Results 111 to 120 of about 18,144 (245)

Chemical weathering of the volcanic soils of Isla Santa Cruz (Galápagos Islands, Ecuador) [PDF]

, 2014
We present a study on weathering of volcanic soils using 43 profiles (131 horizons) sampled in Santa Cruz Island (Galapagos Islands). Several weathering indices, based on chemical composition, are used. Since the geological material is highly homogeneous
Ferro, C, Martínez-Cortízas, A, Rodríguez-Lado, L, Stoops, Georges, Taboada, T   +4 more
core   +1 more source

OSL-dating of the Pleistocene-Holocene climatic transition in loess from China, Europe and North America, and evidence for accretionary pedogenesis

, 2021
D. Constantin, J. Mason, D. Veres, U. Hambach, C. Panaiotu, C. Zeeden, Liping Zhou, S. Marković, N. Gerasimenko, A. Avram, Viorica Tecsa, S. Groza-Săcaciu, L. D. V. Villalonga, R. Begy, A. Timar-Gabor   +14 more
semanticscholar   +1 more source

The 'Maagdentoren' of Zichem (Belgium) : damage assessment of ferruginous sandstone by X-ray tomography [PDF]

, 2010
The ferruginous sandstone of the gothic “Maagdentoren” is suffering from a specific biological deterioration process triggered by perforating activities of mason bees.
Boone, Matthieu, Cnudde, Veerle, De Clercq, Hilde, Dusar, Michiel, Hayen, Roald   +4 more
core   +1 more source

Proximate controls on semiarid soil greenhouse gas fluxes across 3 million years of soil development [PDF]

, 2015
Soils are important sources and sinks of three greenhouse gases (GHGs): carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O). However, it is unknown whether semiarid landscapes are important contributors to global fluxes of these gases, partly ...
Hart, SC, Hungate, BA, Nasto, MK, Sullivan, BW   +3 more
core   +1 more source

Vegetation cycles in a disturbed sequence around the Cobb-Mountain subchron in Catalonia [PDF]

, 2008
A 52 m-long lacustrine sequence has been recovered from the basin of Bòbila-Ordis, near Banyoles (N-E Spain). The presence of Early Biharian rodent teeth (Early Pleistocene) and of a c.
Leroy, SAG
core  

Iron Composition of a Typical Loess-Paleosol Sequence in Northeast China

Agronomy
Iron isotope compositions, along with the partial extraction of iron in its various forms, can be utilized to investigate the complex interplay of iron migration and transformation with respect to iron isotope patterns.
Zhong-Xiu Sun, Si-Wei Liu, Ying-Ying Jiang   +2 more
doaj   +1 more source

Related distribution patterns in soils and their significance [PDF]

, 1976
14 páginas.-- 2 figuras.-- 2 imágenes.-- 6 referenciasRelated distribution patterns are important micromorphological parameters for pedogenetical studies.
Baños Moreno, Clemente, Eswaran, H.
core  

Impactos de la actividad volcánica en época prehispánica: Estudios edáficos en los sitios arqueológicos de Cerro del Teúl y El Pitayo, Tres Mezquites en el occidente de México

Geofísica Internacional
Volcanic activity in ancient Mesoamerica was decisive for many populations since it influenced daily life and the way of understanding the world.
Thania Alejandra García Zeferino, Elizabeth Solleiro Rebolledo, Héctor Víctor Cabadas Báez, Sergey Sedov, Serafín Sánchez Pérez, Veronique Darras, Laura Solar Valverde, Luis Octavio Martínez Méndez, Peter Jiménez Betts   +8 more
doaj   +1 more source

Allelopathic effect of the Cladonia verticillaris lichen extracts and fumarprotocetraric acid on the early growth of germinated seedlings in Allium cepa L. [PDF]

, 1999
The allelopathic activity of the different type of Cladonia verticillaris lichen extracts and fumarprotocetraric acid on the early growth of A. cepa (IPA 6) germinated seedlings depends on their chemical composition and concentration, respectively.
Vicente, Carlos, Xavier- Filho, L., Yano-Melo, Adriana M.   +2 more
core  

Llamas (Llama glama) enhance proglacial ecosystem development in Cordillera Blanca, Peru. [PDF]

Sci Rep, 2023
Zimmer A, Beach T, Riva Regalado S, Salcedo Aliaga J, Cruz Encarnación R, Anthelme F.   +5 more
europepmc   +1 more source