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Angela Escolme

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Angela Escolme

Angela Escolme

Postdoctoral Research Fellow in Geometallurgy, ARC TMVC Research Hub

Room 203, Physics Building, Sandy Bay Campus

+61 3 6226 2664 (phone)

+61 3 6226 2547 (fax)

Angela.Escolme@utas.edu.au

View more on Dr Angela Escolme in WARP

Fields of Research

  • Ore Deposit Petrology (040307)
  • Geochemistry (040299)
  • Exploration Geochemistry (040201)
  • Mineral Processing/Beneficiation (091404)
  • Marine Geoscience (040305)
  • Geochronology (040303)
  • Image Processing (080106)
  • Volcanology (040314)

Research Objectives

  • Mining and Extraction of Copper Ores (840202)
  • Copper Ore Exploration (840102)
  • Mining and Extraction of Precious (Noble) Metal Ores (840205)
  • Precious (Noble) Metal Ore Exploration (840105)
  • Aluminium Ore Exploration (840101)
  • Mineral Exploration (840199)
  • Expanding Knowledge in the Earth Sciences (970104)
  • Management of Solid Waste from Mineral Resource Activities (849804)
  • Concentrating Processes of Base Metal Ores (excl. Aluminium and Iron Ores) (840305)

Publications

Total publications

15

Journal Article

(1 outputs)
YearCitationAltmetrics
2018Ma J, Lu X, Escolme A, Li S, Zhao N, et al., 'In-situ sulfur isotope analysis of pyrite from the Pangjiahe gold deposit: Implications for variable sulfur sources in the north and south gold belt of the South Qinling orogen', Ore Geology Reviews, 98 pp. 38-61. ISSN 0169-1368 (2018) [Refereed Article]

DOI: 10.1016/j.oregeorev.2018.05.013 [eCite] [Details]

Citations: Scopus - 5Web of Science - 4

Co-authors: Ma J; Zhang L

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Conference Publication

(7 outputs)
YearCitationAltmetrics
2017Escolme AJ, Berry RF, Hunt J, Cooke DR, 'Novel approaches to geometallurgy using geochemistry - same data, new tricks!', Proceedings from the Tenth International mining geology conference, 20-22 September 2017, Hobart, Australia, pp. 453. (2017) [Conference Extract]

[eCite] [Details]

Co-authors: Berry RF; Hunt J; Cooke DR

2017Escolme AJ, Cooke DR, 'Productora Cu-Au-Mo deposit - a porphyry-related magmatic-hydrothermal breccia complex with local magnetite-apatite and porphyry mineralisation', Abstracts from the FUTORES II Conference - Future Understanding of Tectonics, Ores, Resources, Environment and Sustainability, 04-07 June 2017, James Cook University, Townsville, QLD, pp. 41. (2017) [Conference Extract]

[eCite] [Details]

Co-authors: Cooke DR

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2016Escolme A, 'Novel approaches to geometallurgy using geochemistry - same data, new tricks!', Proceedings from the Gorden Research Conference for Geochemistry of Mineral Deposits, 19-24 June 2016, Les Diablertes, Switzerland, pp. 1. (2016) [Conference Extract]

[eCite] [Details]

2016Escolme A, Berry R, Hunt J, 'Predicting Cu species classification using geochemistry at the Productora Cu-Au-Mo Deposit, Chile', Proceedings of the Third AusIMM International Geometallurgy Conference (GeoMet), 15-16 June, Perth, WA, pp. 113-117. (2016) [Refereed Conference Paper]

[eCite] [Details]

Co-authors: Berry R; Hunt J

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2015Escolme A, Berry R, Hunt J, Potma W, 'Using geochemistry to inform geometallurgy at the productora Cu-Au-Mo deposit, Chile', Proceedings from the Society of Economic Geologists 2015: World-Class ore Deposits: Discovery to Recovery, 27-30 September 2015, Hobart, Australia, pp. 1. (2015) [Conference Extract]

[eCite] [Details]

Co-authors: Berry R; Hunt J

2015Escolme A, Halley S, Potma W, 'The Productora Cu-Au-Mo Deposit, Chile', Proceedings of the SGA Biennial Meeting, 24-27 August 2015, Nancy, France, pp. 287-290. (2015) [Refereed Conference Paper]

