Results 41 to 50 of about 10,401 (241)

Geochemical and Geological Investigation of Skarn‐Type Pb–Zn Mineralization in Hastanetepe (Balya‐Balıkesir, Türkiye): An Approach Based on Fluid Inclusions, Sulphur Isotopes and Geochemical Data

Geological Journal, EarlyView.
Integrated petrographic, mineralogical and geochemical data from the Hastanetepe Pb–Zn deposit (Balya, Türkiye) reveal multi‐stage hydrothermal alteration and a magmatic sulphur source. Fluid inclusion and sulphur isotope results indicate a complex fluid evolution responsible for skarn‐type Pb–Zn mineralization along limestone–dacite contacts ...
Esra Ünal‐Çakır
wiley   +1 more source

Deglaciation of the Burren glacio‐karst, western Ireland, during Termination 1: Implications for North Atlantic climate and karstification

Journal of Quaternary Science, EarlyView.
Abstract The Burren uplands in western Ireland form one of the most extensive and best‐preserved examples of glacio‐karst in Europe. Subsumed by the Irish ice sheet during the Late Pleistocene, granite erratic boulders and in situ silica veins in the limestone bedrock provide a rare opportunity to reconstruct the timing and rate of deglaciation ...
Gordon Bromley, Colin Bunce, Brenda Hall, Aaron Putnam, Frank McDermott   +4 more
wiley   +1 more source

High Strength Pyroxene-Based Glass- Ceramic Foams in the Presence of Fe2O3

Iranian Journal of Materials Science and Engineering, 2020
Strong glass-ceramic foams with a compressive strength of 20 MPa were prepared by adding various amounts of Fe2O3 to a soda lime-based glass composition, and SiC as a foaming agent.
P. Shahsavari, B. Eftekhari Yekta, V. Marghussian   +2 more
doaj  

A ramsayite-type oxide, Ca2Sn2Al2O9

Acta Crystallographica Section E, 2010
The title compound, dicalcium nonaoxidodistannate(IV)dialuminate, is the second example which crystallizes in the isotypic structure of a pyroxene silicate, Na2Ti2Si2O9 (ramsayite).
Rong Tu, Takashi Goto, Shunsuke Abe, Hisanori Yamane   +3 more
doaj   +1 more source

FeO-rich, porphyritic pyroxene chondrules in unequilibrated ordinary chondrites

, 1996
A suite of FeO-rich (type II), porphyritic, olivine/pyroxene (POP) chondrules has been studied in detail. Data for ten chondrules from Semarkona (LL3.0) are emphasized, and one chondrule from Chainpur (LL3.4) and two from Parnallee (LL3.6) are included ...
Jones, Rhian H., Rhian H. Jones
core   +1 more source

Modeling the Thermal Properties of Hydrogen‐Based Direct Reduced Iron Using Computational Thermodynamics and Machine Learning

steel research international, EarlyView.
Hydrogen‐based direct reduced iron (H‐DRI) melts differently from scrap and carbon‐bearing DRI. This work combines differential scanning calorimetry experiments, FactSage thermodynamics, and simple composition‐based regression to predict solidus, liquidus, heat capacity, and enthalpy for H‐DRI.
Ankur Agnihotri, Petri Sulasalmi, Pasquale Cavaliere, Ville‐Valtteri Visuri   +3 more
wiley   +1 more source

Estudio y caracterización de vidriados vitrocerámicos basados en piroxeno

Boletín de la Sociedad Española de Cerámica y Vidrio, 2004
A method was proposed to develop pyroxene-based glass-ceramic glazes. First, was studied, by X-ray diffraction and scanning electron microscopy, the effect of several additives in the monophasic crystallization of pyroxene from glasses in the CaO•MgO ...
Lucas, F., Belda, A., Torres, F. J., Alarcón, J.   +3 more
doaj  

Geochemical evolution of the Nyiragongo volcano (Virunga, Western African Rift, Zaire) [PDF]

Bulletin of the Geological Society of Finland, 1985
Strongly undersaturated foiditic lavas (nepheline—melilitites, nephelinites, leucitites) from the active Nyiragongo volcano have been analysed for trace elements (Sc, V, Cr, Co, Ba, REE, Hf, Ta, Th and U) by instrumental neutron activation analysis.
J. Hertogen, L. Vanlerberghe, M.R. Namegabe   +2 more
doaj   +1 more source

(Table 5) Representative analyes of sodic pyroxene and relict pyroxene of ODP Hole 125-778A

, 1992
Calculation based on O = 6. Fe2+ and Fe3+ of sodic pyroxene were calculated according to formula constraints.
Ogawa, Yujiro, Shozui, Masaya, Ishii, Teruaki, Masaya Shozui (6966365), Hirokazu Maekawa (6966362), Saboda, Kristine L, Teruaki Ishii (6963374), Yujiro Ogawa (6961280), Maekawa, Hirokazu, Kristine L Saboda (6966368)   +9 more
core   +1 more source

Iron Physiology and Its Impact on Atopic Diseases: An EAACI Taskforce Report

Allergy, EarlyView.
ABSTRACT Iron is essential for oxygen transport, energy metabolism, and immune regulation. Yet iron deficiency is the most common micronutrient disorder across all age groups, affecting nearly one quarter of the global population. Iron deficiency triggers nutritional immunity, a host defense mechanism that withholds and redistributes iron, contributing
Franziska Roth‐Walter, Ioana Agache, Beatriz Cabanillas, Roberto Berni Canani, Pasquale Comberiati, Holger Garn, Cristina Gomez‐Casado, Karin Hufnagl, Ekaterina Khaleva, Gregorio P. Milani, Daniel Munblit, Nikolaos Douladiris, Liam O'Mahony, Frank Redegeld, Carmen Riggioni, Peter K. Smith, Betty van Esch, Emilia Vassilopoulou, Carina Venter, Diego G. Peroni   +19 more
wiley   +1 more source