Icons / Logo / Facebook Created with Sketch. Icons / Logo / Google Created with Sketch. Icons / Logo / ORCID Created with Sketch. Branding/Logomark minus Citation Combined Shape Icon/Bookmark-empty Icon/Copy Icon/Collection Icon/Close Copy 7 no author result Created with Sketch. Icon/Back Created with Sketch. Match!
Allan Pring
Flinders University
223Publications
29H-index
3,184Citations
Publications 223
Newest
Published on May 1, 2019in Chemical Engineering Science 3.37
Alexander Altree-Williams2
Estimated H-index: 2
,
Joël Brugger36
Estimated H-index: 36
+ 1 AuthorsPavel Bedrikovetsky25
Estimated H-index: 25
Abstract Mineral dissolution flows in porous media occur in numerous industrial and natural processes. We investigate the effects of varying rock-liquid interface on mineral dissolution transport in porous media. The one-dimensional mineral-dissolution flow problem that accounts for varying reacting interface and porosity is essentially non-linear. However, a novel exact solution is derived. The exact solution reveals a four-zone structure of the flow pattern with typical mineral concentration c...
Published on May 15, 2019in Minerals 2.25
Neville J. Curtis , Jason R. Gascooke15
Estimated H-index: 15
+ 1 AuthorsAllan Pring29
Estimated H-index: 29
Our examination of over 230 worldwide opal samples shows that X-ray diffraction (XRD) remains the best primary method for delineation and classification of opal-A, opal-CT and opal-C, though we found that mid-range infra-red spectroscopy provides an acceptable alternative. Raman, infra-red and nuclear magnetic resonance spectroscopy may also provide additional information to assist in classification and provenance. The corpus of results indicated that the opal-CT group covers a range of structur...
Published on Mar 9, 2019in Minerals 2.25
Jing Zhao7
Estimated H-index: 7
,
Allan Pring29
Estimated H-index: 29
Gold–(silver) telluride minerals constitute a major part of the gold endowment at a number of important deposits across the globe. A brief overview of the chemistry and structure of the main gold and silver telluride minerals is presented, focusing on the relationships between calaverite, krennerite, and sylvanite, which have overlapping compositions. These three minerals are replaced by gold–silver alloys when subjected to the actions of hydrothermal fluids under mild hydrothermal conditions (≤...
Published on Jan 1, 2019in Geoscience frontiers 4.16
Jing Zhao7
Estimated H-index: 7
(Flinders University),
Joël Brugger36
Estimated H-index: 36
(Monash University, Clayton campus),
Allan Pring29
Estimated H-index: 29
(Flinders University)
Abstract The replacement of magnetite by hematite was studied through a series of experiments under mild hydrothermal conditions (140–220 °C, vapour saturated pressures) to quantify the kinetics of the transformation and the relative effects of redox and non-redox processes on the transformation. The results indicate that oxygen is not an essential factor in the replacement reaction of magnetite by hematite, but the addition of excess oxidant does trigger the oxidation reaction, and increases th...
Published on Oct 1, 2018in Mineralium Deposita 3.40
Kan Li1
Estimated H-index: 1
(Flinders University),
Joël Brugger36
Estimated H-index: 36
(Monash University),
Allan Pring29
Estimated H-index: 29
(Flinders University)
Sulfide minerals host most of the world’s supplies of metals such as Cu, Ni, Co, Zn, Pb, or Mo, and understanding their crystallization, dissolution, and textural evolution is key to understanding the formation of mineral deposits, metal recovery via metallurgy, and their environmental impact. Despite the prominence of hydrothermally formed sulfide minerals, the interpretation of textures in sulfide petrology relies mainly on comparison with results from experiments conducted under dry condition...
Published on Sep 1, 2018in Transport in Porous Media 2.00
Alexander Altree-Williams2
Estimated H-index: 2
(University of Adelaide),
Joël Brugger36
Estimated H-index: 36
(Monash University)
+ 1 AuthorsPavel Bedrikovetsky25
Estimated H-index: 25
(University of Adelaide)
We derive exact solution for mineral-dissolution reactive flows in porous media with porosity variations. These conditions are relevant to injection of incompatible liquids into aquifers for disposal or waste storage, rock alteration during well stimulation by acidising or invasion of corrosive, far-from-equilibrium fluids related to ore deposit formation and heap or in situ leaching in mineral processing. Despite the porosity change making the one-dimensional flow equations nonlinear, the probl...
Amy Roberts6
Estimated H-index: 6
(Flinders University),
Heather Burke7
Estimated H-index: 7
(Flinders University)
+ 5 AuthorsCatherine Bland (Flinders University)
Abstract This paper presents the results of analyses of rock coatings from Pudjinuk Rockshelter No. 2 in South Australia (SA) using the following methods: 1) Raman microscopy; 2) X-ray powder diffraction; and 3) Scanning electron microscopy coupled with integrated energy dispersive X-ray spectroscopy. The deposits analysed contained a mixture of thenardite, glauberite, halite, sylvinite, gypsum, probable palygorskite and amorphous carbon. The engravings previously extant at the rockshelter are a...
Published on Dec 1, 2017in Mineralogical Magazine 2.21
Edeltraud Macmillan5
Estimated H-index: 5
,
Nigel J. Cook32
Estimated H-index: 32
+ 1 AuthorsAllan Pring29
Estimated H-index: 29
(Flinders University)
The Olympic Dam iron-oxide copper-gold-silver-uranium deposit, South Australia, contains three dominant U minerals: uraninite; coffinite; and brannerite. Microanalytical and petrographic observations provide evidence for an interpretation in which brannerite and coffinite essentially represent the products of U mineralizing events after initial deposit formation at 1.6 Ga. Marked compositional and textural differences between the various types of brannerite and coffinite highlight the role of mu...
Published on Oct 19, 2017
Jing Zhao7
Estimated H-index: 7
(University of Adelaide),
Joël Brugger36
Estimated H-index: 36
(Monash University)
+ 2 AuthorsAllan Pring29
Estimated H-index: 29
(Flinders University)
Symplectic microstructures are abundant in copper–iron–sulfide minerals and are conventionally considered to form by solid-state diffusion processes. Here we experimentally demonstrate that coarsening of exsolution lamellae occurs ∼1000 times faster in the presence of a fluid compared to the equivalent dry system. Bornite–digenite solid solutions (Cu5FeS4–Cu8.52Fe0.11S4.88) were synthesized hydrothermally via the replacement of chalcopyrite, and we compared the microtextures in the product subje...
Published on Apr 20, 2017
Alexander Altree-Williams2
Estimated H-index: 2
,
Allan Pring29
Estimated H-index: 29
+ 1 AuthorsJoël Brugger36
Estimated H-index: 36
A textural and kinetic investigation of the carbonatation of anhydrite in the presence of carbonate- and bicarbonate-bearing solutions under static conditions was conducted. The replacement occurs via a coupled dissolution–precipitation mechanism. Textural and kinetic evidence indicates that the rate-limiting step in the replacement reaction was the dissolution of anhydrite and that the dissolution rate was likely controlled by the diffusion of ionic species in the aqueous phase. Calcium carbona...
12345678910