Results 91 to 100 of about 18,367 (247)
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
Badlands and environmental change [PDF]
Geographica HelveticaBadlands develop in many climatic regions, on a wide range of soils and in various bedrock types. The physical triggers for development of badlands can be natural, such are tectonic activity and climate change, but more frequently they are human induced,
M. Kasanin-Grubin
doaj +1 more source
Fired products of Cr-smectite clays in nitrogen [PDF]
, 2020 The products of Cr-smectite clays heated to 1350 °C in nitrogen were evaluated by X-ray diffraction and chemical analysis. Cr-smectite clays were prepared at room temperature by contact between smectite clays and Cr species contained in OH-Cr solutions ...
Volzone, Cristina, Cesio, A. M.
core
Experimental study of smectite interaction with metal iron at low temperature: 1. Smectite destabilization. [PDF]
, 2005 Interaction between metal Fe and a variety of natural and synthetic smectite samples with contrasting crystal chemistry was studied by scanning electron microscopy and X-ray diffraction from experiments conducted at 80°C. These experiments demonstrate an
Bauer, A. +11 more
core +1 more source
Selected Physical and Geotechnical Properties of Loess in Wairarapa Valley, New Zealand
New Zealand Journal of Geology and Geophysics, Volume 69, Issue 4, December 2026.Loess up to 10 m thick covers marine terraces, old river aggradation terraces, and gentle hill country slopes in Wairarapa, New Zealand. In the drier eastern and southern parts of Wairarapa, the loess is subject to dry summer and autumn and wet winter and spring in most years.
Alan S. Palmer
wiley +1 more source
SİVRİHİSAR KUZEY DOĞUSUNDAKİ (MÜLK-DEMİRCİ) NEOJEN YAŞLI VOLKANİKLERDE KİL MİNERALLEŞMESİ
Bulletin of the Mineral Research and Exploration, 2007 Mülk-Demirci yöresinde (KD Sivrihisar) yer alan Neojen yaşlı gölsel birimler; kırıntılı-evaporitik çökeller ile volkanik ve piroklastiklerden oluşmaktadır.
Zehra KARAKAŞ +2 more
doaj
Automated Ultrafiltration Device for Environmental Nanoparticle Research and Implications: A Review
Micromachines, 2013 Nanoparticle research and development have brought significant breakthroughs in many areas of basic and applied sciences. However, efficiently collecting nanoparticles in large quantities in pure and natural systems is a major challenge in nanoscience ...
Ming K. Wang +4 more
doaj +1 more source
Hydrothermal synthesis of smectite from dickite [PDF]
, 2006 Dioctahedral smectite was prepared hydrothermally from dickite [AlSiO(OH)] as a starting material by autoclaving in a closed stainless steel vessel with variable temperature, pressure, time and pH conditions.
Chae, Soo-Chun +4 more
core +1 more source
In-operando X-ray scattering characterization of smectite swelling experiments
, 2023 International audienceSwelling capacity of smectite was studied over decades regarding its application as barrier in disposal of nuclear wastes in geological repositories as well as the induced volume change potential in soils according to moisture.
Raimbourg, Hugues +13 more
core +1 more source
Revisiting the synthesis of dimethyl carbonate from methanol and carbon dioxide
The Canadian Journal of Chemical Engineering, Volume 104, Issue 11, Page 5954-5978, November 2026.Abstract The process for producing dimethyl carbonate (DMC) from carbon dioxide (CO2) and methanol is explored in this article. It provides an overview of the thermodynamics involved in DMC synthesis, discussing the challenges and potential solutions. The article highlights the reported use of catalysts and dehydrating agents to improve DMC yield and ...
Diego Alexander Santos Araque +3 more
wiley +1 more source