Results 1 to 10 of about 70,075 (318)
, 2016 We report an efficient method for asymmetric synthesis of chiral oxindoles. Allyl palladium(II) chloride dimer (APC)-catalyzed, in combination with β-isocupreidine (β-ICD)-cocatalyzed, reaction of diazoacetamide with Morita–Baylis–Hillman (MBH ...
Chaoqun Ma (1867639) +3 more
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Geosciences, 2016 The mineralogical indices the Quartz Index (QI), Carbonate Index (CI) and Mafic Index (MI) for ASTER multispectral thermal infrared (TIR) data were applied to various geological materials for regional lithological mapping on the Tibetan Plateau.
Yoshiki Ninomiya, Bihong Fu
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Permian Carbonates in the Venezuelan Andes [PDF]
, 2012 In northern South America, Upper Palaeozoic strata were deposited extensively over peri-cratonic areas associated with restricted seas located between Laurentia and Gondwana, in equatorial Pangea. In many places the successions are rarely exposed, and so
Laya-Pereira, Juan Carlos +1 more
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Diagenetic Barite Growths in the Mixing Zone of a Carbonate Coastal Aquifer
Journal of Marine Science and EngineeringMixing zones in carbonate coastal aquifers are dynamic interfaces where freshwater and seawater converge, triggering complex biogeochemical processes.
Fernando Sola +2 more
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, 2021 A new ReaxFF reactive force field has been developed for metal carbonate systems including Na+, Ca2+, and Mg2+ cations and the CO32- anion. This force field is fully transferable with previous ReaxFF water and water/electrolyte descriptions.
Chen, Chen +2 more
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Tracing wedge-internal deformation by means of strontium isotope systematics of vein carbonates [PDF]
, 2022 Radiogenic strontium isotopes (87Sr/86Sr) of vein carbonates play a central role in the tectonometamorphic study of fold-and-thrust belts and accretionary wedges and have been used to document fluid sources and fluxes, for example, along major fault ...
Herwegh, Marco +3 more
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Journal of Palaeogeography, 2012 Palaeokarst within the Lower to Middle Ordovician Goodwin Formation, Pogonip Group (upper Ibexian-lower Whiterockian) was examined in detail at Meiklejohn Peak, Nevada USA in order to determine its origin, evolution, and relationship to sea level change.
Robert J. Kervin, Adam D. Woods
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Crystals, 2018 Although the minerals belonging to the carbonate group are a widely discussed subject, their relevance remains unchanged due to their many applications in a wide range of disciplines, from mineralogy, geochemistry and geology, to biology, medicine ...
Linda Pastero
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, 2017 The present work deals with the mineralization of alkaline-earth carbonates (mainly barium carbonate) from dilute silica solutions at high pH. It has for long been known that the concerted interaction between these purely inorganic components leads to ...
Eiblmeier, Josef
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, 2022 The oxidative coupling of methane (OCM) is a promising reaction for direct conversion of methane to higher hydrocarbons. The reaction can be performed over oxide-based catalysts with very diverse elemental composition.
Ralph, Kraehnert +5 more
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