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Minerals
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Isotope Dating and Geochemistry of Granite
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Isotope Dating and Geochemistry of Granite

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

Deadline for manuscript submissions: closed (8 January 2021) | Viewed by 4873

Special Issue Editor

Prof. Dr. Tamara Bayanova

E-Mail Website
Guest Editor
Geological Institute of the Kola Science Centre of the Russian Academy of Sciences 14 Fersman Str., Apatity, 184209 Murmansk region, Russia
Interests: geochronology; isotope geochemistry; isotope analyses; U-Pb dating; accessory minerals; mass-spectrometry; rare earth elements; PGE mineralization; Paleozoic intrusions; Archean alkaline intrusions

Special Issue Information

Dear Colleagues,

Granites are one of the main rocks that not only compose the basement of continents (TTG; alkaline (A-type), igneous (I-type), sedimentary (S-type) granites), but also amalgamate continents separated after plume processes into new supercontinents (Kenorland, Columbia, Rodinia and Pangea) that formed during the Earth’s evolution.

The geochemical research of granite massifs and dike complexes comprises studies of REE-bearing rocks, zircon and other minerals for precise U-Pb (ID-TIMS), SHRIMP and LA-ICP-MS isotope dating of formation and transformation processes of rocks. This Special Issue invites authors to contribute their works on the isotope geochemistry of granites.  We welcome fundamental geochemical studies of granites from the Archean to Paleozoic, showing the whole diversity of research methods, i.e., isotopes, mineralogical surveys, etc.

Prof. Dr. Tamara Bayanova
Guest Editor

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 100 words) can be sent to the Editorial Office for announcement on this website.

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. Minerals 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 2400 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

  • isotope geochemistry
  • geochronological dating
  • granite mineralization
  • I-, A-, S-type granites
  • REE and other diagrams of granite origin
  • Amalgamation granite
  • Archean granites
  • Proterozoic granites
  • Paleozoic granites
  • U-Pb (ID-TIMS) data on granite minerals
  • SHRIMP data on granite minerals
  • LA-ICP-MS data on granite minerals

Published Papers (2 papers)

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Research

22 pages, 5126 KiB  
Article
Identification and Geological Significance of Early Jurassic Adakitic Volcanic Rocks in Xintaimen Area, Western Liaoning
by Zhi-Wei Song, Chang-Qing Zheng, Chen-Yue Liang, Bo Lin, Xue-Chun Xu, Quan-Bo Wen, Ying-Li Zhao, Cheng-Gang Cao and Zhi-Xin Wang
Minerals 2021, 11(3), 331; https://doi.org/10.3390/min11030331 - 23 Mar 2021
Cited by 7 | Viewed by 2438
Abstract
The Western Liaoning area, where a large number of Jurassic-Cretaceous volcanic rocks are exposed, is one of the typical areas for studying the Mesozoic Paleo-Pacific and Mongolia-Okhotsk subduction process, and lithospheric destruction of North China Craton. The identification and investigation of Early Jurassic [...] Read more.
The Western Liaoning area, where a large number of Jurassic-Cretaceous volcanic rocks are exposed, is one of the typical areas for studying the Mesozoic Paleo-Pacific and Mongolia-Okhotsk subduction process, and lithospheric destruction of North China Craton. The identification and investigation of Early Jurassic adakitic volcanic rocks in the Xintaimen area of Western Liaoning is of particular significance for exploring the volcanic magma source and its composition evolution, tracking the crust-mantle interaction, and revealing the craton destruction and the subduction of oceanic plates. Detailed petrography, zircon U–Pb dating, geochemistry, and zircon Hf isotope studies indicate that the Early Jurassic intermediate-acidic volcanic rocks are mainly composed of trachydacites and a few rhyolites with the formation ages of 178.6–181.9 Ma. Geochemical characteristics show that they have a high content of SiO2, MgO, Al2O3, and total-alkali, typical of the high-K calc-alkaline series. They also show enrichment of light rare earth elements (LREEs) and large ion lithophile elements (LILEs), depletion of heavy rare earth elements (HREEs) and high field strength elements (HFSEs), and have a high content of Sr and low content of Y and Yb, suggesting that they were derived from the partial melting of the lower crust. The εHf(t) values of dated zircons and two-stage model ages (TDM2) vary from −11.6 to −7.4 and from 1692 to 1958 Ma, respectively. During the Early Jurassic, the study area was under long-range tectonic effects with the closure of the Mongolia-Okhotsk Ocean and the subduction of the Paleo-Pacific plate, which caused the basaltic magma to invade the lower crust of the North China Craton. The mantle-derived magma was separated and crystallized while heating the Proterozoic lower crust, and part of the thickened crust melted to form these intermediate-acidic adakitic volcanic rocks. Full article
(This article belongs to the Special Issue Isotope Dating and Geochemistry of Granite)
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20 pages, 7075 KiB  
Article
The Late Triassic Molasse Deposits in Central Jilin Province, NE China: Constraints on the Paleo-Asian Ocean Closure
by Zuozhen Han, Jingjing Li, Chenlin Zhu, Wenjian Zhong and Zhigang Song
Minerals 2021, 11(2), 223; https://doi.org/10.3390/min11020223 - 22 Feb 2021
Cited by 4 | Viewed by 1984
Abstract
This paper presents a new detailed study including zircon U-Pb-Hf isotopic, whole-rock geochemical and Sr-Nd isotopic analyses of conglomerate and granitic pebbles from the molasse deposits in central Jilin Province, NE China. These data are used to better constrain the Late Permian–Triassic tectonic [...] Read more.
This paper presents a new detailed study including zircon U-Pb-Hf isotopic, whole-rock geochemical and Sr-Nd isotopic analyses of conglomerate and granitic pebbles from the molasse deposits in central Jilin Province, NE China. These data are used to better constrain the Late Permian–Triassic tectonic evolution regarding particularly the final closure of the Paleo-Asian Ocean (PAO) along the Changhun-Yanji suture (CYS). Zircon U-Pb data indicate that the granitic pebbles formed in the end-Permian (254–253 Ma). The youngest detrital zircon age of 231 Ma from the conglomerate, and presence of the overlying Upper Triassic Sihetun Formation suggests that the molasse deposits on the Jin′gui Island formed during the Late Triassic. The end-Permian granitic rocks display high SiO2 (66.07–74.77 wt %), with low MgO (0.55–2.05 wt %) and Mg# (31.61–43.64) values, together with depleted Hf and Nd isotopic values (εHf(t) = +1.61 to +11.62; εNd(t) = +3.3 to +4.2; (87Sr/86Sr)i = 0.706458–0.706842) and juvenile second-stage Hf model ages (1148–512 Ma), suggesting that they were probably generated by the partial melting of a Meso-Neoproterozoic juvenile metabasaltic lower crust. They are characterized by enrichments in large ion lithophile elements (LILEs) and depletions in high field strength elements (HFSEs), with affinities to igneous rocks forming in a subduction-related setting. This, combined with regional coeval subduction-related magmatic rocks, indicates that the PAO still existed along the CYS. In addition, the identification of Late Triassic molasse deposits on the Jin′gui Island in this study, coupled with occurrences of many Early Triassic syn-collisional granitoids along the CYS, indicates that the final closure of the PAO took place prior to the Late Triassic. Full article
(This article belongs to the Special Issue Isotope Dating and Geochemistry of Granite)
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