Results 11 to 20 of about 2,148 (218)

Marcasite at the Permian‐Triassic Transition

open access: yesGeophysical Monograph Series, Page 377-399., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Elena Lounejeva   +7 more
wiley  

+7 more sources

Methane gas hydrates of the Black Sea – environmental problem or energy source?

open access: yesJournal of Innovations and Sustainability, 2022
Purpose. The purpose of this paper is to substantiate the technological solution of equilibrium conditions in the system “methane – water phase – hydrate – R-2M”; to reveal existing ecological problems of methane gas hydrate extraction from the Black Sea
Oleksandr Nalyvaiko   +3 more
doaj   +1 more source

Transformations in methane hydrates [PDF]

open access: yesProceedings of the National Academy of Sciences, 2000
Detailed study of pure methane hydrate in a diamond cell with in situ optical, Raman, and x-ray microprobe techniques reveals two previously unknown structures, structure II and structure H, at high pressures. The structure II methane hydrate at 250 MPa has a cubic unit cell of
I M, Chou   +8 more
openaire   +2 more sources

High‐Pressure Na‐Ca Carbonates in the Deep Carbon Cycle

open access: yesGeophysical Monograph Series, Page 127-136., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Sergey Rashchenko   +2 more
wiley  

+7 more sources

Methane Hydrates – Australian perspective [PDF]

open access: yesMining of Mineral Deposits, 2016
We wish to thank Dr. Edward Rravets, Technical Consultant, Rainbow Pty. Ltd., China for his support and encouragement for the work presented here. We also thank Mr. Oleg Pogreb, Technident Pty. Ltd. for his willingness to share his knowledge, information and data on unconventional gas production in Australia.
Koltun, P, Klymenko, V
openaire   +4 more sources

Physical Experiment Research on Dielectric Properties of Hydrate-bearing Sediment in Sandstone Reservoir [PDF]

open access: yesE3S Web of Conferences, 2019
Dielectric constants can be used to detect hydrates in permafrost regions. Therefore, this study investigated the relationships between the dielectric constant characteristics of sandstone reservoir hydrate and the hydrate saturation degree through ...
Du Bing-rui   +4 more
doaj   +1 more source

Effect of ethanol concentration on methane hydrate decomposition: MD simulation insights

open access: yesJournal of Materials Research and Technology, 2021
The controllability of mining is a key factor affecting the commercial application of methane hydrates, and the addition of chemical additives can significantly accelerate the mining process.
Xiaoliang Sun   +9 more
doaj   +1 more source

Influence of Selected Parameters on the Rate Nucleation of Methane Hydrates [PDF]

open access: yesMATEC Web of Conferences, 2020
The demand for energy is growing in the world, and therefore attention has been focused on the use of possible alternative energy sources. For countries with limited access to common hydrocarbon gases, methane hydrates appear to be a potential source of ...
Hečko Dávid   +3 more
doaj   +1 more source

Experimental analysis of the CO2/CH4 Replacement Efficiency due to Sodium Chloride Presence in Natural Gas Hydrates Reservoirs [PDF]

open access: yesE3S Web of Conferences, 2020
Nowadays natural gas hydrates represent a promising opportunity for counteracting several crucial issues of the 21th century. They are a valid answer to the continuously increasing energy demand, moved by the global population growth; moreover ...
Gambelli Alberto Maria   +4 more
doaj   +1 more source

Mining of methane from deposits subaquatic gas hydrates using OTEС [PDF]

open access: yesE3S Web of Conferences, 2021
The article proposes to using Ocean Thermal Energy Conversion (OTEC) to increase the energy efficiency mining of methane from deposits subaquatic gas hydrates on the gas hydrate cycle (GHET), that will allow not to spend 10-15% of the extracted methane ...
Klymenko Vasyl   +4 more
doaj   +1 more source

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