Petrology最新文献

{"title":"Associations and Formation Conditions of a Body of Melilite Leucite Clinopyroxenite (Purtovino, Vologda Oblast, Russia): an Alkaline–Ultrabasic Paralava","authors":"A. Y. Barkov,&nbsp;A. A. Nikiforov,&nbsp;R. F. Martin,&nbsp;V. N. Korolyuk,&nbsp;S. A. Silyanov,&nbsp;B. M. Lobastov","doi":"10.1134/S0869591124700073","DOIUrl":"10.1134/S0869591124700073","url":null,"abstract":"<div><p>A novel petrogenetic scheme is discussed for the formation of a melilite leucite clinopyroxenite body from an alkaline–ultrabasic paralava in the Purtovino area. Its protolith was likely a mixture of Upper Permian sedimentary rocks (aleurolite, marl, among others). Degassing, evaporation, and thermal (contact) metamorphism have significantly influenced the petrogenesis to produce a wide diversity of species present in mineral associations. The crystallization of paralava in a shallow setting was accompanied by an intense degassing and vesiculation of the melt, causing locally high porosity in the rock. An elevated degree of oxidation of the initial melt and progressive rise of <i>f</i>O₂ were likely related to the H₂ loss during the vesiculation and dissociation of H₂O. Consequently, ferrian magnesiochromite (<i>Mchr</i>) and chromian spinel (Fe³⁺-enriched) were the early phases to crystallize; they were followed by members of the magnesioferrite–magnetite series. In situ melting of quartz-bearing and carbonate–clay rocks led to the development of domains of peralkaline felsic glass that surround partially resorbed quartz grains. Numerous grains of wollastonite and rare larnite formed during contact pyrometamorphism. The alkalis increased progressively during crystallization, with a notable enrichment in Na (up to 0.30 apfu) in the åkermanite–gehlenite series. The formation of leucite following melilite is indicated. Euhedral grains of <i>Cpx</i> display concentric cryptic zonation, with a zone of extreme Mg enrichment due to a local deficit in Fe²⁺. As consequences of the continuing rise in <i>f</i>O₂, esseneite crystallized in the rim of zoned clinopyroxene. Two schemes of coupled substitution account for the composition of <i>Cpx</i> grains analyzed in various textural relationships: Mg²⁺ + Si⁴⁺ → (Fe³⁺ + Al³⁺) and (Ti⁴⁺ + Al³⁺) + (Na + K)⁺ → 2Mg²⁺ + Si⁴⁺. The pre-existing grains of olivine (associated with <i>Mchr</i>) were likely replaced completely by sepiolite–palygorskite associated with brownmillerite and its probable Fe³⁺-dominant counterpart, srebrodolskite. The investigated layer of alkaline microclinopyroxenite is unique in the Russian Plate, and a search is thus required to recognize other pyrogenic products. Also, further research is required to evaluate the contents and volumes of coal (or other sources of hydrocarbons) that could cause spontaneous and long-lasting combustion to form the considerable volume of paralava recognized in the Purtovino area.</p></div>","PeriodicalId":20026,"journal":{"name":"Petrology","volume":"32 3","pages":"404 - 421"},"PeriodicalIF":1.0,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141167799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Age and Origin of the Subalkaline Magmatic Series of the Khibiny–Lovozero Complex","authors":"A. A. Arzamastsev,&nbsp;A. A. Ivanova,&nbsp;E. B. Salnikova,&nbsp;A. B. Kotov,&nbsp;V. P. Kovach,&nbsp;M. V. Stifeeva,&nbsp;N. Yu. Zagornaya,&nbsp;Yu. V. Plotkina,&nbsp;E. V. Tolmacheva","doi":"10.1134/S0869591124700024","DOIUrl":"10.1134/S0869591124700024","url":null,"abstract":"<p>The paper presents data on the miaskite syenites of the Lovozero massif, pulaskites of the Khibiny massif, rocks of the larvikite–lardalite series of the Kurga massif, and subalkaline volcanics, which are preserved as remnants in the roof of the massifs. The studied rocks are characterized by a low agpaitic coefficient of &lt;1, the absence of minerals typical of peralkaline rocks (eudialyte, aenigmatite, etc.), and the presence of zircon. The morphological features and chemical composition of zircon from miaskite of the Lovozero massif syenite indicate that the mineral is of magmatic nature. The crystallization age of the miaskites was dated on zircon at 373 ± 5 Мa. The isotope-geochemical characteristics of rocks of the subalkaline series indicate that the miaskites of the Lovozero massif are of mantle origin, show no indications of their crustal contamination, and were produced during the evolution of ankaramite melt. The pulaskites of the Khibiny massif were formed according to an analogous scenario, except their assimilation with crustal material, whose proportion did not exceed, according to model calculations, 10%.