Results 11 to 20 of about 18,698 (267)

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

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

Velocity-porosity relationships in hydrate-bearing sediments measured from pressure cores, Shenhu Area, South China Sea

open access: yesChina Geology, 2022
: Evaluating velocity-porosity relationships of hydrate-bearing marine sediments is essential for characterizing natural gas hydrates below seafloor as either a potential energy resource or geohazards risks.
Lin Lin   +6 more
doaj   +1 more source

Comparative Study of Methane Hydrate Formation and Dissociation with Hollow Silica and Activated Carbon

open access: yesChemical Engineering Transactions, 2018
Natural gas hydrates are ice-like crystalline compounds and non-stoichiometric, and methane is trapped inside the water cages of the hydrates. In recent years, the hydrates have received much attention for natural gas storage and transportation. However,
Sarocha Rungrussamee   +3 more
doaj   +1 more source

Characteristics and varieties of gases enclathrated in natural gas hydrates retrieved at Lake Baikal

open access: yesScientific Reports, 2023
Molecular and stable isotope compositions of hydrate-bound gases collected from 59 hydrate-bearing sites between 2005 to 2019 in the southern and central sub-basins of Lake Baikal are reported. The δ2H of the hydrate-bound methane is distributed between −
Akihiro Hachikubo   +9 more
doaj   +1 more source

On the thermodynamic stability and structural transition of clathrate hydrates [PDF]

open access: yes, 2005
Gas mixtures of methane and ethane form structure II clathrate hydrates despite the fact that each of pure methane and pure ethane gases forms the structure I hydrate.
Davidson D. W.   +6 more
core   +1 more source

Sodium Dodecyl Sulfate Preferentially Promotes Enclathration of Methane in Mixed Methane-Tetrahydrofuran Hydrates

open access: yesiScience, 2019
Summary: Methane storage in mixed hydrates is advantageous due to faster kinetics and added stability. However, capacity needs to be improved. Here we study mixed hydrates of methane (CH4) and tetrahydrofuran (THF), in the presence of sodium dodecyl ...
Asheesh Kumar   +2 more
doaj   +1 more source

Rising methane gas bubbles form massive hydrate layers at the seafloor [PDF]

open access: yes, 2004
Extensive methane hydrate layers are formed in the near-surface sediments of the Cascadia margin. An undissociated section of such a layer was recovered at the base of a gravity core (i.e.
Haeckel, Matthias   +3 more
core   +1 more source

Significance of the high-pressure properties and structural evolution of gas hydrates for inferring the interior of icy bodies

open access: yesProgress in Earth and Planetary Science, 2023
Hydrogen, methane, and water ice are among the most abundant materials in the universe. Based on experimental, theoretical, and spacecraft data, gas hydrates consisting of gas and water ice have been predicted to exist throughout the universe.
Hisako Hirai, Hirokazu Kadobayashi
doaj   +1 more source

Thermodynamic and geomechanical processes research in the development of gas hydrate deposits in the conditions of the Black Sea [PDF]

open access: yes, 2018
Purpose. Research of thermodynamic and geomechanical processes occurring in a gas hydrate body under the influence of an activating agent (sea water from surface layers) in the conditions of the Black Sea by mathematical modeling using finite element ...
Bondarenko, V   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy