Results 61 to 70 of about 23,092 (234)
Particle‐Scale Mechanics of a Regolith‐Type Soil
International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.ABSTRACT The existing studies have reported that the surface of Mars shows the presence of materials having igneous origin, including basalt and regolith‐type coarse soils. These findings are affected by significant uncertainties and, therefore, the selection of simulants for various exploration applications, including surface mobility of rovers ...
Vincenzo Nardelli +2 more
wiley +1 more source
Analysis of equilibrium in garnet-biotite-sillimanite gneisses from quebec
, 1964 An analysis is presented of equilibrium in six specimens of garnet-biotite-sillimanite-plagioclase-potash feldspar-quartz ... gneiss from a metamorphic terrain in south-western Quebec.A nearly uniform Ti content of biotite may be accounted for by an ...
Kretz R.
core +1 more source
, 2013 Educação Superior::Ciências Exatas e da Terra::GeoCiênciasThis image shows the mineral Biotite, common in the group of silicates and part of the group of micas. It contains potassium, magnesium, iron and aluminum in its composition. As the other minerals
U.S. Geological Survey
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SeparationsBiotite in mica-bearing phosphate ores is prone to sliming and forms fine intergrowths with apatite, impairing flotation selectivity. Taurine, sodium lignosulfonate, chitosan, hydroxypropyl distarch phosphate, and carboxymethyl chitosan (CMCS) were ...
Zixuan Yang +11 more
doaj +1 more source
Lithic analysis in African archaeology: Advances and key themes
Archaeometry, EarlyView.Abstract Stone artifacts (lithics) preserve for extended periods; thus they are key evidence for probing the evolution of human technological behaviors. Africa boasts the oldest record of stone artifacts, spanning 3.3 Ma, rare instances of ethnographic stone tool‐making, and stone tool archives from diverse ecological settings, making it an anchor for ...
Deborah I. Olszewski +2 more
wiley +1 more source
Progressive albitisation in the "Migmatite Creek" region, Weekeroo Inlier, Curnamona. [PDF]
, 2009 Albitisation is pervasive and intense in the Curnamona Province. Most FeO-Cu-Au-U-REE deposits are associated with sodic alteration or albitisation (alkaline alteration) worldwide.
Yang, Cheng Lin
core
, 2018 <p>Biotite is a comprehensive computational biology framework in Python for analysis and manipulation of sequence and structure data.</p ...
Kunzmann, Patrick (5511485) +1 more
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Frontiers in Earth ScienceThe Motianling pluton represents a characteristic U-bearing granite pluton in South China. Biotite serves as an indicator for the mineralization of metals such as Cu, Sn, and W in granite. Previous studies have extensively investigated the U metallogenic
Pailong Luo +11 more
doaj +1 more source
Scientific Reports, 2019 The XRF, XRD, polarizing microscopy and SEM-EDS were used to study the alteration mechanism of copper-bearing biotite and the leachable property of copper-bearing minerals in Mulyashy Copper Mine, Zambia.
Gai-rong Wang +4 more
doaj +1 more source
A Newly Discovered Tablet‐Making Facility in Nineveh: Insights From Scientific Analysis
Archaeometry, EarlyView.ABSTRACT This paper addresses the question of tablet technology in the Neo‐Assyrian capital city of Nineveh. Recent excavations in the lower town of Nineveh by the Iraqi–Italian Archaeological Expedition uncovered an exceptional assemblage of more than 200 tablets from an elite residence that appears to have included a scriptorium.
Mathilde Jean +7 more
wiley +1 more source