Results 71 to 80 of about 4,092 (217)

Thermodynamic Modeling of Lithium Enrichment During Partial Melting: The Importance of Partition Coefficients

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 7, July 2026.
Abstract Predicting the partial melting conditions that generate Li‐rich peraluminous melts is of major economic and societal importance. However, existing models disagree on the optimal conditions (e.g., pressure, temperature, protolith) and, consequently, on targets for exploration.
Nicolas Riel   +6 more
wiley   +1 more source

EXAMINATION OF TWO GRANITE PHASES ALONG WADI ABU ZAWAL AREA, NORTHEASTERN DESERT, EGYPT [PDF]

open access: yesDelta Journal of Science, 2006
The present work deals with the two granite phases along Wadi Abu Zawal area, North Eastern Desert, Egypt. G. Ad-Dub is located at the northeaster part of the mapped area as an elongate granitoid belt covering collectively about 0.5km2, tending NE and ...
Ata A. El Shafi, Wifky A. EL-Naggar
doaj   +1 more source

Soda Ash Free Batches for Novel Container Glass Compositions

open access: yesInternational Journal of Applied Glass Science, Volume 17, Issue 3, July 2026.
A series of novel glass compositions incorporating up to 50% recycled cullet is melted from batches free of soda ash. Their viscosity–temperature, liquidus, and electrical conductivity characteristics are comparable to conventional soda–lime—silica glasses, enabling processing in conventional installations while markedly reducing batch‐to‐melt ...
Tomasz Engelmann   +2 more
wiley   +1 more source

Alkali feldspar granite clasts from Jurassic conglomerate, Murihiku Terrane, South Island, New Zealand

open access: yes, 2000
2000We newly discovered rift-related alkali feldspar granite clasts consisting of perthitic alkali feldspar, quartz, arfvedsonite and/or aegirine from Jurassic conglomerate beds in the Murihiku Terrane, New Zealand. The alkali feldspar granite clasts are
Adachi, Mamoru   +2 more
core   +1 more source

Carbon Dioxide Uptake and Storage in Construction Materials: Mechanisms, Theoretical Capacity, and Global Potential

open access: yescScience, Volume 2, Issue 2, June 2026.
ABSTRACT The construction sector constitutes a major source of global carbon dioxide emissions, and cement production contributes substantially via fuel combustion and limestone decomposition. These challenges have encouraged the incorporation of carbon dioxide into construction materials through mineralization.
Liyuan Chen, Aidong Yang
wiley   +1 more source

Mineralogy and Petrology of an Olivine Diabase Sill Complex and Associated Unusually Potassic Granophyres, Sierra Ancha, Central Arizona [PDF]

open access: yes, 1969
The Precambrian Sierra Ancha sill complex, 700 to 800 feet thick, was intruded into flat-lying sedimentary rocks of the Apache Group in central Arizona. The bulk of the complex consists of a central layer of feldspathic olivine-rich diabase and upper and
Smith, Douglas
core   +1 more source

Geochemistry of Granites in Panggong Lalat, Gua Musang, Kelantan [PDF]

open access: yesBIO Web of Conferences
Granites are among the most significant rock formations in the Earth’s crust and play a crucial role in various geological processes. This study focuses on examining the geology and granitic rock formations in Panggong Lalat, Gua Musang, Kelantan through
Shafiee Nor Shahida   +3 more
doaj   +1 more source

Progressively Fenitised Schist and Carbonatitic Clasts From a Metasomatic Aureole Beneath the Alkalic Dunedin Volcano, Otago, New Zealand

open access: yesNew Zealand Journal of Geology and Geophysics, Volume 69, Issue 2, June 2026.
Clasts of albite‐porphyroblastic quartzofeldspathic schist, derived from the Otago Schist basement, occur within the Port Chalmers Breccia, a diatreme at the centre of the Dunedin stratovolcano, New Zealand. Schists have undergone varying degrees of replacement reactions (at temperatures of 300° to >500°C) producing hornfelses, with Ca‐ and K‐enriched ...
Alan F. Cooper
wiley   +1 more source

40Ar-39Ar Dating of Muscovite from the Zhaojinggou Nb-Ta Polymetallic Deposit in Wuchuan County of Inner Mongolia and Its Geological Implications

open access: yesYankuang ceshi, 2017
The Zhaojinggou Nb-Ta polymetallic deposit in Inner Mongolia is a newly discovered large rare metal ore deposit. The reserve of Nb-Ta oxides is more than 8200 tons.
GAO Yun   +5 more
doaj   +1 more source

The Occurrence and Morphology of Naturally Occurring Respirable Mordenite Mineral Fibres in New Zealand

open access: yesNew Zealand Journal of Geology and Geophysics, Volume 69, Issue 2, June 2026.
Mordenite is a naturally occurring zeolite mineral that is the seventh most common zeolite mineral globally, forming at low temperatures (≥100°C) in hydrothermal systems. In New Zealand, extensive deposits of mordenite are commonly associated with areas of hydrothermal alteration, particularly in the Coromandel and Taupo Volcanic Zones.
Ayrton R. Hamilton   +6 more
wiley   +1 more source

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