Results 181 to 190 of about 26,237 (314)

Experimental Investigation of Moisture Movement During Freeze–Thaw Cycles and Its Effect on Physical Rock Weathering in Low‐Porosity Alpine Limestone

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT The progressive weakening of alpine rockwalls through subcritical cracking, driven by repeated low‐magnitude stress processes, plays a key role in alpine rock weathering. Laboratory studies using acoustic emission (AE) monitoring have shown that thermal stresses from freeze–thaw cycling induce crack propagation, with recent work highlighting ...
Andrew Mitchell, Oliver Sass
wiley   +1 more source

Study on characterization of sandstone pore structure and seepage mechanism based on NMR and CT technology. [PDF]

PLoS One
Zhao S, Liu K, Sun C, Yue W, Wang Q, Xia Y, Wang X.   +6 more
europepmc   +1 more source

Banychi Deposit of Quartz Sandstones

Пісковик родовища є високоякісною сировиною для виробництва кристалічного кремнію. Пісковики за результатами механічного аналізу відносяться до тонкозернистих з великим вмістом глин.
Панасенко Іван Сергійович, Panasenko Ivan Serhiyovych, Горшеніна Світлана Павлівна, Horshenina Svitlana Pavlivna   +3 more
core  

Deciphering Freeze–Thaw Dynamics In Rockwalls: A Novel Approach for High Accuracy Regional‐Scale Modeling

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT Using a large and novel array of instruments on five rockwalls in northern Gaspesia, their respective surface energy balances were calculated and their thermal regimes were measured and modeled to depths exceeding the seasonal frost penetration.
Tom Birien, Francis Gauthier
wiley   +1 more source

Structural and stratigraphic controls on reservoir distribution in the Ptah oil field, Shushan Basin, North Western Desert, Egypt. [PDF]

Sci Rep
Shamia KES, Othman AAA, Fathy M.
europepmc   +1 more source

Multiproxy Chronologies of the Hurd Rock Glacier (Livingston Island, South Shetland Islands, Maritime Antarctica): Between the Late‐Stage Stabilization and Flow Deceleration

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT The Hurd Rock Glacier, located on Livingston Island (South Shetland Islands archipelago, Maritime Antarctica), is a tongue‐shaped feature composed of angular boulders, displaying transverse ridges and furrows, and featuring lobate structures, which are more prominently developed in its frontal sector.
Rosana Menéndez‐Duarte, Jesús Ruiz‐Fernández, Laura Rodríguez‐Rodríguez, José M. Fernández‐Fernández, Vincent Rinterknecht, ASTER Team   +5 more
wiley   +1 more source

A highly diverse Pennsylvanian tetrapod ichnoassemblage from the Semily Formation (Krkonoše Piedmont Basin, Czechia). [PDF]

PeerJ
Calábková G, Březina J, Nádaskay R.
europepmc   +1 more source

Informing the potential of mature temperate forests as natural climate solutions: Changed fine root biomass and morphology under elevated CO2

PLANTS, PEOPLE, PLANET, EarlyView.
The land carbon sink absorbs approximately 25% of anthropogenic CO2 emissions, with forests accounting for most. Managing forests as Natural Climate Solutions is therefore a societal imperative, requiring models of where and how long carbon resides within these ecosystems. We investigated the effects of elevated CO2 on fine roots, the primary source of
Grace Handy, Angeliki Kourmouli, Marie Arnaud, Carolina Mayoral, Richard J. Norby, Michaela K. Reay, Sami Ullah, Iain P. Hartley, R. Liz Hamilton, Robert Grzesik, Andy R. Smith, Elena Vanguelova, A. Rob MacKenzie, Adriane Esquivel‐Muelbert   +13 more
wiley   +1 more source

Geochemistry and detrital zircon U-Pb-Hf isotopic data reveal the provenance and tectonic setting of the Xujiahe Formation. [PDF]

Sci Rep
Xie F, Xiao W, Sami M, Sanislav IV, Han L, Wang Y, Alhejji SS.   +6 more
europepmc   +1 more source

Close‐to‐nature management regulates ecosystem carbon storage through its effects on vegetation community structure in Pinus massoniana plantations

PLANTS, PEOPLE, PLANET, EarlyView.
Forest plantations play an increasingly important role in climate change mitigation through carbon sequestration, yet management strategies that enhance long‐term ecosystem carbon storage remain insufficiently understood. We investigated the effects of more than a decade of close‐to‐nature management on community structure and ecosystem carbon storage ...
Yuwen Luo, Yunliang Ni, Zongzheng Chai
wiley   +1 more source