Lithology and Mineral Resources最新文献_第6页

Special Aspects of the Application of Lithogeochemical Indicators for Reconstructing the Paleoclimate and Composition of Source Areas in the West Siberian Late Jurassic–Lower Cretaceous Sedimentary Basin 应用岩石地球化学指标重建西西伯利亚晚侏罗世-下白垩世沉积盆地古气候和源区组成的特殊方面

IF 0.8 4区地球科学

Lithology and Mineral Resources Pub Date : 2023-11-14 DOI: 10.1134/S0024490223700311

V. G. Eder, A. G. Zamiralova, P. A. Yan

{"title":"Special Aspects of the Application of Lithogeochemical Indicators for Reconstructing the Paleoclimate and Composition of Source Areas in the West Siberian Late Jurassic–Lower Cretaceous Sedimentary Basin","authors":"V. G. Eder, A. G. Zamiralova, P. A. Yan","doi":"10.1134/S0024490223700311","DOIUrl":"10.1134/S0024490223700311","url":null,"abstract":"<p>For Upper Jurassic–Lower Cretaceous rocks of the Bazhenov Formation, a significant positive linear correlation of the content of Th, Hf, Sc, and La with the Al<sub>2</sub>O<sub>3</sub> content was revealed, and their terrigenous genesis was confirmed. It has been determined that the samples, in which the distribution of Sc/Al<sub>2</sub>O<sub>3</sub> and La/Al<sub>2</sub>O<sub>3</sub> values does not satisfy the linear correlation, represent the mixed clayey–siliceous rocks (with P<sub>2</sub>O<sub>5</sub> > 1 wt %) or the substantially pyritized rocks (with the pyrite content exceeding the OM content and C/S ≤ 1), as well as siliceous mudstones (with the SiO<sub>2</sub> content > 70 wt %). It is concluded that, in addition to carbonatized rocks, rocks of the above-mentioned types, as well as rocks subjected to the late diagenetic kaolinization, should be excluded before analyzing the geochemical indicators for reconstructing the formation conditions of the Bazhenov Formation. The formation conditions of these rocks were reconstructed based on the analysis of values of several geochemical modules and indicators. Based on the study of CIA and CIW variations, it was confirmed that the Late Jurassic–Early Cretaceous climate in the West Siberian sedimentary basin was warm and semiarid, and it did not change significantly during the entire period under consideration. For rocks of the Bazhenov Formation, several indicators, such as (La/Yb)<sub>N</sub> and Eu/Eu*, as well as the distribution of trace elements in the Th‒La‒Sc triangular diagram, suggest that rocks of the Bazhenov Formation were deposited in the central and southeastern regions, with the dominant impact of source areas of mafic rocks.</p>","PeriodicalId":18150,"journal":{"name":"Lithology and Mineral Resources","volume":"58 6","pages":"573 - 583"},"PeriodicalIF":0.8,"publicationDate":"2023-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134796282","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}

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Sorption Properties of Cobalt-Bearing Ferromanganese Crusts on the Kocebu Guyot of the Magellan Seamounts Relative to Rare-Earth Metal Cations 含钴锰铁结壳在麦哲伦海山高部岩上对稀土金属阳离子的吸附特性

IF 0.8 4区地球科学

Lithology and Mineral Resources Pub Date : 2023-11-14 DOI: 10.1134/S0024490223700347

G. V. Novikov, N. V. Lobus, O. Y. Bogdanova

引用次数: 0

Multi-Stage Tectonothermal Events in the Nageng Mining Area, East Kunlun, China: Evidence from In Situ U–Pb Dating of Apatite and Zircon 东昆仑那庚矿区多期构造热事件:磷灰石和锆石原位U-Pb定年证据

IF 0.8 4区地球科学

Lithology and Mineral Resources Pub Date : 2023-11-14 DOI: 10.1134/S002449022370027X

