Results 71 to 80 of about 26,142 (276)

Plagioclase-alkali feldspar geothermometry revisited [PDF]

, 1977
SUMMARY, The plagioclase-alkali-feldspar geothermometer formulated by Stormer 0975) does not take into account the effect of small amounts of calcium in the alkali feldspar.
Marjorie Powell, Roger Powell
core   +1 more source

Cathodoluminescence response from sanidine feldspar [PDF]

, 2013
In the present study, cathodoluminescence (CL) providing information about surface rather than bulk material reveals blue and red emissions within the sanidine feldspar from the Eifel Mountains, Germany.
Karabulut Y., Canmoǧlu A., Can N.
core   +4 more sources

Uso de diopsídio em massas cerâmicas para grés sanitários

Cerâmica
Resumo Atualmente, há uma severa escassez de jazimentos de feldspato de boa qualidade. Por outro lado, o diopsídio vem se mostrando um fundente alternativo para a indústria cerâmica, mas ainda pouco estudado.
R. H. L. Silva, G. A. Neves, H. C. Ferreira, L. N. L. Santana, A. C. V. Nóbrega, R. R. Menezes   +5 more
doaj   +1 more source

Mechanisms of Roadway Instability and Coupled Control Technology for Working Face Passing Through Fault Zones

Energy Science &Engineering, EarlyView.
This study mainly explores the instability characteristics of roadways near faults in the working face. Taking the 51104 transportation roadway of the 51104 working face in Shengxin Coal Mine as the main research object, through theoretical analysis, borehole inspection, numerical simulation and on‐site mine pressure observation, the instability ...
Shuaifeng Yin, Yitao Yan, En Wang, Xubo Zhao, Kanglei Han   +4 more
wiley   +1 more source

Importância das espécies minerais no potássio total da fração argila de solos do Triângulo Mineiro Importance of mineral species in total potassium content of clay fraction in soils of the Triângulo Mineiro, Minas Gerais State, Brazil

Revista Brasileira de Ciência do Solo, 2003
Poucos trabalhos relacionam a reserva de K em solos desenvolvidos sob clima tropical úmido com os minerais presentes na fração argila. Com esse propósito, coletaram-se amostras de 19 solos no Triângulo Mineiro, originados de diferentes materiais de ...
V. F. Melo, G. F. Corrêa, P. A. Maschio, A. N. Ribeiro, V. C. Lima   +4 more
doaj   +1 more source

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

The effect of band-tail states on the thermal stability of the infrared stimulated luminescence from K-feldspar [PDF]

, 2013
The thermal stability of the infrared stimulated luminescence (IRSL) signal from a sedimentary K-feldspar was investigated using isothermal decay study.
Sheng-Hua Li (2268709), Bo Li (19583689)
core  

Schundler feldspar—Glenrock [PDF]

, 1942
Schundler feldspar ...
A.F. Hagner (10070230)
core   +1 more source

Geochemistry and Geochronology of Magmatic Rocks in Southwestern and Northeastern Cambodia: Implications for the Tectonic Evolution and Metallogenesis of the Loei Fold Belt

Geological Journal, EarlyView.
The composition of intrusive rocks suggests that the magma was likely generated in a subduction‐related setting. The arc crustal thickness in the Phnom Sro Ngam and Halo Prospects was probably < 40 km during emplacement. Zircon U–Pb age range indicates a correlation with Loei Fold Belt magmatic activity.
Sirisokha Seang, Khin Zaw, Kakda Kret, Ivan Belousov, Kotaro Yonezu, Koichiro Watanabe, Charles Makoundi   +6 more
wiley   +1 more source

The Effects of Mixed Source Fertilizer Application on Vertisol Fertility and Growth of Mustard [PDF]

Journal of Tropical Soils, 2017
Soil fertility is a crucial factor determining the growth and yield of plants. The increase of nutrient content and availability in soil can be achieved by fertilization.
Jauhari Syamsiyah, Sumarno, Suryono, Nur Echsan Muhamat Rajab, Ida Aryaningrum   +4 more
doaj   +1 more source