Zobrazeno 1 - 10
of 207
pro vyhledávání: '"Bernhard Schulz"'
Publikováno v:
Minerals, Vol 14, Iss 8, p 817 (2024)
A protocol for the monazite (LREE,Y,Th,U,Si,Ca)PO4 in situ Th-U-Pb dating by electron probe microanalyser (EPMA) involves a suitable reference monazite. Ages of several potential reference monazites were determined by TIMS-U-Pb isotope analysis. The
Externí odkaz:
https://doaj.org/article/55ac1d09347443db83f3acd9074045ec
Autor:
Bernhard Schulz, Juan Pedro Mellado
Publikováno v:
Journal of Advances in Modeling Earth Systems, Vol 11, Iss 6, Pp 1830-1846 (2019)
Abstract The joint effect of droplet sedimentation and wind shear on cloud top entrainment in stratocumulus is investigated with direct numerical simulations. Although it is well understood that droplet sedimentation weakens entrainment while wind sh
Externí odkaz:
https://doaj.org/article/46a45835a76c440fa3818e7b9cdc9d26
Autor:
Bernhard Schulz
Publikováno v:
Frontiers in Earth Science, Vol 9 (2021)
The phosphate mineral monazite (LREE,Y,Th,Ca,Si)PO4 occurs as an accessory phase in peraluminous granites and Ca-poor meta-psammopelites. Due to negligible common Pb and very low Pb diffusion rates at high temperatures, monazite has received increasi
Externí odkaz:
https://doaj.org/article/858581161ba34107bca8f492954e9296
Publikováno v:
Minerals, Vol 11, Iss 11, p 1182 (2021)
The movements and efforts of a circular economy, aiming to tap into the resource potential of ash, require an intimate knowledge of the material; often, target elements within this material are part of complex ash phases. This work shows how automate
Externí odkaz:
https://doaj.org/article/906df3797af34ebfb00a761534ec16bf
Autor:
Bernhard Schulz
Publikováno v:
Minerals, Vol 11, Iss 9, p 981 (2021)
Garnet-bearing metapelites in the Helvetic and Austroalpine pre-Mesozoic polymetamorphic basement are characterised by pressure-temperature path segments reconstructed by microstructurally controlled geothermobarometry, and the Th-U-Pb monazite age d
Externí odkaz:
https://doaj.org/article/45aa0591e84e428fb982c5c54dc76268
Autor:
Yanne da Silva Queiroz, Gláucia Queiroga, Renato de Moraes, Victor Matheus Tavares Fernandes, Edgar Medeiros-Júnior, Hanna Jordt-Evangelista, Bernhard Schulz, Julia Schmiedel, Maximiliano Martins, Marco Paulo de Castro, Cristiano Lana
Publikováno v:
Brazilian Journal of Geology, Vol 49, Iss 3 (2019)
ABSTRACT In the Southeastern Quadrilátero Ferrífero, a package of metapelitic rocks previously attributed to the Archean Rio das Velhas Supergroup crops out in Piranga locality. This study presents the mineral chemistry and U-Pb-Hf zircon geochrono
Externí odkaz:
https://doaj.org/article/a3f0a5dc59e94e32bb05929b06522da5
Autor:
Bernhard Schulz
Publikováno v:
Minerals, Vol 10, Iss 12, p 1103 (2020)
Matter is particulate [...]
Externí odkaz:
https://doaj.org/article/f1df85c6dca54ca09f17d406b2686ffa
Publikováno v:
Minerals, Vol 10, Iss 11, p 1004 (2020)
Scanning electron microscopy based automated mineralogy (SEM-AM) is a combined analytical tool initially designed for the characterisation of ores and mineral processing products. Measurements begin with the collection of backscattered electron (BSE)
Externí odkaz:
https://doaj.org/article/c4358ce32f7843d9b2f6c7aaa01be6cd
Publikováno v:
Minerals, Vol 10, Iss 5, p 484 (2020)
Sewage slush ashes are materials composed of polyphase particles. Ashes are fine-grained with many amorphous components, and analytical techniques such as X-ray diffractometry cannot recover all the properties. For sewage sludge ash, treatment often
Externí odkaz:
https://doaj.org/article/88564766649b4c10afb84bdf4cdd3bba
Publikováno v:
Minerals, Vol 10, Iss 4, p 308 (2020)
Zircon is a main mineral used for dating rhyolitic magmas as well as reconstructing their differentiation. It is common that different populations of zircon grains occur in a single rhyolitic sample. The presence of both autocrystic and antecrystic z
Externí odkaz:
https://doaj.org/article/1e2ccff2356547babe7dc14dd5023d29