Results 101 to 110 of about 405,811 (188)
Terra Nova, EarlyView.ABSTRACT Thin, discontinuous, organic‐rich oil shale beds in the siliciclastic‐evaporitic Salt Range Formation (SRF) of Pakistan are of approximate Neoproterozoic to Cambrian age based on stratigraphic constraints. The beds are enriched (26–43 wt.% total organic carbon, TOC) in aliphatic organic matter (OM) of low thermal maturity despite their ...
Paul C. Hackley +4 more
wiley +1 more source
Journal of Applied VolcanologyA global network of Volcanic Ash Advisory Centres (VAACs) provides advice and guidance to the aviation industry on the presence of volcanic ash in the atmosphere, to support their decision-making on flight safety.
Frances M. Beckett +10 more
doaj +1 more source
The role of airborne volcanic ash for the surface ocean biogeochemical iron-cycle: a review [PDF]
Biogeosciences, 2010 Iron is a key micronutrient for phytoplankton growth in the surface ocean. Yet the significance of volcanism for the marine biogeochemical iron-cycle is poorly constrained.
S. Duggen +6 more
doaj
Recent Advances in Boron Removal From Geothermal Waters: A Review
Water and Environment Journal, EarlyView.This review provides a comprehensive overview of boron removal technologies from geothermal fluids and highlights the limitations of conventional treatment methods. Ion exchange, hybrid processes and membrane filtration are identified as the most dominant approaches in recent studies.
Saadet Acar Can, Hasan Koseoglu
wiley +1 more source
Communications Earth & EnvironmentVolcanic eruptions are major perturbations to Earth’s biogeochemical cycles, yet their long-term effects on nutrient dynamics and ecosystem recovery remain unclear.
Kun Zhang +9 more
doaj +1 more source
Characterization of volcanic ash from 2010 Mt Merapi, Indonesia eruption by neutron activation analysis and leaching analysis [PDF]
, 2013 textThis research was able to identify a wide range of elements present in fresh volcanic ash from a 2010 eruption in Indonesia using varied instrumental neutron activation analysis techniques.
Canion, Bonnie Elise
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Clay mineralogy of tephras and associated paleosols and soils, and hydrothermal deposits, North Island [New Zealand] [PDF]
, 1993 Tour themes and itinerary The tour centres on the occurrence and genesis of clay minerals, especially allophane, halloysite, and ferrihydrite, associated with both Quaternary rhyolitic airfall tephra (volcanic ash) deposits and volcanogenic alluvium ...
Lowe, David J., Percival, H.J.
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یافتههای نوین در علوم زیستی, 2020 The purpose of this study was to investigate the effect of Damavand volcanic ash on the morphological and physiological characteristics of beans as a factorial experiment in a completely randomized design.
Roghayeh Heydari +2 more
doaj
Volcanogenic Sulfate and Fluoride deposition: Effects on organic and mineral soil gas fluxes and chemistry [PDF]
, 2011 This thesis focuses on the environmental effects of volcanic eruptions such as Eyjafjallajökull (2010) from which volcanic gases and ash particles can impact upon ecosystems located thousands of kilometres from the source. Currently very little is known
Myers, Nicola
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