</p>","PeriodicalId":20026,"journal":{"name":"Petrology","volume":"32 3","pages":"337 - 358"},"PeriodicalIF":1.0,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141167882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Malyi Zadoi Peridotite−Gabbronorite Massif: Computational Modeling of Crystallization and Evaluation of Indicator Geochemical Parameters of the Parental Melt","authors":"A. V. Lavrenchuk,&nbsp;D. P. Gladkochub,&nbsp;O. M. Turkina,&nbsp;A. S. Mekhonoshin,&nbsp;Ya. Yu. Shelepov","doi":"10.1134/S0869591124700036","DOIUrl":"10.1134/S0869591124700036","url":null,"abstract":"<p>Model calculations were used to estimate the compositions of melts during fractional crystallization corresponding to the formation of the Malyi Zadoi massif, which is located in the Irkut block of the Sharyzhalgai uplift in the southwest of the Siberian craton. It is shown that the gabbronorites of the massif are comagmatic to the plagioperidotites and olivine gabbronorites. The estimates obtained for the composition of the model melts are used to characterize the composition of the mantle source of the parental melt. The geochemical characteristics led us to suggest that the parental melt of the Malyi Zadoi massif was formed by melting an enriched source, a conclusion consistent with isotope data that indicate that the mantle Sm/Nd ratio decreased in the Archean. The probable source of the parental melt could consist of depleted lithospheric mantle material metasomatized by felsic melts coming from rocks of a subducting oceanic plate.</p>","PeriodicalId":20026,"journal":{"name":"Petrology","volume":"32 3","pages":"386 - 403"},"PeriodicalIF":1.0,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141167659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Petrogenesis of the Neoproterozoic Peraluminous Orogenic Granite and Tertiary Phonolites from Jabal Fezzan in Southern Libya","authors":"Ali S. Bensera","doi":"10.1134/S0869591124700012","DOIUrl":"10.1134/S0869591124700012","url":null,"abstract":"<p>The majority of Neoproterozoic rocks exposed in southern Libya, are comprised of intrusive coarse-grained porphyritic, two-mica, and high K-calc alkaline granite. The Jabal Fezzan Granite (JFG) is located in southwestern Libya. In this study, trace elements and whole-rock geochemistry have been used to understand the origin and the process of petrogenesis of the studied granites. The JFG is high-Si, Rb, Y, Nb, and (ASI values greater than 1.1). Mineralogically, it is characterized by the presence of minor muscovite and biotite and a lack of hornblende, exhibiting features of S-type granites, and having a character that belongs to an alkali-calcic series. According to geochemical value, light REE-enriched, characterized by moderate enrichments in LREE (La/Sm), HREE, and weak negative Eu-anomalies. The geochemical modeling of the (JFG) reveals that the JFG derived from the melting of the crust and underwent high fractional crystallization (~50%) of plagioclase and K-feldspar at (H-P) conditions (750–980°C/1–4 GPa). The Jabal Fezzan (JFG) formed during Pan-African orogenic events during the destabilization of the interior Saharan metacraton due to compression stress and transpressive movements along pre-existing weakness and reactivation of shear zones inherited from Paleoproterozoic evolution. The Neoproterozoic basement forms the northernmost margin of the intracratonic Muruzq Basin, as evidenced by (greenschist facies) and intruded granitic rocks derived at the syn-collision stage (630–540 Ma).