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Full-Text Articles in Physical Sciences and Mathematics

Application Of High-Precision 3d Seismic Exploration Technology In Huainan Mining Area, Liu Jun, Zhao Wei, Han Biwu Dec 2020

Application Of High-Precision 3d Seismic Exploration Technology In Huainan Mining Area, Liu Jun, Zhao Wei, Han Biwu

Coal Geology & Exploration

In order to deeply analyze the indication of oil shale development characteristics on paleoenvironments and provide theoretical guidance for oil shale resource evaluation, the organic geochemistry and elemental geochemistry characteristics of the Neogene Zhangcun Formation oil shale in the central part of the Qinshui basin were analyzed by Rock-Eval and TOC and the paleoclimate and paleogeographic environments of the depositional period were discussed as well. The results show that the oil shale of Zhangcun Formation has the low oil content which Tar=4.15%, higher hydrocarbon potential, kerogen is of sapropel type(I1), which has relatively shallow burial depth. The element …


Evaluation And Analysis Of Paleoenvironments Of The Neogene Oil Shale Of Zhangcun Formation, Qinshui Basin, Liu Yanhai, Li Kunjie, Liu Dongna, Xue Shubin, Liu Yangfe, Chu Yonghui Oct 2020

Evaluation And Analysis Of Paleoenvironments Of The Neogene Oil Shale Of Zhangcun Formation, Qinshui Basin, Liu Yanhai, Li Kunjie, Liu Dongna, Xue Shubin, Liu Yangfe, Chu Yonghui

Coal Geology & Exploration

In order to deeply analyze the indication of oil shale development characteristics on paleoenvironments and provide theoretical guidance for oil shale resource evaluation, the organic geochemistry and elemental geochemistry characteristics of the Neogene Zhangcun Formation oil shale in the central part of the Qinshui basin were analyzed by Rock-Eval and TOC and the paleoclimate and paleogeographic environments of the depositional period were discussed as well. The results show that the oil shale of Zhangcun Formation has the low oil content which Tar=4.15%, higher hydrocarbon potential, kerogen is of sapropel type(I1), which has relatively shallow burial depth. The element …


Geochemical Characteristics Of Elements In The Paleogene Yunlong Formation And The Restoration Of Paleoenvironment In Lanping Basin, Liu Xiaokang, Zhang Zhibo, Zhu Zhijun, Wu Chuanfu, Wei Xingxing, Liu Haiyan, Jin Tengrui, Baima Quzong Aug 2020

Geochemical Characteristics Of Elements In The Paleogene Yunlong Formation And The Restoration Of Paleoenvironment In Lanping Basin, Liu Xiaokang, Zhang Zhibo, Zhu Zhijun, Wu Chuanfu, Wei Xingxing, Liu Haiyan, Jin Tengrui, Baima Quzong

Coal Geology & Exploration

In order to restore the sedimentary environment of the Paleogene Yunlong Formation in the Lanping basin, inductively coupled plasma mass spectrometry(ICP-MS) was used to analyze trace elements in 13 samples of gypsum, limestone, gypsum mud, mudstone and sandstone from the Paleogene Yunlong Formation in Lanping Basin. The sedimentary environments and paleoclimate are estimated based on the spider diagram of trace elements in each lithology and the characteristics of the ratio of Cu/Zn, Sr/Cu and Sr/Ba and the content of Sr. The results show that:gypsum, limestone, gypsum mud, mudstone and sandstone are all rich in Rb, Pb, Zr; gypsum and gypsum …


Rare Earth Element Contents, Geochemistry Of Soil Samples Between Burdur And Isparta Region And Assessment Of Their Origin, Ebru Tat, Mustafa Gürhan Yalçin Aug 2020

Rare Earth Element Contents, Geochemistry Of Soil Samples Between Burdur And Isparta Region And Assessment Of Their Origin, Ebru Tat, Mustafa Gürhan Yalçin

Bulletin of the Mineral Research and Exploration

This study was carried out in 5 locations between Burdur and Isparta in the inner southern part of Isparta Bend. The study aims to determine the rare earth element (REE) concentrations in the soil samples collected from the field and to interpret the origin of the high concentrations detected. In this context, a total of 104 samples were collected from Canakli Village (19 samples), Cobanisa Village (34 samples), Kuyubasi Village (17 samples), Kuzca Village (17 samples), and Yilanli Village (17 samples) in the study field. The average ∑REE (La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, …


Geochemical And Industrial Properties Of The Kejal Kaolin Deposit, Nw Iran, Tohid Nouri, Rahim Masoumi Jan 2020

Geochemical And Industrial Properties Of The Kejal Kaolin Deposit, Nw Iran, Tohid Nouri, Rahim Masoumi

Turkish Journal of Earth Sciences

The Kejal kaolin deposit, situated in the northwest of Iran, is considered a small part of the Hashtjin hydrothermal zone. The kaolinization process in this deposit has occurred in ignimbritic and volcanic tuff parent rocks in different grades such that severely kaolinized samples can be found in the middle section of the kaolinization profile. Kaolinite is the most abundant clay mineral in the studied samples. Quartz and cristobalite are the main minerals while anatase is the minor mineral of the kaolin samples. Among the major oxides, SiO2, Al2O3, and TiO2 show the highest concentrations in kaolin samples. The mass change …


Geochemistry And Petrography Of Beach Sands Along The Western Coast Of Ghana:Implications For Provenance And Tectonic Settings, Mahamuda Abu, Emmanuel Daanoba Sunkari Jan 2020

Geochemistry And Petrography Of Beach Sands Along The Western Coast Of Ghana:Implications For Provenance And Tectonic Settings, Mahamuda Abu, Emmanuel Daanoba Sunkari

Turkish Journal of Earth Sciences

The paleoweathering, provenance, and tectonic setting of sediments of the western coast of Ghana were unraveled using the geochemistry of 29 beach sands, which are characterized by coarse-, medium-, and fine-grained sizes. The coarse-grained beach sands contain higher SiO2 content (2.9-96 wt.%) than the medium-grained (4.9-94 wt.%) and fine-grained (16.1-90.7 wt.%) sands, implying that the increase in grain size is related to the increase in SiO2 content. Al2O3 and CaO concentrations are higher in the fine- and medium-grained sands than the coarse-grained sands. The beach sands are compositionally immature based on the index of compositional variable values (1.17-141) and Th/Sc …


Mineralogical, Petrographic, And Geochemical Characterization Of Colored İscehisarmarbles (Afyonkarahisar, W-Turkey), Meti̇n Bağci Jan 2020

Mineralogical, Petrographic, And Geochemical Characterization Of Colored İscehisarmarbles (Afyonkarahisar, W-Turkey), Meti̇n Bağci

Turkish Journal of Earth Sciences

The İscehisar marbles are located 25 km northeast of Afyonkarahisar on the Ankara highway in the vicinity of the town of İscehisar. These marbles have economic importance in the Afyon region. The purpose of this study was to reveal the mineralogical, petrographic, and geochemical characteristics of the İscehisar marbles, displaying different colors, structures, textures, and other different features. Based on polarized light microscopy investigations, the İscehisar marbles can be classified into 3 subgroups: from bottom to top 1) calcitic marbles composed of calcite minerals, 2) transition/interlayer marbles, and 3) dolomitic marbles. According to the field descriptions, each subgroup has various …