefel
This study investigates the generation of HCl and other acid gases from boiling calcium chloride dominated waters at atmospheric pressure, primarily using numerical modeling. The main focus of this investigation relates to the long-term geologic disposal of nuclear waste at Yucca Mountain, Nevada, where pore waters around waste-emplacement tunnels are expected to undergo boiling and evaporative co...... hiện toàn bộ
Quantifying bioirrigation using ecological parameters: a stochastic approach†
Springer Science and Business Media LLC - - 2002
Carla M. Koretsky, Christof Meile, Philippe Van Cappellen
Frontiers and advances in environmental soil chemistry: a special issue in honor of Prof. Donald L. Sparks
Springer Science and Business Media LLC - Tập 21 Số 1 - 2020
Young‐Shin Jun, Mengqiang Zhu, Derek Peak
A demonstration of an affinity between pyrite and organic matter in a hydrothermal setting
Springer Science and Business Media LLC - Tập 12 - Trang 1-7 - 2011
Paula Lindgren, John Parnell, Nils G Holm, Curt Broman
One of the key-principles of the iron-sulphur world theory is to bring organic molecules close enough to interact with each other, using the surface of pyrite as a substrate in a hydrothermal setting. The present paper explores the relationship of pyrite and organic matter in a hydrothermal setting from the geological record; in hydrothermal calcite veins from Carboniferous limestones in central I...... hiện toàn bộ
Eu(III) and Am(III) adsorption on aluminum (hydr)oxide minerals: surface complexation modeling
Springer Science and Business Media LLC -
Anshuman Satpathy, Amy E. Hixon
AbstractAmericium is a highly radioactive actinide element found in used nuclear fuel. Its adsorption on aluminum (hydr)oxide minerals is important to study for at least two reasons: (i) aluminum (hydr)oxide minerals are ubiquitous in the subsurface environment and (ii) bentonite clays, which are proposed engineered barriers for the geologic disposal of used nuclea...... hiện toàn bộ
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