[eCite] [Details]

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2014Escolme A, Cooke D, Hunt J, Berry R, Fisher L, et al., 'Ore characterisation and geometallurgy modelling: productora Cu-Au-Mo deposit, Chile', Proceeding from the Second International Seminar on Geometallurgy, 1-3 December 2014, Santiago, Chile, pp. 1. (2014) [Conference Extract]

[eCite] [Details]

Co-authors: Cooke D; Hunt J; Berry R

Thesis

(1 outputs)
YearCitationAltmetrics
2016Escolme AJ, 'Geology, geochemistry and geometallurgy of the Productora Cu-Au-Mo deposit, Chile' (2016) [PhD]

[eCite] [Details]

Other Public Output

(6 outputs)
YearCitationAltmetrics
2018Ahmed A, Cooke DR, Cracknell M, Hood SB, Baker M, et al., 'Yerington district, Nevada', AMIRA International, Australia (2018) [Report of Restricted Access]

[eCite] [Details]

Co-authors: Ahmed A; Cooke DR; Cracknell M; Hood SB; Baker M; Orovan E; Phillips J; Belousov I; Olin P; Thompson J

2018Baker M, Escolme A, Pacey A, 'AMIRA P1153 Mineral chemistry database', AMIRA International, Australia (2018) [Report of Restricted Access]

[eCite] [Details]

Co-authors: Baker M

2018Danyushevsky L, Goemann K, Stepanov S, Escolme A, 'P544: Quantitative mineralogy, gold deportment and identification of Cu sulphides', CODES Technology Services, Hobart, Tasmania, pp. 1-308. (2018) [Report of Restricted Access]

[eCite] [Details]

Co-authors: Danyushevsky L; Goemann K; Stepanov S

2015Escolme A, 'Productora geometallurgical modelling', Productora Geometallurgical Modelling, University of Tasmania, Australia, pp. 1-8. (2015) [Report of Restricted Access]

[eCite] [Details]

2015Escolme AJ, 'ABC Courtney Hour', ABC Courtney Hour Thursday 1st October 2015, ABC Radio, Tasmania (2015) [Media Interview]

[eCite] [Details]

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2015Escolme AJ, 'Best student oral presentation', World-Class Ore Deposits: Discovery to Recovery Conference, Society of Economic Geologists, Australia (2015) [Award]

[eCite] [Details]

