Results 31 to 40 of about 17,937 (217)
Lithostratigraphy, depositional history and sea level changes of the Cauvery Basin, southern India [PDF]
Geološki Anali Balkanskoga Poluostrva, 2003 The sedimentary sequence exposed in the erstwhile Tiruchirapalli district hosts a more or less complete geological record of the Upper Cretaceous-Tertiary period.
Muthuvairvasamy Ramkumar +2 more
doaj +1 more source
Physical and chemical weathering rates and CO2 consumption in a tropical lateritic environment: the upper Niger basin [PDF]
, 1998 The chemical composition of Niger river water measured bimonthly at Bamako Mali. during the period 1990–1992 provides an estimate of present weathering rates in the upper Niger basin.
Boeglin, Jean-Loup, Probst, Jean-Luc
core +2 more sources
Ba[C(CN)3]2 and Pb[C(CN)3]2: Two Remarkably Different Heavy Main‐Group Metal Bistricyanomethanides
Zeitschrift für anorganische und allgemeine Chemie, EarlyView.Metathesis reactions of either barium dichloride, BaCl2, or lead dichloride, PbCl2, respectively, with Ag[C(CN)3] in water yielded single crystals of anhydrous Ba[C(CN)3]2 and Pb[C(CN)3]2. Ba[C(CN)3]2 crystallizes in the monoclinic space group P21/n (no. 14) with the lattice parameters a = 437.98(3) pm, b = 1685.36(11) pm, c = 1398.87(9) pm, β = 96.541(
Olaf Reckeweg +6 more
wiley +1 more source
The Material Basis of 18th‐Century Meissen Porcelain
Archaeometry, EarlyView.ABSTRACT In the summer of 1708, the quest for making hard‐paste porcelain from Saxonian clay and other mineral resources succeeded. This was achieved by applying as its essential ingredient newly discovered pure kaolin from Heidelsberg near Aue, western Saxon Ore Mountains.
Robert B. Heimann
wiley +1 more source
GeosciencesThe origin of volatile elements, the timing of their accretion and their distribution during Earth’s differentiation are fundamental aspects of Earth’s early evolution.
Dominik Loroch +4 more
doaj +1 more source
Estudios Geologicos, 1992 Segun la cristalinidad de Illita (IC) la evolución metamórfica de la zona sudoeste de la Cordillera Cantábrica tuvo lugar en varias etapas. Siguiendo una deformación precámbrica con un metamorfismo de bajo grado, un evento térmico durante el Ordovícico ...
M. Keller, S. Krumm
doaj +1 more source
Non-destructive analysis of pathological belemnite rostra by micro-CT techniques [PDF]
Acta Palaeontologica Polonica, 2020 Previously, palaeopathological features of fossil hardparts were often difficult to interpret because it was impossible to decipher their internal structure without destroying the specimens. We applied high-resolution computedtomo graphy (CT) to document
René Hoffmann +4 more
doaj +1 more source
Scientific Reports, 2023 Syneruptive magma mixing is widespread in volcanic eruptions, affecting explosivity and composition of products, but its evidence in basaltic systems is usually cryptic.
Diego González-García +3 more
doaj +1 more source
Assessing the accuracy of δ18<\sup>Osw estimates from corals: lessons from simple Monte Carlo simulations [PDF]
, 2008 EGU2008-A-04391 Paired measurements of δ18O and Sr/Ca in coral aragonite are routinely used for deriving estimates of δ18Osw and, by extension, sea surface salinity variations over the past centuries. However, in practice, the accuracy (or the error) of
Cahyarini, S. Y. +5 more
core
Intermediate valence behavior in CeCo9Si4
, 2004 The novel ternary compound CeCo$_9$Si$_4$ has been studied by means of specific heat, magnetisation, and transport measurements. Single crystal X-ray Rietveld refinements reveal a fully ordered distribution of Ce, Co and Si atoms with the tetragonal ...
D. Eckert +14 more
core +1 more source