Geochemistry: Exploration, Environment, Analysis (GEEA) is a co-owned journal of the Geological Society of London and the Association of Applied Geochemists (AAG).
Geochemistry: Exploration, Environment, Analysis is a Plan S compliant journal.
Editor-in-Chief
The Editor-in-Chief Scott Wood (North Dakota State University, USA) is supported by Senior Associate Editor John Carranza (University of KwaZulu-Natal, South Africa) and an international Editorial Board.
Scope
GEEA welcomes papers that focus on the use of geochemistry in mineral exploration and resource development, the application of geochemistry to environmental issues related to mining and mineral processing, and the development of methods and techniques to geochemically analyze rocks, soils, sediments, waters, and vegetation. Particularly welcome are papers that examine:
- the integration of geological, geochemical, and geophysical methods in relation to mineral exploration
- geochemical mapping at all scales
- the application of geochemistry in identifying the nature and extent of pollution associated with mining and mineral processing, and approaches to remediation
- the application of geochemistry to geometallurgy
- case histories of broad interest, such as the use of innovative geochemical methods leading to new mineral discoveries, and solving environmental issues related to mining, mineral processing and remediation.
GEEA is well-known for its
thematic collections on hot topics. All abstracts are free to read on the Lyell Collection.
GEEA publishes research articles; reviews; editorial content and thematic collections. If you would like to propose a thematic collection, please get in touch with the Editor-in-Chief.
Online in the Lyell Collection
All journal content is hosted online and accessible via the Lyell Collection. The journal publishes 4 issues per year.
Online only and continuous publication
From 2021, the journal is published online only. Following acceptance, the accepted manuscript version of the article is made available online immediately. After completion of the production process, the final Version of Record is published directly in an issue. All accepted manuscripts and versions of record are hosted and accessible via the Lyell Collection.
The journal is abstracted and/or indexed in:
- AGI’s Bibliography and Index of Geology
- Chemical Abstracts
- Current Contents
- Engineering Index
- GEOBASE
- GeoRef
- Mineralogical Abstracts
- PASCAL/CNRS
- GeoArchive
- Thomson ISI database (SCIE, CCIPC & ES)
Recent GEEA highlights
Mineralogy and K–Ar geochronology of clay alteration associated with uranium mineralization in the Patterson Lake Corridor, Saskatchewan
By Jeremy W. Powell, Jeanne B. Percival, Eric G. Potter, Roelant van der Lelij and Ruikai Xie
The Patterson Lake Corridor (PLC) along the southwestern margin of the Athabasca Basin contains high-grade uranium deposits entirely within crystalline basement rocks. Visible–near infrared–shortwave infrared (VNIR–SWIR) spectroscopy measurements were collected on drill core samples from several locations in the PLC. The Triple R and Arrow deposits exhibit downhole spectral trends related to the crystallinity and thermal maturity of clays (illite and kaolinite) and mineralization. The K–Ar dates of silt-and-clay size fractions (10–6 μμm; 6–2 μμm; 2–0.6 μμm; 0.6–0.2 μμm; <0.2 μμm) from five clay-altered samples decrease with grain size, and span 1608 ± 17 Ma to 1060 ± 14 Ma for the Spitfire discovery (n = 14) and 1342 ± 17 Ma to 289 ± 4.3 Ma for the Arrow deposit (n = 4). Alteration assemblages are broadly similar to Athabasca Basin basement-hosted deposits, and K–Ar dates indicate that high-grade uranium mineralization in the PLC reflects remobilization and concentration of primary ores. Integration of geochronology, clay mineralogy and VNIR–SWIR spectral parameters identify fertile fluid conduits when expanded to property or corridor scales, and provide additional evidence that ore grades of the Athabasca Basin deposits reflect several stages of hydrothermal mineralization spanning c. 1000 Ma.
Read the open access article free on the Lyell Collection
Evaluation of magnetite as an indicator mineral for porphyry Cu exploration: a case study using bedrock and stream sediments at the Casino porphyry Cu–Au–Mo deposit, Yukon, Canada
By Martin W. McCurdy, Jan M. Peter, M. Beth McClenaghan, Michael G. Gadd, Dan Layton-Matthews, Matthew I. Leybourne, Robert G. Garrett, Duane C. Petts, Simon E. Jackson and Scott Casselman
The trace element composition of detrital magnetite grains recovered from six local streams around the Casino high-grade porphyry Cu–Au–Mo deposit, west-central Yukon, is compared with igneous and magmatic-hydrothermal magnetite recovered from mineralized and unmineralized host rocks at the deposit. Linear discriminant analysis of 12 elements (Mg, Al, Ti, V, Mn, Co, Cr, Ni, Cu, Zn, Ga and Ge) and plots of Ti v. Ni/Cr are used to discriminate between magmatic-hydrothermal magnetite from the potassic alteration zone and igneous magnetite from granodiorite and quartz monzonite hosting the deposit. Magmatic-hydrothermal magnetite with a trace element composition similar to that from the potassic alteration zone at Casino is identifiable in stream sediments draining the deposit. Copper in magmatic-hydrothermal magnetite, present as minute inclusions of sulfide minerals such as chalcopyrite or substituted within the magnetite crystal lattice, is a strong indicator of Cu mineralization. We show that the chemical compositions of magnetite recovered from stream sediments can be used to explore for porphyry systems.
Read the open access article free on the Lyell Collection