</p>","PeriodicalId":20026,"journal":{"name":"Petrology","volume":"32 3","pages":"449 - 466"},"PeriodicalIF":1.0,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141168120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rocks of the Ary-Bulak Ongonite Massif: Relationship between Geochemical Features, Mineral-Phase Assemblages, and Formation Processes","authors":"I. S. Peretyazhko,&nbsp;E. A. Savina,&nbsp;A. S. Dmitrieva","doi":"10.1134/S0869591124700061","DOIUrl":"10.1134/S0869591124700061","url":null,"abstract":"<div><p>The paper reports the study of geochemistry, mineral-phase assemblages of rocks of the Ary-Bulak ongonite massif, compositions of major, minor and accessory minerals (quartz, feldspars, topaz, zinnwaldite, prosopite, rare Ca–Al-fluorides, W-ixiolite, columbite, zircon, cassiterite, and fluocerite), fluoride–calcium (F–Ca) phase, and fluorite formed from it. The rock-forming minerals of porphyritic ongonites are quartz, albite and sanidine, and minor minerals are topaz and zinnwaldite. The ongonitic matrix is composed of a quartz–sanidine–albite assemblage with micron-sized needle-shaped topaz crystals. In transitional porphyritic rocks and in the endocontact aphyric zone, the interstices between matrix minerals are filled with a F–Ca phase formed from a F–Ca (fluoritic) stoichiometric melt. Fluoride–silicate liquid immiscibility in ongonitic magma and fluid-magmatic processes led to the redistribution of REE, Y, and many trace elements between melts, fluids, minerals and a contrasting change in mineral-phase assemblages in the rocks. This is associated with the appearance of M-type (T₁ _La–Nd, T₄ _Er–Lu) and W-type (T₃ _Gd–Ho) tetrad effects in the chondrite-normalized REE patterns of rocks. Degassing of magmatic fluids through the endocontact aphyric zone was accompanied by the crystallization of Sr-bearing prosopite and hydrous Ca–Al-fluorides. Aphyric rocks, compared to porphyritic ongonites and porphyritic transitional rocks, are enriched in H₂O, Sr, Ba, Rb, Sn, W, Ta, Be, Zr, Hf, Sb, As, Sc, but contain less Li, Pb, Zn, Y and REE. During the effect of magmatic fluids on rocks enriched in Ca and F, especially in the endocontact aphyric zone, albite was partially or completely replaced by the F–Ca phase and kaolinite, and the F–Ca phase recrystallized into aggregates of micron-sized grains of stoichiometric fluorite without trace elements. Rb-Cs mica also crystallized in the rim of zinnwaldite laths, the zones of which maximally enriched in rubidium with the cation relation Rb &gt; K &gt; Cs may be a new mineral. The geochemistry of the rocks, the features of their mineral-phase assemblages, the compositional evolution of the minerals and the F–Ca phase are a consequence of the formation of the Ary-Bulak massif from ongonitic magma during a fluid-magmatic process complicated by fluoride–silicate liquid immiscibility with the participation of fluoritic and other fluoride melts, as well as magmatic fluids of <i>P–Q</i> and the first types.</p></div>","PeriodicalId":20026,"journal":{"name":"Petrology","volume":"32 3","pages":"359 - 385"},"PeriodicalIF":1.0,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141167660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fenner Trend and the Role of Fractional Crystallization and Ferrobasaltic Magma Immiscibility in Granophyre Petrogenesis: the Case of the Mesoproterozoic Valaam Sill in the Ladoga Graben, Karelia","authors":"A. A. Nosova,&nbsp;N. M. Lebedeva,&nbsp;A. A. Vozniak,&nbsp;L. V. Sazonova,&nbsp;I. A. Kondrashov,&nbsp;Y. O. Larionova,&nbsp;E. V. Kovalchuk","doi":"10.1134/S086959112470005X","DOIUrl":"10.1134/S086959112470005X","url":null,"abstract":"<div><p>This paper presents the results of petrographical, mineralogical, geochemical, and isotope-geochemical studies of granophyres and host ferrogabbros, quartz ferromonzogabbros, quartz monzodiorites, and quartz monzonites in the Mesoproterozoic Valaam sill in the Ladoga Graben on the Karelian Craton. The sill is poorly layered: the ferrogabbros compose the lower part of the sill, the middle part consists of quartz gabbro-monzonites and quartz monzonites, while graphic leucogranites (granophyres) form a dense network of veins mainly in the upper part of the sill. Geochemical features of ferrogabbro, iron-rich composition of olivine and pyroxene, and low Ca composition of plagioclase indicate the evolution along the Fenner trend. The granophyres have petro- and geochemical characteristics of anorogenic alkaline granites, with