نتایج جستجو برای: geochemical characteristics

تعداد نتایج: 670747  

Journal: :Frontiers in Earth Science 2022

There is increasingly valued attention on whether the matter and energy carried in deep fluids can significantly change hydrocarbon (HC) generation of low-mature source rocks. Previous studies suggest that upward movement to sedimentary basins will HC evolution mode rocks, by fluid transform process as transient events. However, there a lack quantitative evaluation specific changes gaseous modi...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2012
Steffen Leth Jorgensen Bjarte Hannisdal Anders Lanzén Tamara Baumberger Kristin Flesland Rita Fonseca Lise Ovreås Ida H Steen Ingunn H Thorseth Rolf B Pedersen Christa Schleper

Microbial communities and their associated metabolic activity in marine sediments have a profound impact on global biogeochemical cycles. Their composition and structure are attributed to geochemical and physical factors, but finding direct correlations has remained a challenge. Here we show a significant statistical relationship between variation in geochemical composition and prokaryotic comm...

Journal: :journal of mining and environment 2015
h. shahi r. ghavami riabi a. kamkar ruhani h. asadi haroni

in this research work, the frequency domain (fd) of surface geochemical data was analyzed to decompose the complex geochemical patterns related to different depths of the mineral deposit. in order to predict the variation in mineralization in the depth and identify the deep geochemical anomalies and blind mineralization using the surface geochemical data for the dalli cu-au porphyry deposit, a ...

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