Isotope Geochemistry: New Techniques and Applications

A special issue of Geosciences (ISSN 2076-3263). This special issue belongs to the section "Geochemistry".

Deadline for manuscript submissions: 30 September 2026 | Viewed by 884

Special Issue Editors

State Key Laboratory of Geological Processes and Mineral Resources, School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China
Interests: ore deposit; isotope geochemistry; ore exploration; exploration geochemistry; elemental geochemistry

E-Mail Website
Guest Editor
Department of Earth and Planetary Sciences, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
Interests: isotope geochemistry; trace metal geochemistry; ore deposits; hydrogeology; paleoclimate; element cycle evolution

E-Mail Website
Guest Editor
Department of Geology, Juniata College, Huntingdon, PA 16652, USA
Interests: economic geology; mineral exploration; non-traditional metal isotopes; low-conentration geochronology; isotope archaeology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Geochemical—particularly isotopic—data is increasingly being used to understand the processes and circumstances by which materials are accumulated to economically viable levels. The technological advances in instrumentation over the past couple of decades have allowed the development and application of novel systems which were previously absent from our geochemical toolbox.

The formation of an ore body, whether deep-seated or at the surface, involves the sourcing, transport, and deposition of materials. The role ligands in these processes has gained growing recognition,  with clear evidence of isotope discrimination. Likewise, redox state often play a critical role in metal concentration: migration to higher or lower redox potentials can transform a previously mobile metal into an insoluble form, a process also accompanied by isotopic discrimination.

This Special Issue invites contributions exploring these novel isotope systems—both from fundamental and applied perspectives—to highlight the insights they offer into our understanding of the creation of economically viable deposits.

Dr. Da Wang
Dr. Linda Godfrey
Dr. Ryan Mathur
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Geosciences is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1800 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • radiogenic isotopes
  • stable isotopes
  • redox
  • fluids
  • metallogenesis
  • ores
  • atmospheric evolution

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • Reprint: MDPI Books provides the opportunity to republish successful Special Issues in book format, both online and in print.

Further information on MDPI's Special Issue policies can be found here.

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Research

17 pages, 7760 KB  
Article
Terahertz Time-Domain Spectroscopy in Molybdenum Exploration: A Case Study of the Dengshang Deposit, North China Craton
by Xiao-Xia Li, Shan-Shan Li, Murat Tamer, Zhuo-Er Teng, Qun-Feng Miao, Jia-Hui Zhou, Cheng-Xun Li, Ze-Hai Peng, Hao-Chong Huang, Zhi-Yuan Zheng and Kun-Feng Qiu
Geosciences 2026, 16(5), 187; https://doi.org/10.3390/geosciences16050187 - 7 May 2026
Viewed by 310
Abstract
Porphyry-type deposits are characterized by well-developed alteration zoning, among which potassic alteration is closely associated with mineralization and represents a key target for prospecting and exploration. The Dengshang molybdenum deposit is a porphyry-type deposit within the Yanliao molybdenum metallogenic belt. Characterized by deep [...] Read more.
Porphyry-type deposits are characterized by well-developed alteration zoning, among which potassic alteration is closely associated with mineralization and represents a key target for prospecting and exploration. The Dengshang molybdenum deposit is a porphyry-type deposit within the Yanliao molybdenum metallogenic belt. Characterized by deep burial and unclear alteration zoning, it presents challenges for prospecting and exploration. This study integrates field surveys, petrographic analysis, and terahertz time-domain spectroscopy (THz-TDS) to characterize the altered wall rocks and molybdenite ores, aiming to support deep prospecting. The main findings reveal a clear spatial gradient from potassic to propylitic alteration zones within and around the rhyolite porphyry intrusion. THz-TDS reveals that the THz spectral characteristics of potassic-altered wall rocks are closely related to the structure of minerals and the intensity of hydrothermal alteration. Propylitically altered wall rocks exhibit distinctive spectral signatures in the terahertz band. For molybdenite ores, the molybdenite content shows a negative correlation with THz amplitude and a positive correlation with both the absorption coefficient and refractive index. This study proposes that the lower refractive index and absorption coefficient of potassic wall rocks, coupled with the higher values in ores, reflect the spatial position of the ore body. Additionally, the characteristic THz spectral curve of propylitically altered rocks can aid in delineating ore body boundaries. These findings hold practical guiding significance for prospecting and exploration. Full article
(This article belongs to the Special Issue Isotope Geochemistry: New Techniques and Applications)
Show Figures

Figure 1

Back to TopTop