Next Article in Journal
Induration Process of MgO Flux Pellet
Previous Article in Journal
Halloysite Nanotubes as an Effective and Recyclable Adsorbent for Removal of Low-Concentration Antibiotics Ciprofloxacin
Article Menu
Issue 9 (September) cover image

Export Article

Open AccessArticle
Minerals 2018, 8(9), 388; https://doi.org/10.3390/min8090388

Ore-Forming Processes at the Xiajinbao Gold Deposit in Eastern Hebei Province: Constraints from EPMA and LA-ICPMS Analysis

1
Key Laboratory of Metallogenic Prediction of Non-Ferrous Metals and Geological Environment Monitoring, Central South University, Ministry of Education, Changsha 410083, China
2
Hunan Key Laboratory of Land and Resources Evaluation and Utilization, Hunan Planning Institute of Land and Resources, Changsha 410007, China
3
School of Geosciences and Info-Physics, Central South University, Changsha 410083, China
4
School of Resources and Safety Engineering, Central South University, Changsha 410083, China
*
Author to whom correspondence should be addressed.
Received: 21 June 2018 / Revised: 2 September 2018 / Accepted: 3 September 2018 / Published: 5 September 2018
(This article belongs to the Section Mineral Geochemistry and Geochronology)
Full-Text   |   PDF [5465 KB, uploaded 5 September 2018]   |  

Abstract

The Xiajinbao gold deposit is located at the northern margin of the North China Craton. Hydrothermal pyrites belonging to three stages were identified: Py1; Py2; and Py3. Geochemical study of these pyrites was conducted using electron probe microanalysis and laser ablation inductively coupled plasma mass spectrometry to investigate the distributions of minor and trace elements, constrain pyrite genesis, and to obtain an improved understanding of the ore-forming processes. Py1 and Py2 contain high concentrations of Au and are interpreted to have been deposited from fluids from a dominantly magmatic source. Py3 grains have the lowest Co/Ni ratios. All generations of pyrite were deposited by mixing of meteoric waters with magmatic-hydrothermal fluids. Boiling of early ore-forming fluids led to the precipitation of Py1 and gold. Decreasing fO2 in the ore-forming system resulted in the formation of Py2 and gold. Fluid mixing was the dominant controlling factor for the precipitation of Py3 together with small amounts of gold. View Full-Text
Keywords: EPMA; LA-ICP-MS; trace elements; pyrite; Xiajinbao gold deposit; Hebei EPMA; LA-ICP-MS; trace elements; pyrite; Xiajinbao gold deposit; Hebei
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Wang, C.; Shao, Y.; Huang, K.; Zhou, H.; Zhang, J.; Liu, Z.; Liu, Q. Ore-Forming Processes at the Xiajinbao Gold Deposit in Eastern Hebei Province: Constraints from EPMA and LA-ICPMS Analysis. Minerals 2018, 8, 388.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Minerals EISSN 2075-163X Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top