Results 11 to 20 of about 214,232 (320)

Mineralogical and elemental geochemical characteristics of Taodonggou Group mudstone in the Taibei Sag, Turpan–Hami Basin: implication for its formation mechanism [PDF]

Solid Earth, 2023
Organic matter types in the Taodonggou Group mudstone exhibit significant differences with depth. In order to understand the formation mechanism of this special phenomenon, we analyzed the mineralogy and geochemistry of the mudstone, as well as the ...
H. Miao, H. Miao, J. Guo, Y. Wang, Z. Jiang, Z. Jiang, C. Zhang, C. Zhang, C. Li, C. Li   +9 more
doaj   +1 more source

Content and distribution of mercury in coal and its relation to depositional environment—A case study on coals from the Shanxi Formation in Huainan Coalfield

Frontiers in Earth Science, 2023
Mercury in coals might emit into the environment from coal combination, and finally cause environmental pollution. In this paper, 26 coal samples were selected from No.
Liugen Zheng, Liugen Zheng, Liqun Zhang, Liqun Zhang, Yunlong Wang, Yunlong Wang, Yeyu Chen, Yeyu Chen, Yongchun Chen, Shikai An, Yanfei Xu   +10 more
doaj   +1 more source

Sequence stratigraphy of the Middle Jurassic Yan’an Formation (NE Ordos Basin, China), relationship with climate conditions and basin evolution, and coal maceral’s characteristics

Frontiers in Earth Science, 2023
The Yan’an Formation of the Ordos Basin in North China is among the largest and most extensively studied Jurassic coal reservoirs in the world. The lacustrine Yan’an Formation was investigated near Dongsheng (Ordos Basin, China) in its sequence ...
Dawei Lv, Dawei Lv, Yangyang Shen, A. J. Tom van Loon, Munira Raji, Zhihui Zhang, Guangzeng Song, Zhouhe Ren, Yujia Wang, Dongdong Wang   +9 more
doaj   +1 more source

Sedimentary Facies and Palynological Studies of Ajali Sandstones Formation Outcropping in Idah, Northern Anambra Basin, Nigeria

Journal of Applied Sciences and Environmental Management, 2023
The paleo-depositional environment of the Maastrichtian Ajali Sandstone Formation of the Anambra Basin has remained controversial as numerous studies have inferred differing origins of the sedimentary unit. This study presents analytical evidence on the
T. S. Alege, T. O. Tella, G. O. Aigbadon, J. I. Omada   +3 more
doaj   +1 more source

LARGE FORAMINIFERA FROM LIMESTONE IN THE RAJAMANDALA FORMATION, SUKABUMI, WEST JAVA [PDF]

Malaysian Journal of Geosciences, 2021
Rajamandala Formation is a limestone reef formation that is exposed in the Rajamandala – Sukabumi area, West Java. Different from those in the Rajamandala area, this formation which is located in the Sukabumi area is still rarely analyzed, especially ...
Rizki Satria Rachman, Winantris
doaj   +1 more source

Study on the Mineralogical and Geochemical Characteristics of Arsenic in Permian Coals: Focusing on the Coalfields of Shanxi Formation in Northern China

Energies, 2022
The Huainan Coalfield is a typical multi-coal seam coalfield. In order to systematically investigate the distribution, occurrence, and integration of arsenic (As) in Shanxi coal, 26 coal samples and three rock samples were collected in the No.
Liqun Zhang, Liugen Zheng, Meng Liu
doaj   +1 more source

Microfacies Analysis and Depositional Environment of Middle Jurassic Samana Suk Formation, Chichali Nala Section, Surghar Range, Pakistan.

International Journal of Economic and Environment Geology, 2021
The Middle Jurassic age Samana Suk Formation, exposed in Chichali Nala section of Surghar ranges has been investigated by field work, petrographic study and XRD analysis to understand the microfacies, depositional environment and fault related ...
Imran Ahmad, Said Mukhtar Ahmad, Matee Ullah, Aurangzeb ., Syed Muhammad Waseem Sajjad, NAzir Ul Islam
doaj   +1 more source

Electroplating based engineering of plasmonic nanorod metamaterials for biosensing applications [PDF]

, 2022
Sensing lower molecular weight in a diluted solution using a label-free biosensor is challenging and requires a miniaturized plasmonic structure, e.g., a vertical Au nanorod (AuNR) array based metamaterials. The sensitivity of a sensor mainly depends on transducer properties and hence for instance, the AuNR array geometry requires optimization ...
arxiv   +1 more source

Geochemistry of Sub-Depositional Environments in Estuarine Sediments: Development of an Approach to Predict Palaeo-Environments from Holocene Cores

Geosciences, 2022
In the quest to use modern analogues to understand clay mineral distribution patterns to better predict clay mineral occurrence in ancient and deeply buried sandstones, it has been necessary to define palaeo sub-environments from cores through modern ...
Dahiru D. Muhammed, Naboth Simon, James E. P. Utley, Iris T. E. Verhagen, Robert A. Duller, Joshua Griffiths, Luke J. Wooldridge, Richard H. Worden   +7 more
doaj   +1 more source

IMPLICATION OF RESERVOIR CHARACTERISTICS BASED ON OVERVIEW OF STRUCTURE AND SEDIMENTOLOGY OF OUTCROPS ALONG BINTULU-NIAH-MIRI AREAS [PDF]

Malaysian Journal of Geosciences, 2019
Six-day fieldwork was conducted in the north-west coast of Sarawak to examine the outcrops along Bintulu- Niah- Miri areas which cover southern part of Balingian Province and Baram Delta Province.
Jong E Cheng
doaj   +1 more source