Results 171 to 180 of about 818,473 (313)

Climate-driven marine silicate weathering off Peru [PDF]

Goldschmidt2021 abstracts, 2021
Patricia Grasse, Sonja Geilert, Dieter Garbe-Schönberg, Andew Dale, Stefan Sommer   +4 more
openaire   +1 more source

Application of RMR89–NATM Rock Mass Classification for Tunnel Design: A Case Study From Bilaspur, Himachal Pradesh, India

Engineering Reports, Volume 8, Issue 3, March 2026.
The Bilaspur region lies in a highly seismic zone, requiring special attention for infrastructure development like tunnel construction. Rock strength in the area is low, posing challenges for stable tunnel design. RMR values range from 21 to 30, categorizing the rock mass as Poor, requiring robust support measures.
Baalamurugan Arumugam, Selvam Sekar, Muthukumar Perumal, Jesuraja Kamaraj, Muralitharan Jothimani   +4 more
wiley   +1 more source

The dual role of fracturing and elevation on the development of the weathering profile in mafic landscapes of the Andean tropics

Earth Surface Processes and Landforms, Volume 51, Issue 3, March 2026.
Eighteen boreholes in Colombia's Tropical Andes reveal elevation‐controlled Critical Zone architecture. Four‐layer weathering profiles with thick saprolite (≤48 m) form at high elevations (>1,100 m) where dense fracturing enhances permeability. Low‐elevation boreholes lack saprolite despite high fracture density, demonstrating fracturing's dual role as
Helbert Garcia‐Delgado, Gregory D. Hoke, Nicolás Pérez‐Consuegra   +2 more
wiley   +1 more source

The Neolithic Site of Piano dei Cardoni in the Island of Ustica (Italy): Minero‐Petrographic and Chemical Characterization of the Ceramic Finds and Clayey Raw Materials

Geoarchaeology, Volume 41, Issue 2, March/April 2026.
ABSTRACT This paper presents the results of minero‐petrographic and chemical analyses of pottery and potential local raw materials from Ustica, a small volcanic island off the coast of Palermo (Sicily), inhabited during the Middle Neolithic. Typologically, the pottery shows cultural connections to the Bicromica and Serra d'Alto traditions, linking ...
G. Montana, C. Speciale, G. Battaglia, L. Randazzo, G. Carnevale, M. V. Antonopoulou, A. Magrì   +6 more
wiley   +1 more source

Early Use of Lime Mortar at the Early Iron Age Piscina Torta Salt Production Site (Tiber Delta, Ostia, Italy)

Geoarchaeology, Volume 41, Issue 2, March/April 2026.
ABSTRACT This study presents new evidence for the early use of lime mortar during the Early Iron Age at the Piscina Torta site (Ostia, Italy), situated on the earliest Holocene beach ridges in the southern Tiber delta. The site, which was earlier described as a briquetage site, dates from between the late 8th and 6th century BCE and consists of a large
Francesca Bulian, Jan Sevink, Patrick Degryse, Matilde Quilici, Luca Alessandri, Peter Attema   +5 more
wiley   +1 more source

Neoarchean Arc Magmatism and Crust Recycling in the Northern Marginal Zone of the Limpopo Complex, Zimbabwe: New Insights From Zircon U‐Pb‐Hf Isotopes of a Charnockite Suite

Geological Journal, Volume 61, Issue 3, Page 566-592, March 2026.
Charnockites with 2691–2607 Ma magmatic ages from the NMZ show arc‐magmatic geochemical signatures. They correspond to the lower‐crustal equivalent of the Chilimanzi Suite Granite in the Zimbabwe Craton. Lu‐Hf isotopic data of magmatic zircons show negative εHf(t) values (−11.18 to −2.20) with TDMC ages of 3699–3158 Ma, suggesting their protolith ...
Toshiaki Tsunogae, Md. Sazzadur Rahman, Gao Pin, M. Santosh, Wataru Fujisaki, Sam Uthup, Prince Mandingaisa   +6 more
wiley   +1 more source

Seasonal Dynamics of Riverine Inputs in Guadeloupe (French West Indies): Insights From More Than 12 Years of Monitoring

Hydrological Processes, Volume 40, Issue 3, March 2026.
Riverine solute fluxes peak during the wet season, emphasising the role of tropical rainfall in driving nutrient delivery to the ocean. Seasonal peaks in nutrient fluxes highlight the need for longer‐term monitoring to detect potential interannual trends.
Emma Moreau, Marie Boye, Céline Dessert
wiley   +1 more source

Anthropogenic interference and climatic change control long‐term dissolved silicate variation in the Yellow River

Limnology and Oceanography Letters, Volume 11, Issue 2, March 2026.
Abstract Dissolved silicate (DSi) export from rivers is shaped by both natural processes and human activities. Using long‐term observations at Lijin station combined with chemical weathering and reservoir silicon cycling models, we reconstructed annual DSi fluxes and source‐sink dynamics in the Yellow River Basin since the 1980s.
Ke Wang, Fuxia Yang, Tiezhu Mi, Zhigang Yu, Hongtao Chen, Qingzhen Yao   +5 more
wiley   +1 more source

Synergistic Effects of a Microbial Amendment and Crushed Basalt: Soil Geochemical and Microbial Responses. [PDF]

Glob Chang Biol
Yang YY, Bueno de Mesquita CP, Lawrence CR, Weyman PD, Dores D, Timmermann T, Fierer N, Fuenzalida-Meriz GA.   +7 more
europepmc   +1 more source

A Systematic Approach to Field Testing of Biological Products for Horticulture Is Required to Improve Food Security

Journal of Sustainable Agriculture and Environment, Volume 5, Issue 1, March 2026.
ABSTRACT Food security challenges require immediate action to increase food production. Many biological products derived from plant, animal or microbial sources claim they sustainably increase yield, but there are concerns about biosecurity to be investigated before their introduction to the field.
Kay Howard, Kirsty L. Bayliss
wiley   +1 more source