The incrementally zoned Miocene Ayagaures ignimbrite (Gran Canaria, Canary Islands) [PDF]
, 2010 The 20–25 m thick trachyphonolitic Ayagaures ignimbrite cooling unit [(AY); 11.8 Ma] exposed over 250 km2 (onshore volume ca. 4.5 km3 DRE) is the uppermost and most voluminous cooling unit of the Middle Fataga Formation (MFF), part of the Fataga Group ...
Hans-Ulrich Schmincke +5 more
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Cerâmica, 2010 Bone china é um tipo especial de porcelana que foi primeiramente desenvolvida no Reino Unido e é caracterizada pela alta resistência mecânica, grande alvura e translucidez.
D. Gouvêa, S. Hirakata, H. Kahn
doaj +1 more source
Soil formation in high elevation and permafrost areas in the Qinghai Plateau (China) Edafogénesis en zonas elevadas y con permafrost en el Plateau Qunghai (China) Formação do solo em áreas de elevada altitude e em ambientes"permafrost" do planalto de Qinghai Plateau (China) [PDF]
Spanish Journal of Soil Science, 2012 <p style="text-align: justify;">Soil systems continuously gain and lose matter and energy even in areas where climate is too harsh to support the higher plants such as in high elevations and in permafrost environments. The purpose of this
Joselito Arocena +2 more
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Anisotropy of magnetic susceptibility in alkali feldspar and plagioclase [PDF]
, 2016 Feldspars are the most abundant rock-forming minerals in the Earth’s crust, but their magnetic properties have not been rigorously studied. This work focuses on the intrinsic magnetic anisotropy of 31 feldspar samples with various chemical compositions ...
Angel, R. J. +3 more
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Anais da Academia Brasileira de Ciências, 2022 Boulders are an important material in debris flow and their source is coupled with spheroidal weathering profiles that produce corestones. The goal of this work was to establish the geochemical transformations that produced corestones and distinguished ...
CARLA S. SILVEIRA +4 more
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Utilization of Vinasse and Feldspar as Alternative Sources of Potassium Fertilizers and Their Effect on Some Soil Properties and Crop Yield in Sandy Soils [PDF]
Journal of Soil Sciences and Agricultural Engineering, 2016 A field experiment was carried out for two successive seasons (winter season 2013/2014 and summer season 2014 ) on sandy soil at Ismailia Agric. Res. Station , Ismailia Governorate, Egypt (Latitude, 30o 35' 41.901" N and longitude, 32o 16' 45.834" E) to ...
Mona Kenawy, Mona Osman, Wafaa Seddik
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Role of Soluble Starch in the Flotation Separation of Feldspar and Quartz
Kuangchan zonghe liyong, 2022 The role of soluble starch in the flotation separation of feldspar from quartz was revealed through the single mineral flotation test, potentiodynamic test and absorption measurement.
Yaxiong Xiao, Qing Shi, Qiming Feng
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Deep Underground Science and Engineering, EarlyView.Based on experimental results and theoretical analysis, an established rock damage accumulation model that comprehensively considers the preapplied static load, impact peak value, impact frequency, and impact times. Abstract To study the rock damage mechanism under high static loading and superimposed medium strain rate cyclic impact loading, a series ...
Wei Wang +6 more
wiley +1 more source
Investigation of feldspar raw material potential of alkali feldspar granites and alkali feldspar syenites within Central Anatolia [PDF]
, 2019 Alkali feldspar granites are intrusive rocks and mainly composed of alkali feldspar, quartz and plagioclase. They represent one of the major sources that provide raw materials for glass and ceramics industry because of their high feldspar and quartz ...
KADIOĞLU, Yusuf Kağan, DENİZ, Kıymet
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USING NATURAL ALTERNATIVE FERTILIZERS FOR POTATO PRODUCTION UNDER SANDY SOIL CONDITIONS IN EGYPT [PDF]
Journal of Plant Production, 2014 Two field experiments were carried out during the two successive seasons of 2010/2011 and 2011/2012 in the Farm of Agric. Res. Station, Wady El-Natrown Area, Fac. Agric. Cairo University, Egypt under saline water and sandy soil conditions.
M. El-Said, M. El-Helaly, S. Shehata
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