Results 1 to 10 of about 14,182 (195)

(Acidic deposition and the environment) [PDF]

open access: green, 1990
The travelers presented several papers at the Fourth International Conference on Acidic Deposition. These covered the following topics: atmospheric chemistry and deposition of airborne nitrogen compounds, soil solution chemistry in high-elevation spruce forests, and forest throughfall measurements for estimating total sulfur deposition to ecosystems ...
Charles T. Garten   +2 more
openalex   +4 more sources

Seismic stratigraphy and evolution of mesozoic deposits in the central Arabian basin. [PDF]

open access: yesSci Rep
The Central Arabian Basin is a sedimentary basin that contains a significant number of hydrocarbon reserves. In addition, the Mesozoic succession has the most petroleum system elements.
Harishidayat D   +2 more
europepmc   +2 more sources

TOWARDS AN UNDERSTANDING OF THE INTERACTION OF HAIR WITH THE DEPOSITIONAL ENVIRONMENT

open access: goldChungará (Arica), 2001
Existe un gran interes en el uso analitico del pelo humano de contextos arqueologicos en areas claves de investigacion como los analisis de ADN, elementos traza e isotopos. Otros tejidos humanos, especialmente el hueso, que han sido usados para los analisis de ADN, elementos quimicos e isotopos, han sido estudiados en relacion a su diagenesis, pero ...
A. S. Wilson   +6 more
openalex   +5 more sources

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

open access: yesSolid 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   +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

open access: yesFrontiers 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   +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

open access: yesFrontiers 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   +9 more
doaj   +1 more source

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

open access: yesJournal 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   +3 more
doaj   +1 more source

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

open access: yesMalaysian 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

open access: yesEnergies, 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

Relationship between depositional environments and preservabilities of Holocene tsunami deposits on the Hidaka coast, Hokkaido, Japan

open access: yesQuaternary Science Advances, 2023
Rising sea levels and associated coastal topography changes are expected to increase coastal vulnerability to tsunamis. Reliable records of the periodicity of the most damaging tsunamis, with recurrence intervals of several centuries, are often ...
Ryo Nakanishi   +3 more
doaj   +1 more source

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