Chen Jing

{"title":"Multi-Stage Tectonothermal Events in the Nageng Mining Area, East Kunlun, China: Evidence from In Situ U–Pb Dating of Apatite and Zircon","authors":"Chen Jing","doi":"10.1134/S002449022370027X","DOIUrl":"10.1134/S002449022370027X","url":null,"abstract":"<p>The Nagengkancherer (“Nageng”) silver deposit is the only independent silver mine in Qinghai Province, China. Here, the results of LA–ICP–MS U–Pb dating of apatite and zircon in quartz veins in this area are reported for the first time. The apatite is homogeneous and bright, with characteristics typical of unaltered magmatic apatite that has been unaffected by fluid. The zircons display oscillatory zonation typical of a magmatic origin. Apatite and zircon ages of the Paleoproterozoic Jinshuikou Group are older than those of the Triassic Erashan Formation, with apatite lower-intercept ages of 409.0 ± 3.7 and 376.2 ± 5.6 Ma, respectively, consistent with <sup>207</sup>Pb-corrected ages and representing the two formation ages of apatite minerals. The zircon weighted-mean <sup>206</sup>Pb/<sup>238</sup>U age is 425.2 ± 1.8 Ma, with ages of 425–408 Ma being consistent those of late Silurian outcrops on the periphery of the mining area. This indicates the occurrence of a major tectonothermal event in the late Silurian–Early Devonian, revealing the existence of concealed rock at depth in the mining area and providing new information concerning the geological characteristics of the mining area. The age of 376 Ma is reported here for the first time and provides new constraints on the regional tectonic evolution. One sample from the Erashan Formation contained magmatic zircons with a U–Pb age of 220 ± 0.62 Ma, which represents the age of the country rocks (Erashan rhyolite) captured during the ascent of ore-forming hydrothermal fluids.</p>","PeriodicalId":18150,"journal":{"name":"Lithology and Mineral Resources","volume":"58 6","pages":"632 - 643"},"PeriodicalIF":0.8,"publicationDate":"2023-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134796275","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}

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Grain Size Composition of Neopleistocene Basal Moraines in the Northeasternmost Area of the Russian Plain 俄罗斯平原最东北部新更新世基底冰碛的粒度组成

IF 0.8 4区地球科学

Lithology and Mineral Resources Pub Date : 2023-11-14 DOI: 10.1134/S002449022370030X

L. N. Andreicheva

引用次数: 0

Model of the Gold-Bearing Placer Formation in Platform Areas (Eastern Siberian Platform) 台地区(东西伯利亚台地)含金砂矿形成模式

IF 0.8 4区地球科学

Lithology and Mineral Resources Pub Date : 2023-11-14 DOI: 10.1134/S0024490223700232

Z. S. Nikiforova, Y. A. Kalinin, V. A. Naumov, A. V. Lalomov

{"title":"Model of the Gold-Bearing Placer Formation in Platform Areas (Eastern Siberian Platform)","authors":"Z. S. Nikiforova, Y. A. Kalinin, V. A. Naumov, A. V. Lalomov","doi":"10.1134/S0024490223700232","DOIUrl":"10.1134/S0024490223700232","url":null,"abstract":"<p>A model of the gold-bearing placer formation in platform areas is proposed for the first time. Placers on the platforms are formed mainly due to the Precambrian ore sources spatially confined to the basement outcrops, and, locally, Mesozoic sources formed during the tectonomagmatic activation in the paleorift and deep fault zones. Placers related to the Precambrian sources are characterized by the presence of fine and thin gold (size 0.1‒0.25 mm) and, as a rule, are not of commercial interest. They make up alluvial bar and coastal-marine allochthonous placers. They are considered as complex (mainly rare metal–titanium) placers, where gold occurs as associated component). Placers related to sources of the Mesozoic ore formation stage are assigned to the class of small and medium reserves (gold size ranging from the dust-size to 0.2‒0.25 mm or more) and are usually mined by prospectors' teams. Placers on the platforms do not make up sheet deposits, since they are formed mainly due to sources that do not generate placers. The presence of such placers indicates the proximity of ore occurrence, whose type and location can be determined based on the study of mineralogical-geochemical features of the placer gold.</p>","PeriodicalId":18150,"journal":{"name":"Lithology and Mineral Resources","volume":"58 6","pages":"558 - 572"},"PeriodicalIF":0.8,"publicationDate":"2023-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134796281","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}

