Results 81 to 90 of about 17,002 (248)
The Formation of Magnesite Ores by Reactivation of Dunite Channels as a Key to Their Spatial Association to Chromite Ores in Ophiolites: An Example from Northern Evia, Greece [PDF]
, 2023 Giovanni Grieco +5 more
openalex +1 more source
Polygonal tepee structures of Arabia
The Depositional Record, Volume 12, Issue 1, February 2026.Tepee structures on Sheybarah Island form polygonal microbial cemented crusts in the intertidal. Radiocarbon dating suggests they formed in the Holocene and reflect minor sea‐level changes, highlighting their value as palaeoenvironmental indicators. Satellite surveys identified 126 polygonal features, including coral reefs that may have developed on ...
Pauline Falkenberg +6 more
wiley +1 more source
The Depositional Record, Volume 12, Issue 1, February 2026.The cyclical nature of aridity and humidity led to the alternating deposition of dolomite‐rich and calcite‐rich sediments. During arid phases, the lake hydrology and growth of microbial mats under evaporative and hypersaline environment favors the precipitation of dolomite.
Guolai Li +6 more
wiley +1 more source
Effect of Water Activity on Reaction Kinetics and Intergranular Transport: Insights from the Ca(OH) 2 + MgCO 3 → CaCO 3 + Mg(OH) 2 Reaction at 1·8 GPa [PDF]
, 2016 The kinetics of the irreversible reaction Ca(OH)2 + MgCO3 → CaCO3 + Mg(OH)2 were investigated at high pressures and temperatures relevant to metamorphic petrology, using both in situ synchrotron X-ray diffraction and post-mortem analysis of reaction rim ...
Brantut, N +6 more
core +1 more source
Strength α‐Quartz: New Results From High Pressure In Situ X‐Ray Diffraction Experiments
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 2, February 2026.Abstract We present a suite of 13 uniaxial deformation experiments on fine grained polycrystalline α‐quartz conducted in a D‐DIA apparatus monitored with in situ synchrotron x‐rays. Experimental temperatures range from 25°C to 1199°C with pressures between 1.4 and 3.2 GPa, and strain rates between 3.4 × 10−6 s−1 and 1.8 × 10−5 s−1.
D. A. Jivanjee Medina +3 more
wiley +1 more source
Литосфера, 2016 The geochemistry and REE of magnesite and host carbonate rocks of two Lower Riphean deposits of the South Urals province (Satka and Ismakaevo ore fields) confirm the metasomatic nature of the magnesite.
M. T. Krupenin +2 more
doaj +2 more sources
Glass dolomitic sheets producing [PDF]
, 2012 The article contains results of researches at glass dolomitic sheets producing on the basis of the caustic dolomite received from dolomite of a deposit of “Ruba”, with use of fillers of organic and mineral origin. Influence of quantity of each component
Kornilova, Т. М. +2 more
core
Syn-tectonic, meteoric water-derived carbonation of the New Caledonia peridotite nappe [PDF]
, 2013 International audienceExceptional outcrops recently exposed in the Koniambo massif allow the study of the serpentine sole of the peridotite nappe of New Caledonia (southwest Pacific Ocean).
Boulvais, Philippe +9 more
core +3 more sources
Journal of the American Ceramic Society, Volume 109, Issue 2, February 2026.ABSTRACT Rice husk ash (RHA) is an agricultural by‐product that can replace microsilica (MS) as a suitable silica source in MgO–SiO2 cement mixes, offering low‐carbon benefits. This study investigated the 3D printing properties, including thixotropy and hardened mechanical properties, of the MgO–SiO2 system formed by partial and total replacement of MS
Yiming Peng, Cise Unluer
wiley +1 more source
The model approach of the marketing strategy creation [PDF]
Acta Montanistica Slovaca, 2005 The reserve base is 3400 million tonnes of magnesium content. Identified world resources of magnesite total some 12 billion tonnes, and there are also large resources of magnesium-bearing substitutes such as dolomite, brucite and olivine.
Adriana Csikósová
doaj