Grants & Funding

Funding Summary

Number of grants

6

Total funding

$315,573

Projects

Origins and significance of breccias in the Grasberg porphyry deposit, Indonesia (2020 - 2023)$100,501
Description
This PhD thesis will characterise the geology, alteration and mineralisation of breccias at the Grasberg porphyry Cu-Au deposit, Indonesia. Detailed core logging and (if possible) underground mapping will be supplemented with detailed petrographic and mineralogical characterisation to resolve the history of brecciation at Grasberg, its implications for the evolution of the hydrothermal system and for the understanding of ore genesis. Detailed breccia facies analyses will be used to help place brecciation events within the sequence of volcanism, intrusive activity and mineralisation at Grasberg, and to determine the processes that caused brecciation. Characterisation of individual breccia facies will also provide improved understanding of the mining and processing characteristics of breccia-hosted ore and will inform the development of new genetic and exploration models for breccia-hosted porphyry Cu-Au mineralisation.
Funding
Freeport McMoRan ($100,501)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
Cooke DR; Escolme AJ; Carey RJ
Period
2020 - 2023
Geochronology of the Rincones de Araya porphyry prospect (2019)$7,092
Description
This project will provide geochronological context for mineralizing events at the Rincones de Araya porphyry project. Dating ofmolybdenite (Re-Os). alunite (Ar-Ar). and host intrusions (U-Pb, zircon) will ideally produce a geochronological framework for understanding thevariable alteration and mineralization present at the site. This funding has been provided by the SEG and these analyses will supplement work that ispart of AMIRA P1202, increasing the impact of the research.
Funding
Society of Economic Geologists Foundation Inc ($7,092)
Scheme
Grant-Hugh McKinstry Fund
Administered By
University of Tasmania
Research Team
Escolme AJ; Eastman K
Year
2019
Geological and geometallurgical characterization of the high-Au domain within West Dome, Telfer (2018)$15,320
Description
Honours project for Hannah Couper.
Funding
Newcrest Mining Limited ($15,320)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
Cooke DR; Escolme AJ
Year
2018
Lihir Pyrite and Geometallurgy (2018)$50,000
Funding
Newcrest Mining Limited ($50,000)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
Escolme AJ; Meffre SJM; Danyushevsky LV
Year
2018
Identification and characterisation of geological domains for geometallurgical and geoenvironmental modelling (2018 - 2019)$20,000
Description
Mining operations are increasingly reliant on digital geological data to inform all aspects of ore deposit extraction, refinement and remediation. These data, e.g. drill core hyperspectral imagery, contain information on geological features and processes that are typically interpreted by geologists using drill core logs and geochemical assays. Despite this, converting high resolution hyperspectral imagery and associated mineralogical classifications into geological knowledge that informs mine-scale block models is yet to be fully realised. This PhD project will make use of unprecedented access to multi-scale digital geological data from a variety of porphyry and epithermal ore deposits with the overarching aim of defining and characterising geological features relevant to mining operations. Research activities are expected to include investigation, assessment and implementation of image processing and supervised and unsupervised machine learning methods for defining patterns in multi-scale geological data. The outcomes of this project are expected to facilitate the integration of large volumes of digital data from diverse sources with existing geological knowledge in order to develop the next generation of models for ore deposit exploitation. As this PhD project forms part of the ARC Transforming the Mining Value Chain (TMVC) AMIRA P1202 funded "Far-field and near mine footprints" project, specifically within Module 4 "The transition zone". This project will involve close collaboration with TMVC and AMIRA P2102 project industry and academic partners.
Funding
Minerals Council of Australia ($20,000)
Scheme
Grant
Administered By
University of Tasmania
Research Team
Cracknell M; Escolme AJ; Jiang D
Period
2018 - 2019
Ore Characterisation at the Productora deposit, Chile (2014 - 2016)$122,660
Description
The Productura deposit is a pre-feasibility IOCG-style breccia hosted Cu-Au-Mo deposit located in Chile. The aims of this PhD project are to investigate relationships between alteration patterns and ore textures at the Productora deposit, particularly in the transitional ore zone, which may impact on liberation behaviour and flotation response. It will develop quantitative and predictive geometallurgical models through characterisation of the ore(s) and altered rocks at Productora in order to facilitate modelling and prediction of processing behaviour. The emphasis will be on understanding mineralogical and geochemical zonation patterns and their relationship with geometallurgical characteristics of the ores, including mineral texture and physical properties related to processing behaviour. Research techniques will include drill core logging and high resolution imaging, automated optical microscopy, mineral liberation analysis (MLA), LA-ICPMS analysis and ore genesis/geochemical techniques as required.
Funding
CSIRO-Commonwealth Scientific & Industrial Research Organisation ($29,658); Hot Chili Ltd ($90,502); The Australasian Institute of Mining and Metallurgy Education Endowment Fund ($2,500)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
Escolme AJ; Cooke DR; Hunt JA; Berry RF
Period
2014 - 2016

Research Supervision

Current

6

Current

DegreeTitleCommenced
PhDAu-bearing Pyritic Ore of Lihir, Papua New Guinea: Its Physicochemical Character and Nature of the Causative Fluids2017
PhDMineralogical, Textural, Geochemical Characterisation and Geometallurgical Models at Quartz-Pyrite-Gold Vein and Breccia System, Mankayan District, Philippines2018
PhDGeological and Geometallurgical Characterisation of Porphyry Deposit Alteration Overprints2018
PhDEvaluating Applications of Hyperspectral Data for Predicting Mineral Processing Attributes and Waste Characteristics of Slurries2018
MastersGeometallurgical controls on grade by size at Gramalote Au deposit, Colombia2019
PhDMineral chemistry for Mineral Exploration by Laser Induced Breakdown Spectroscopy2019