引用次数: 0

Postsedimentary Transformations of Silurian Carbonate Rocks on the Central Part of the Chernyshev Ridge (Timan–Pechora Province) 车尔尼雪夫岭中部志留系碳酸盐岩的沉积后转化

IF 0.8 4区地球科学

Lithology and Mineral Resources Pub Date : 2023-11-14 DOI: 10.1134/S0024490223700293

I. I. Danshikova, T. V. Maydl

引用次数: 0

Lydites in the North Onega Synclinorium, Karelia: Trace Element Composition and Possible Genesis 卡累利阿北奥涅加向斜中的溶石:微量元素组成及其可能的成因

IF 0.8 4区地球科学

Lithology and Mineral Resources Pub Date : 2023-11-14 DOI: 10.1134/S0024490223700219

N. I. Kondrashova, P. V. Medvedev

引用次数: 0

Fluid Inclusions in Glendonite Found on Japan Sea Continental Slope: Pyrolysis-free Gas Chromatography-mass Spectrometry Analysis Research Results 日本海陆坡绿连石流体包裹体:无热解气相色谱-质谱分析研究结果

IF 0.8 4区地球科学

Lithology and Mineral Resources Pub Date : 2023-11-14 DOI: 10.1134/S0024490223700281

T. S. Iakimov, E. O. Shaparenko, A. A. Tomilenko, T. A. Bul’bak, N. S. Syrbu, A. O. Kholmogorov, V. Yu. Kalgin

{"title":"Fluid Inclusions in Glendonite Found on Japan Sea Continental Slope: Pyrolysis-free Gas Chromatography-mass Spectrometry Analysis Research Results","authors":"T. S. Iakimov, E. O. Shaparenko, A. A. Tomilenko, T. A. Bul’bak, N. S. Syrbu, A. O. Kholmogorov, V. Yu. Kalgin","doi":"10.1134/S0024490223700281","DOIUrl":"10.1134/S0024490223700281","url":null,"abstract":"<p>For the first time, original results concerning the composition of fluids extracted from glendonite found in Japan (East) Sea continental slope bottom sediment have been obtained. We used the one-act shock-destructive extraction of volatile components from fluid inclusions and made their pyrolysis-free gas chromatography-mass spectrometry analysis, which, despite the limited amount of analytical data, are of scientific and practical interest. According to the data obtained, the fluids in glendonite represent a complex multicomponent mineral-forming system. In addition to water and carbon dioxide, representatives of 13 homologous series of organic compounds were found in the studied fluid inclusions. These include oxygen-free aliphatic and cyclic hydrocarbons (paraffins, olefins, cyclic alkanes and alkenes, arenes, polycyclic aromatic hydrocarbons-PAHs), oxygenated hydrocarbons (alcohols, ethers and esters, furans, aldehydes, ketones, carboxylic acids), nitrogen-, sulfur-, halogenated compounds. An oxidized water-carbon dioxide fluid with a reduced content of hydrocarbons and S–N–F-containing compounds 0.8 rel % is preserved in glendonite.</p>","PeriodicalId":18150,"journal":{"name":"Lithology and Mineral Resources","volume":"58 6","pages":"621 - 631"},"PeriodicalIF":0.8,"publicationDate":"2023-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134796274","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}

引用次数: 0

Sources of Hydrocarbon Gases in the Kedr Mud Volcano, Southern Basin of Lake Baikal: Results of Experimental Studies 贝加尔湖南部盆地克德尔泥火山烃类气体来源:实验研究结果

IF 0.8 4区地球科学

Lithology and Mineral Resources Pub Date : 2023-11-14 DOI: 10.1134/S0024490223700335

