An investigation of the agronomic value of fine grinding and granulating reactive phosphate rocks : a thesis presented in partial fulfilment of the requirements for the degree of Master of Horticultural Science in soil science at Massey University, New Zealand [PDF]
, 1990 The future trends in the use of reactive phosphate rocks in New Zealand may be dependent on improving the handling characteristics of these fine sand- and powder-like materials. Granulation of these materials has been suggested as one option.
Officer, Sally Jane
core
ガーナ, ビルム・ダイヤモンド産地のアクァティア地域に分布する沖積層の重鉱物分析 [PDF]
, 2005 Heavy mineral analysis was carried out on Pliocene to Recent alluvial sediments from the Birim diamondiferous field od Ghana. The main objective of the study was to examine the mineral composition of heavy fractions in order to identify : (1) the heavy ...
Bruce, Banoeng-yakubo +3 more
core +1 more source
Australian continental‐scale heavy mineral patterns track climate, weathering and erosion
Sedimentology, Volume 72, Issue 5, Page 1430-1452, August 2025.ABSTRACT The heavy mineral cargo of sediment is influenced by a complex and variable overprint of climate and environmental processes acting on weathered crystalline basement sources. Here, a continental‐scale heavy mineral compositional dataset of 1315 surface sediment samples, analysed via automated mineralogy, from across Australia is utilized to ...
Maximilian Dröllner +4 more
wiley +1 more source
Литьë и металлургия, 2012 Comparison of chrome sand of Republic of South Africa abd chromite of new generation Spherichrone (producer – the American company Oregon Resources corporation) for priduction of castings with surface of high quality is given.
A. A. Korobov
doaj
CO2 Energy Reactor – Integrated Mineral Carbonation: Perspectives on Lab-Scale Investigation and Products Valorization [PDF]
, 2016 To overcome the challenges of mineral CO2 sequestration, Innovation Concepts B.V. is developing a unique proprietary gravity pressure vessel (GPV) reactor technology and has focussed on generating reaction products of high economic value.
Chiang, Yi Wai +3 more
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Fine and super‐fine gold in mine waste from a coastal placer in southern New Zealand
New Zealand Journal of Geology and Geophysics, Volume 68, Issue 2, Page 327-341, June 2025.ABSTRACT Reprocessing of mine wastes is a growing procedure around the world, in order to extract more resources from already‐mined rocks. Mineralogical and geometallurgical investigations are useful for planned reprocessing, and in this study at Round Hill placer gold mine we characterise fine (<100 µm) and super‐fine (micron‐scale) particulate gold ...
Marshall Palmer, Dave Craw
wiley +1 more source
Discovery of heavy mineral sand in Djiboutian coastline (Obock area, SE Afar rift)
Journal of Trace Elements and MineralsBackground: In this paper, we present the first study of black sand deposits collected along the coastline of the Obock area, which is located in the North East part of Djibouti (SE Afar Rif).
N. Moussa +4 more
doaj +1 more source
Beach gold transport and aeolian concentration, southern New Zealand
New Zealand Journal of Geology and Geophysics, Volume 68, Issue 2, Page 304-326, June 2025.ABSTRACT Aeolian concentration of iron‐titanium oxides (black sand) is a common phenomenon on coasts around the world but associated aeolian detrital gold is relatively rare. In contrast, Holocene and active dunes at Waipapa beach on the coast of the southern South Island of New Zealand host aeolian black sand layers with locally abundant finely ...
Marshall Palmer, Dave Craw
wiley +1 more source
Lunar material resources: An overview [PDF]
The analysis of returned lunar samples and a comparison of the physical and chemical processes operating on the Moon and on the Earth provide a basis for predicting both the possible types of material resources (especially minerals and rocks) and the ...
Carter, James L.
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Study to establish cost projections for production of Redox chemicals [PDF]
A cost study of four proposed manufacturing processes for redox chemicals for the NASA REDOX Energy Storage System yielded favorable selling prices in the range $0.99 to $1.91/kg of chromic chloride, anhydrous basis, including ferrous chloride.
Greco, C. C. +3 more
core +1 more source