Results 31 to 40 of about 10,100 (172)
Abstract The majority of geothermal energy is produced in tectonically active volcanic‐arc regions due to their high geothermal gradients. Reservoirs in these settings are often stratified with smectite/kaolinite‐, illite‐, and chlorite‐rich zones, in order of increasing depth and temperature. Eighteen andesitic core and surface samples were taken from
Barnaby Fryer +7 more
wiley +1 more source
Abstract Natural radiogenic isotopes (primarily 87Sr/86Sr) from hot springs in the Upper Geyser Basin of the Yellowstone Plateau volcanic field and associated rocks were used to evaluate groundwater flow patterns, water‐rock reactions, and the extent of mixing between various groundwater sources.
James B. Paces +4 more
wiley +1 more source
Algunas anotaciones sobre la importancia del cobre en la reproducción bovina
En esta breve revisión de tema se resumió información relacionada con algunas funciones del cobre en bovinos, sus requerimientos, deficiencias, toxicidad, efectos sobre la reproducción y algunos métodos de suplementación. También se abordó la importancia
Jorge Gómez Rendón +2 more
doaj +1 more source
The upper catchment of the Claro river in the central Chilean Andes is described in terms of volcanic and glacial landforms seeking to establish a relative chronology associated to events during the late Pleistocene and Holocene, which is summarized in seven phases and presented as a conceptual model.
Paulina Mejías Osorio +3 more
wiley +1 more source
Control de dióxido de azufre en fuentes fijas [PDF]
Los óxidos de azufre (SOx) son contaminantes primarios que se emiten a la atmós¬fera desde fuentes fijas principalmente en forma de dióxido de azufre (SO₂) y de trióxido de azufre (SO₃).
González-Cardoso, Griselda;# +3 more
core
Alteration of the tree–soil microbial system triggers a feedback loop that boosts holm oak decline
Read the free Plain Language Summary for this article on the Journal blog. Abstract In anthropic savanna ecosystems from the Iberian Peninsula (i.e. dehesa), complex interactions between climate change, pathogen outbreaks and human land use are presumed to be behind the observed increase in holm oak decline.
Manuel Encinas‐Valero +10 more
wiley +1 more source
Se trabaja con una serie de diez redondos de aceros inoxidables tipo AISI 303 de composiciones químicas prácticamente iguales a excepción del azufre que varía entre 0,25 y 0,36%.
J. Botella +3 more
doaj +1 more source
Hydrothermal geochemical signatures in outcropping rock samples of the super‐hot Los Humeros geothermal field were discovered by using an integrated geochemometric study of the mobility of components (major oxides) and trace elements. Chemical component and element mobilities were determined by using the Gresens–Grant equation for mass balances.
D. Yáñez-Dávila +7 more
wiley +1 more source
Background: Passion fruit (Passiflora edulis S.) is a tropical fruit of socio-economic interest in Peru, used as an ingredient in the food industry, esthetics and medicine.
Madai Ruesta-López +9 more
doaj +1 more source
The Use of Bromeliads as Biomonitors of Air Quality: A Global Review
Air pollution is a global problem in urban and rural areas, mainly related to vehicular traffic and industrial activities. Bromeliads have been widely used globally for active and passive air quality monitoring. However, a systematic review to facilitate the access and analysis of this information is yet to be made available. The objective of this work
Ángel Benítez +5 more
wiley +1 more source

