Results 81 to 90 of about 8,683 (235)
Nanoscale space weathering features in mature lunar soil revealed by TEM and APT
Meteoritics &Planetary Science, EarlyView.Abstract Space weathering significantly alters the optical, chemical, and structural properties of lunar regolith at micro‐ and nanoscales; yet detailed nanoscale variability within individual soils remains underexplored. Here we apply transmission electron microscopy (TEM) and atom probe tomography to four mineral grains (olivine, ilmenite, and two ...
Jennika Greer +6 more
wiley +1 more source
Extraction of titania from ilmenite [PDF]
, 1962 This thesis is an account of an investigation of a process for separating titanium dioxide from ilmenite. The process makes use of three chemical reactions, all conducted at high temperatures. Ilmenite is first oxidised with air, the oxidised ilmenite is
Ketteridge, Ian Bruce
core
TITANOMAGNETITE ORES: MINERAL COMPOSITION AND MÖSSBAUER SPECTROSCOPY [PDF]
Минералогия, 2017 Chemical and mineral composition of ilmenite-titanomagnetite ores from Chiney, Sludinsky, Bystrinsky and Kruchininsky deposits (East Siberia) are studied and compared with those from the Panzhihua pluton in China using microprobe and X-ray diffraction ...
V.P. Lyutoev +5 more
doaj
Potassium isotopic compositions and exposure ages of evolved and silica‐rich achondrites
Meteoritics &Planetary Science, EarlyView.Abstract Some of the oldest igneous rocks in the Solar System include evolved and silica‐rich achondrites that originate from parent bodies less than 1000 km in diameter, referred to as planetesimals. While Earth was initially in a molten state and required continental crust formation and plate tectonics to generate andesite bulk compositions, evolved ...
Z. Vaci +9 more
wiley +1 more source
Phase Development in Carbothermal Reduction and Nitridation of Ilmenite Concentrates
High Temperature Materials and Processes, 2012 The phase development in the course of carbothermal reduction and nitridation of ilmentie concentrates and synthetic rutile was studied in temperature programmed reduction (623–1873 K) and isothermal reduction experiments.
Rezan Sheikh A. +2 more
doaj +1 more source
Impact provenance and age of a unique basalt found in Apollo 12 regolith
Meteoritics &Planetary Science, EarlyView.Abstract Basaltic sample 12032,366‐18 from the Apollo 12 landing site is distinct among basalts collected at this site, other Apollo landing sites, and lunar meteorites in terms of its age, bulk rock composition, and isotopic composition. We present new Pb isotopic data obtained by in situ Secondary Ion Mass Spectrometry on multiple mineral phases in ...
C. Deligny +5 more
wiley +1 more source
Carbon Resources Conversion, 2019 Chemical Looping Combustion is a novel process that generates sequestration-ready CO2 from the combustion of woody biomass without requiring a gas separation step and without diluting the CO2 with N2 from air.
Martin Keller +2 more
doaj +1 more source
Impact of barite and ilmenite mixture on enhancing the drilling mud weight
Egyptian Journal of Petroleum, 2018 It is common knowledge in the technology of drilling fluids, monitoring of the drilling mud weight is critical in developing a mud system that yields good well stability.
M.I. Abdou +3 more
doaj +1 more source
SeparationsA series of homologous saturated fatty acids were introduced and evaluated as collectors for ilmenite flotation using a combination of micro-flotation tests and surface tension measurements.
Jihua Zhai +5 more
doaj +1 more source
Beach Gold and Heavy Mineral Concentrates on Tiwai Spit Gravel Strand Plain, Southland, New Zealand
New Zealand Journal of Geology and Geophysics, Volume 69, Issue 3, September 2026.The Holocene Tiwai Spit on Foveaux Strait is a 12 km by 2 km gravel‐dominated strand plain, ∼10 m above present sea level. Gravel clasts are dominated by well‐rounded quartz cobbles, pebbles and granules derived from Otago Schist 200 km to the north in evolving river drainage systems during late Cenozoic.
Marshall Palmer, Dave Craw
wiley +1 more source