Geochronology, Geochemistry, and Tectonic Significance of Pyroclastic Rocks

A special issue of Minerals (ISSN 2075-163X). This special issue belongs to the section "Mineral Geochemistry and Geochronology".

Deadline for manuscript submissions: 31 March 2026 | Viewed by 551

Special Issue Editors

School of Marine Sciences, Guangxi University, Nanning 530004, China
Interests: geochemistry; marine geology

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Guest Editor
College of Earth Sciences, Guilin University of Technology, Guilin 541006, China
Interests: geochemistry; marine sedimentology

Special Issue Information

Dear Colleagues,

We are pleased to announce a new Minerals Special Issue focused on pyroclastic rocks, a critical subject in volcanology, sedimentology, and economic geology. This issue aims to synthesize cutting-edge research on the genesis, transport, and deposition of, as well as alterations in, pyroclastic materials, bridging theoretical advances with practical applications in resource exploration.

Pyroclastic deposits preserve dynamic records of volcanic eruptions, encompassing fragmentation mechanisms, transport dynamics, and syn- to post-depositional processes. Their complex textures, mineralogy, and geochemistry provide critical insights into eruption dynamics, paleoenvironmental reconstruction, and crustal evolution. Furthermore, pyroclastic sequences host significant ore deposits (e.g., epithermal Au-Ag, zeolites, and perlite) and serve as important reservoirs for geothermal energy and groundwater resources.

We invite contributions addressing themes including, but not limited to, the following:

Eruption Processes: Fragmentation mechanisms, column dynamics, and plume modeling.
Diagenesis and Alteration: Glass devitrification and mineral neoformation.
Economic Geology: Ore-forming processes in pyroclastic settings and industrial mineral potential.
Analytical Innovations: High-resolution geochronology and novel geochemical proxies.

Dr. Yu Zhang
Prof. Dr. Chongjin Pang
Guest Editors

Manuscript Submission Information

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Keywords

  • pyroclastic deposits
  • geochronology
  • geochemistry
  • alteration mineralogy
  • eruption dynamics
  • epithermal mineralization

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Published Papers (1 paper)

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Research

21 pages, 6913 KB  
Article
Controls of Zeolite Development on Reservoir Porosity from Lower Permian Formations in Shawan and Its Adjacent Areas, Western Junggar Basin
by Houkuan Lv, Hao Kuang, Lei Zhang, Fangpeng Dou, Chun Li and Lang Pan
Minerals 2025, 15(12), 1247; https://doi.org/10.3390/min15121247 - 26 Nov 2025
Viewed by 282
Abstract
The Shawan Sag and its adjacent areas are rich in hydrocarbon resources. Moreover, the genesis and evolution patterns of zeolite cements in the sandy conglomerate reservoirs have resulted in diverse types of reservoir spaces, a complex composition, and significant heterogeneity. To investigate their [...] Read more.
The Shawan Sag and its adjacent areas are rich in hydrocarbon resources. Moreover, the genesis and evolution patterns of zeolite cements in the sandy conglomerate reservoirs have resulted in diverse types of reservoir spaces, a complex composition, and significant heterogeneity. To investigate their impact on reservoir quality, this study integrates core observations, thin-section petrography, scanning electron microscopy (SEM), whole-rock X-ray diffraction (XRD), and energy-dispersive spectroscopy (EDS) for macro–micro comparative analysis of zeolite cement types, formation mechanisms, and pore systems in the Lower Permian strata of the Shawan Sag and adjacent areas. Research demonstrates that provenance exerts a control on type and origin of the diagenetic zeolites: In the Shawan Sag, zeolites form through hydration of volcanic glass in tuff, while adjacent areas develop zeolites via albitization of plagioclase derived from andesite. This genetic divergence drives pore differentiation: Zeolite (heulandite and laumontite) evolution in the Sag generates grain-edge fractures through cement volume shrinkage and crystalline water release. In contrast, the adjacent areas exhibit reservoir spaces dominated by dissolution pores, resulting from the dissolution of laumontite and calcite, along with a relatively higher overall rock porosity. Full article
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