Showing 21 - 32 results of 32 for search '"Cambrian"', query time: 0.04s Refine Results
  1. 21

    MINERAL FORMATION CONDITIONS IN ACID MAGMATIC SYSTEMS RELATED TO THE FORMATION OF MASSIVE SULFIDE DEPOSITS OF THE URALS AND ALTAI-SAYANY AREA by V.A. Simonov, V.V. Maslennikov, A.V. Kotlyarov

    Published 2021-12-01
    “…Our results show the accumulation of Cu in relatively low-H2 O acidic melts of ancient (Cambrian) deposits of the Altai-Sayany region and low metal contents in the intermediate (Silurian–Devonian) and H2 O-saturated magmas of the Urals. …”
    Get full text
    Article
  2. 22

    The Neoproterozoic Ediacaran Kaijiang-Xuanhan paleo-uplift in the Sichuan Basin, Western China by Ran Guo, Ran Guo, Zeqi Li, Jianxue Wu, Shugen Liu, Wei Sun, Peng Wang, Bin Deng, Liwei You, Zhiyi Liu

    Published 2025-01-01
    “…By the late Dengying Formation and early Cambrian, the region experienced a weak extensional state, resulting in the development of the Mianyang-Changning rift, with the main structural orientation being north-northwestward. …”
    Get full text
    Article
  3. 23

    Linear Correlation of Ba and Eu Contents by Hydrothermal Activities: A Case Study in the Hetang Formation, South China by Chao Chang, Qi Fu, Xiaolin Wang

    Published 2019-01-01
    “…A significant linear correlation between Ba and Eu contents has been observed in a set of mudrock formations in the lower Cambrian Hetang Formation in South China. Combined with petrographic features and reinvestigation of published data obtained from the same laboratory, the analytical interference of Ba can be excluded as a main factor of this correlation. …”
    Get full text
    Article
  4. 24

    An Investigation of Fractal Characteristics of Marine Shales in the Southern China from Nitrogen Adsorption Data by Jian Xiong, Xiangjun Liu, Lixi Liang

    Published 2015-01-01
    “…We mainly focus on the Permian, Lower Cambrian, Lower Silurian, and Upper Ordovician Formation; the fractal dimensions of marine shales in southern China were calculated using the FHH fractal model based on the low-pressure nitrogen adsorption analysis. …”
    Get full text
    Article
  5. 25

    Integrated 3D reservoir modelling for the unconventional reservoir prospects: a case study of Upper Cretaceous Brown Limestone reservoir, South Geisum field, Gulf of Suez, Egypt by Mohamed Osman, Sherif Farouk, Mohammad A. Sarhan

    Published 2025-01-01
    “…Abstract The Gulf of Suez basin (GOS) hosts over eighty conventional oilfields spanning from the Pre-Cambrian to the Recent. This research focuses on a segment of the (GOS) sequence within the territories managed by PGM Company. …”
    Get full text
    Article
  6. 26

    The Effect of Water Chemistry on Thermochemical Sulfate Reduction: A Case Study from the Ordovician in the Tazhong Area, Northwest China by Hongxia Li, Chunfang Cai, Lianqi Jia, Chenlu Xu, Ke Zhang

    Published 2017-01-01
    “…Extensive TSR in the Cambrian in the Tazhong area, represented by low SO4/Cl ratios and high H2S and TAs concentrations, is accompanied by formation water with high TDS and Mg concentrations, indicating the effects of water chemistry on TSR under a realistic geological background. …”
    Get full text
    Article
  7. 27

    The Ordovician strata of the Ennedi Plateau, northeastern Chad (Erdi Basin) by Ghienne, Jean-François, Moussa, Abderamane, Saad, Abakar, Djatibeye, Barnabé, Youssouf, Hissein Mahamat

    Published 2023-01-01
    “…In the Ennedi Plateau, northeastern Chad, Cambrian(?)–Ordovician to Carboniferous strata represent one of the most proximal succession of the north-facing Gondwana platform. …”
    Get full text
    Article
  8. 28

    Causes of global extinctions in the history of life: facts and hypotheses by T. M. Khlebodarova, V. A. Likhoshvai

    Published 2020-07-01
    “…In addition, there is evidence of global extinctions in earlier periods of life on Earth – during the Late Cambrian (~500 million years ago) and Ediacaran periods (more than 540 million years ago). …”
    Get full text
    Article
  9. 29

    A Case Study on Preservation Conditions and Influencing Factors of Shale Gas in the Lower Paleozoic Niutitang Formation, Western Hubei and Hunan, Middle Yangtze Region, China by Shengling Jiang, Qinghua Zhou, Yanju Li, Rili Yang

    Published 2024-01-01
    “…The Niutitang Formation of the lower Cambrian (Є1n) is a target reservoir of shale gas widely developed in China’s Middle-Upper Yangtze region, with the characteristics of being widely distributed, having a big thickness and highly organic carbon abundance. …”
    Get full text
    Article
  10. 30

    Diagenetic Processes and Reservoir Heterogeneity in Salt-Encased Microbial Carbonate Reservoirs (Late Neoproterozoic, Oman) by Stephan Becker, Lars Reuning, Joachim E. Amthor, Peter A. Kukla

    Published 2019-01-01
    “…The intrasalt carbonates of the Ediacaran-Early Cambrian Ara Group in the South Oman Salt Basin represent a self-sourcing petroleum system. …”
    Get full text
    Article
  11. 31

    Pore Structure and Its Fractal Dimension: A Case Study of the Marine Shales of the Niutitang Formation in Northwest Hunan, South China by Wei Jiang, Yang Zhang, Tianran Ma, Song Chen, Yang Hu, Qiang Wei, Dingxiang Zhuang

    Published 2025-01-01
    “…To analyze the pore structure and fractal characteristics of marine shale in the lower Cambrian Niutitang Formation in northwestern Hunan Province, China, the pore characteristics of shale were characterized using total organic carbon (TOC) content, field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), low temperature nitrogen adsorption (LT-N<sub>2</sub>GA) and methane adsorption experiments. …”
    Get full text
    Article
  12. 32

    Influence of environmental variables and anthropogenic activities on soda-saline lakes chemistry in northern Tanzania: A remote sensing and GIS approach by Azaria Stephano Lameck, Brian Rotich, Abdalrahman Ahmed, Harison K. Kipkulei, Peto Akos, Emil Boros

    Published 2025-01-01
    “…Furthermore, the region is distinguished by diverse geological processes, from Precambrian-Cambrian to tertiary intrusive, triggered by volcanic and tectonic activity. …”
    Get full text
    Article