A. A. Krylov, O. M. Khlystov, P. B. Semenov, A. K. Sagidullin, S. A. Malyshev, S. V. Bukin, O. N. Vidischeva, A. Yu. Manakov, Z. R. Ismagilov

{"title":"Sources of Hydrocarbon Gases in the Kedr Mud Volcano, Southern Basin of Lake Baikal: Results of Experimental Studies","authors":"A. A. Krylov, O. M. Khlystov, P. B. Semenov, A. K. Sagidullin, S. A. Malyshev, S. V. Bukin, O. N. Vidischeva, A. Yu. Manakov, Z. R. Ismagilov","doi":"10.1134/S0024490223700335","DOIUrl":"10.1134/S0024490223700335","url":null,"abstract":"<div><div><h3>\u0000 <b>Abstract</b>—</h3><p>Outcrops of the coal-bearing Tankhoi Formation (Oligocene–Pliocene), traced along the southern shore of Lake Baikal, submerge under its Southern Basin, where several hydrate-bearing zones of the focused hydrocarbon fluid discharge have been found. To test the hypothesis that coals of the Tankhoi Formation can be the sources of hydrocarbon gases in these zones, we collected coal samples from the Shakhterskaya Gorka outcrop. Experiment on gas generation from the selected samples was carried out in a special autoclave at a temperature of 90°C for eight months. This paper presents the obtained results, which confirm an important role of the process of gas generation from coals in the formation of fluids in the Kedr mud volcano. The further migration of gases was accompanied by the biodegradation and formation of secondary microbial methane due to CO<sub>2</sub> reduction. This was one of the reasons for the carbon isotopic pattern observed in methane (heavier than –50‰ VPDB) and carbon dioxide (positive values) taken from the near-surface sediments and hydrates of the Kedr mud volcano, as well as for the significant enrichment of authigenic siderites in the heavy <sup>13</sup>C isotope.</p></div></div>","PeriodicalId":18150,"journal":{"name":"Lithology and Mineral Resources","volume":"58 6","pages":"534 - 543"},"PeriodicalIF":0.8,"publicationDate":"2023-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134796279","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}

引用次数: 0

Seismogenic Structures in Sediments of Different Lithological Composition and Their Position in Mesozoic–Cenozoic Sections of the Northern Caucasus 北高加索地区中、新生代不同岩性沉积物的发震构造及其位置

IF 0.8 4区地球科学

Lithology and Mineral Resources Pub Date : 2023-11-14 DOI: 10.1134/S0024490223700323

Yu. O. Gavrilov, Yu. R. Gatatdinova

{"title":"Seismogenic Structures in Sediments of Different Lithological Composition and Their Position in Mesozoic–Cenozoic Sections of the Northern Caucasus","authors":"Yu. O. Gavrilov, Yu. R. Gatatdinova","doi":"10.1134/S0024490223700323","DOIUrl":"10.1134/S0024490223700323","url":null,"abstract":"<div><div><h3>\u0000 <b>Abstract</b>—</h3><p>A comparative analysis of the morphological features of horizons affected by paleoearthquakes revealed significant difference of seismites from lithologically different deposits. Powerful earthquakes determine not only the destruction of the sedimentary structure of near-surface deposits and their chaotic mixing, but also actively affect the underlying layers to a depth of several tens of meters; since the degree of diagenetic lithification of rocks in different horizons varies with depth, the nature of their seismogenic transformations also changes. It was found that major seismic events were associated with the time intervals of tectonic and paleogeographic restructuring of sedimentation basins, which consisted in the intensification of the basin floor subsidence and changes in the composition of sediments accumulated in the paleobasin. A special type of seismites was formed during the impact of earthquakes on siliceous deposits, which have been spanned by the diagenetic redistribution of authigenic mineral matter in a gel state.</p></div></div>","PeriodicalId":18150,"journal":{"name":"Lithology and Mineral Resources","volume":"58 6","pages":"544 - 557"},"PeriodicalIF":0.8,"publicationDate":"2023-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134796280","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}

引用次数: 0