Results 71 to 80 of about 86,014 (287)

Geological perspectives on consolidation of clay‐rich marine sediments [PDF]

open access: yesJournal of Geophysical Research: Solid Earth, 2003
Experimental consolidation of uncemented clay‐rich marine sediments provides information concerning their stress history. A main finding is that some of the well‐known behavior of soft sediment deformation in geotechnical applications cannot validly be extrapolated to sediments that have been subjected to higher stresses and longer times of geologic ...
D. E. Karig, M. V. S. Ask
openaire   +1 more source

Multifunctional Tailoring of Fertilizer Composites Directly Derived From Phosphate Rock

open access: yesAdvanced Science, EarlyView.
A novel phosphorus‑sulfur mixed acid with urea (PSU) activation system converts low‑grade phosphate rock (LPR) into multifunctional fertilizer composites (MFCs). MFCs feature porous structures, high nutrient‑activation efficiency, superior slow‑release, and enhanced crop growth, offering a sustainable solution for integrated nutrient management and ...
Zenglian Qi   +13 more
wiley   +1 more source

The oldest stratigraphic record of the Late Cretaceous shark Ptychodus mortoni Agassiz, from Vallecillo, Nuevo León, northeastern Mexico

open access: yesRevista Mexicana de Ciencias Geológicas, 2018
In this paper we report the oldest geologic world record of Ptychodus mortoni, from the Vallecillo Member (Agua Nueva Formation), at Vallecillo, Nuevo León, northeastern Mexico.
Alberto Blanco-Piñón   +2 more
doaj  

Stress‐Induced Melting Controlled Failure Mechanisms of Methane Hydrate

open access: yesAdvanced Science, EarlyView.
We study methane hydrate via nanoindentation and nuclear magnetic resonance (NMR), finding its regional melting and mechanical properties, challenging existing views on hydrogen‐bonded crystals. Abstract Methane hydrate, a kind of nonstoichiometric crystalline, attracted worldwide attentions as a promising substitute energy. Its Dissociation is thought
Yanlong Li   +9 more
wiley   +1 more source

Magnetic properties of bottom sediment from different geological areas

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2006
The specific magnetic properties of bottom sediment from different geological areas were studied. Magnetic susceptibility has been used for observing movement, distribution and accumulation of magnetic minerals in the bottom sediment from rivers and catchment area.
Suteerasak, T., Bhongsuwan, T.
openaire   +2 more sources

Towards Climate Neutrality by 2050: Role of Aluminum for Short‐ and Long‐Term Energy and Hydrogen Storage

open access: yesAdvanced Energy Materials, EarlyView.
The Aluminum energy storage cycle involves the use of renewable energy for Al production and the generation of heat (dry cycle) and heat and H2 (wet cycle) for energy production via Al‐steam combustion. ABSTRACT Reaching climate neutrality by 2050 requires innovative long‐term energy storage (LTES) solutions beyond the current use of fossil fuels ...
Lorenzo Trombetti   +2 more
wiley   +1 more source

A synthesis of available detrital zircon data from the Qilian‐Qaidam‐Kunlun collage, northern Tibet

open access: yesGeoscience Data Journal
In this article, we present a brief introduction to the procedure, methods and results of the collection and summarization of an updated detrital zircon U–Pb geochronology database for the Qilian‐Qaidam‐Kunlun collage in northern Tibet.
Weidong He   +6 more
doaj   +1 more source

Current Landscape: Use of Supercritical CO2 in the Wood Industry

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
The application of supercritical carbon dioxide (scCO2) to successfully dewater as well as extract resin from wood is becoming increasingly popular due to its greener and less energy‐intensive approach. With world focus shifting to developing methods with greater efficiency while decreasing harm to the environment, scCO2 applications have begun to set ...
Anthony Dahdah, Subashani Maniam
wiley   +1 more source

The Geological Survey of Canada sedimentation flume

open access: yes, 1972
A recirculating, tiltable, sedimentation flume has been constructed, primarily for research on fluvial processes, although the apparatus can be adapted easily to studies of lacustrine and certain beach phenomena. The main channel is 18. 3 metres long, O. 76 metres wide, and O. 6 metres deep. A transparent acrylic section 5 metres long exists in each of
openaire   +1 more source

Location of geologic structures from interpretation of ERTS-1 imagery, Carbon County, Wyoming [PDF]

open access: yes
The author has identified the following significant results. Possible geologic structures in the basin sediments of Carbon County and vicinity were located by interpretation of ERTS-1 imagery.
Barton, R., Marrs, R. W.
core   +1 more source

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