negative Eu/Eu* = 0.15–0.49 and REE distribution patterns similar to those of granophyres of layered intrusions. All rocks of the sill have close Sr isotopic composition (⁸⁷Sr/⁸⁶Sr)_T = 0.7043–0.7066, and ε_Nd values ranging from −9.6 to −11.2. Model calculations show that fractional crystallization can lead the initial ferrogabbro melt into the immiscibility field. Ilmenite–magnetite–silicate microstructures have been identified in the ferrogabbro and ferromontzogabbro from the sill; similar microstructures in layered intrusions are considered as evidence for the immiscibility of Fe-rich and Si-rich liquids (Holness et al., 2011; Dong et al., 2013). The segregation of the high-silica melt may have occurred in an intermediate crustal chamber at around 350 MPa and 960^oC; magma was supplied as crystalline mush at the sill emplacement level at around 70 MPa and acidic melt migrated through it. This melt underwent fractional crystallization and interacted with host minerals. At the level of sill emplacement, it crystallized under supercooling into granophyre aggregates. The example of the Valaam sill shows that when the Fenner fractionation reaches the final composition–-ferrogabbro, its further evolution with a conjugate decrease in SiO₂ and Fe contents can be related to the incomplete separation and mixing of Fe-rich melts and immiscibly split felsic melt. Such a mechanism can be implemented for the formation of the mafic part of AMCG-type massifs.</p></div>","PeriodicalId":20026,"journal":{"name":"Petrology","volume":"32 3","pages":"307 - 336"},"PeriodicalIF":1.0,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141167664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Model of the Formation of Monzogabbrodiorite–Syenite–Granitoid Intrusions by the Example of the Akzhailau Massif (Eastern Kazakhstan)","authors":"P. D. Kotler,&nbsp;S. V. Khromykh,&nbsp;A. V. Zakharova,&nbsp;D. V. Semenova,&nbsp;A. V. Kulikova,&nbsp;A. G. Badretdinov,&nbsp;E. I. Mikheev,&nbsp;A. S. Volosov","doi":"10.1134/S086959112402005X","DOIUrl":"10.1134/S086959112402005X","url":null,"abstract":"<div><p>This paper presents a model of the formation of a multiphase Akzhailau granitoid massif formed within a Caledonian block of the Earth’s crust in the Hercynian time. This work is based on the results of major and trace element composition, geochronological, mineralogical and isotope-geochemical studies. Three stages of the formation of the Akzhailau massif are distinguished, which differ significantly from the previously accepted concepts about the multicomplex and polychronous origin of this intrusion: (1) the formation of moderately alkaline A₂-type leuсogranites (308–301 Ma); (2) intrusion of monzodiorites into the base of leucogranites (~295 Ma), increasing degree of partial melting of protoliths with the formation of syenites and moderately alkaline granites of I-type (294–292 Ma); (3) intrusion of dikes and small bodies of alkaline ferroeckermannite A₁-type leucogranites in the west and north of massif (~289 Ma). The Akzhailau massif was formed within about 15 Myr in the middle–upper crust through the interaction of plume-related subalkaline basitic magmas with metamorphosed crustal protolith of the orogenic structure.</p></div>","PeriodicalId":20026,"journal":{"name":"Petrology","volume":"32 2","pages":"179 - 200"},"PeriodicalIF":1.0,"publicationDate":"2024-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140775244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental Modeling of Interaction between Fluorine-Containing Granite Melt and Calcite Marble","authors":"Ya. O. Alferyeva,&nbsp;E. N. Gramenitsky,&nbsp;A. S. Novikova","doi":"10.1134/S0869591124020024","DOIUrl":"10.1134/S0869591124020024","url":null,"abstract":"<p>At 750°C and a pressure of 1 kbar, an experiment was carried out simulating the contact-reaction interaction of calcite and a highly evolved fluorine-containing granite melt. The water content in the system did not exceed 10% of the dry charge mass. The possibility of interaction between magmatic melt and calcite is shown. The experimental products contain a zoned column composed of liquid phases and crystalline minerals. In the apocarbonate part, the newly formed phases are cuspidine, quartz, wollastonite, grossular, and a non-crystalline carbonate–fluoride phase <i>LCF</i>. The mineral assemblages in the zones of the apocarbonate part of the column vary depending on the ratio of CO₂ and HF activities. In the silicate part, aluminosilicate glass, alkali feldspar, and plagioclase of variable composition were found. Silicon and fluorine are intensively transferred from the silicate to carbonate part, and a small amount of calcium is transferred in the opposite direction.</p>","PeriodicalId":20026,"journal":{"name":"Petrology","volume":"32 2","pages":"236 - 248"},"PeriodicalIF":1.0,"publicationDate":"2024-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140795770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Genesis of Dunite from the Guli Puton according to Olivine-Hosted Melt Inclusion Data","authors":"L. I. Panina,&nbsp;A. T. Isakova,&nbsp;E. Yu. Rokosova","doi":"10.1134/S0869591124020061","DOIUrl":"10.1134/S0869591124020061","url":null,"abstract":"<div><p>Olivine from the dunite of the Guli pluton crystallized from olivine–melanephelinite magma at temperatures above 1260°C according to the melt inclusion study. The melts were enriched with volatile components (S, CO₂, F, H₂O, slightly Cl) and contained high amount of incompatible elements. In addition, olivine hosts sporadic inclusions of picrite-basalt composition, which are close to picrite–meimechite melts preserved in chromite from dunite according to literature data. This suggests the influx of picrite–meimechite melts and their mixing with melanephelinite magma during the formation of dunites in the magma chamber. Based on the indicator ratios of incompatible elements, these melts and melanephelinite magma had different sources, which were located in undepleted mantle at different depths and derived through different degree of partial melting.</p></div>","PeriodicalId":20026,"journal":{"name":"Petrology","volume":"32 2","pages":"201 - 214"},"PeriodicalIF":1.0,"publicationDate":"2024-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140761273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mineralogical Characteristics and Magmatic Evolution Significance of Garnets in the Late Jurassic Granites in Xingcheng, Eastern North China Craton","authors":"Shiyao Gao,&nbsp;Zhongjie Xu,&nbsp;Fufeng Zhao,&nbsp;Ke Cao,&nbsp;Nanyu Tang","doi":"10.1134/S0869591124020085","DOIUrl":"10.1134/S0869591124020085","url":null,"abstract":"<p>A series of Mesozoic granites related to the subduction of the ancient Pacific plate are widely developed in the eastern part of the North China Craton. These granites contain garnet as a minor phase. Garnet records important information such as magma composition, temperature and pressure, and is an important object in the study of petrological evolution of granites. We take the late Jurassic garnet–bearing monzogranite in Xingcheng, Liaoning as the research object, and the magmatic evolution process in the study area is discussed by the in–situ element geochemical variation and the Raman effect of magmatic garnet girdle. It is found that the garnet has a zonation structure in which the contents of MnO and CaO increase and then decrease, while the contents of FeO and MgO decrease and then increase from the core to the edge. Through the simulation of the crystallization sequence of garnet and biotite, it is found that the garnet has “M” type “spessartine bell–shaped profile”, Mn/(Ca + Mg + Fe) value and Mn/Fe value, which reflects that the crystallization pattern of minerals in the magma is dominated by biotite crystallization to garnet crystallization. It is considered that forward and reverse girdle can exist in the same garnet; the separation and crystallization of minerals in the late magmatic evolution is the main reason for the change in the compositional profile of the garnet. This is consistent with the late evolution of granitic magmas in the northeastern of the North China Craton after the late Jurassic.</p>","PeriodicalId":20026,"journal":{"name":"Petrology","volume":"32 2","pages":"283 - 305"},"PeriodicalIF":1.0,"publicationDate":"2024-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140783707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}