Results 71 to 80 of about 5,174 (245)

Marine Isotope Stage 4 glaciation in northern England, UK: Evidence from Victoria Cave, North Yorkshire

Journal of Quaternary Science, EarlyView.
ABSTRACT Victoria Cave, north Yorkshire, England, contains a long sequence of Pleistocene clastic sediments and calcite flowstones. Earlier work, using U–Th dating, established that the flowstone units formed in interglacial stages corresponding to Marine Isotope Stages (MIS) 13, 11, 9, 7 and 5.
Tom C. Lord, Peter Wilson, Joyce Lundberg, Adrian P. Palmer, Matt W. Telfer, Rhiannon E. Stevens, Phillip J. Murphy, Mark Lewis   +7 more
wiley   +1 more source

Farming in the shadows of Rome: A multi‐proxy palaeoenvironmental record from Loch Clunie—Perthshire

Journal of Quaternary Science, EarlyView.
ABSTRACT Roman impacts on local society is a subject of international significance. Loch Clunie, Perthshire, lies only 5.4 km from Inchtuthil, the only Roman legionary fortress in Scotland, and contains two crannogs and a probable lakeside hillfort. Despite this proximity and the likelihood of local–Roman interaction, these sites remain unexcavated ...
Samantha E. Jones, Maarten Blaauw, Fraser Hunter, Olalla López‐Costas, Antonio Martínez Cortizas, Tim M. Mighall, Gordon Noble   +6 more
wiley   +1 more source

Geochemical modeling of diagenetic reactions between albitization of K-feldspar and plagioclase feldspar in sandstone reservoirs under the influence of CO2 partial pressure

Evolving Earth
Diagenetic albitization has been observed in sedimentary basins around the world. This process significantly changes the original composition of sandstones and the chemistry of the formation waters under the influence of partial pressure of CO2.
Marcos Antonio Klunk, Tiago Jonatan Girelli, Soyane Juceli Siqueira Xavier, Farid Chemale, Jr, Renzo D'souza, Mohuli Das, Sudipta Dasgupta   +6 more
doaj   +1 more source

Anaerobic Corrosion Phenomena of Cast Iron and Copper in Artificial Groundwater at Elevated Temperature

Materials and Corrosion, EarlyView.
This study examines corrosion of copper and cast iron as candidate canister materials for high‐level radioactive waste disposal in contact with bentonite suspension. The influence of three electrolyte compositions on corrosion behavior under repository‐relevant conditions is assessed.
Louisa Panjiyar, Martin Ende, Christiane Stephan‐Scherb   +2 more
wiley   +1 more source

Fabrication of a Functional Composite Material Using Waste Concrete Powder and Polyethylene

Polymer Composites, EarlyView.
Preparation and experimental verification of functional composite materials using waste concrete powder and polyethylene. ABSTRACT This study investigated the fabrication of a functional composite material using waste concrete powder (WCP), which is a novel method for effectively utilizing waste concrete.
Yasuyuki Kanda, Tsuguri Kusumoto
wiley   +1 more source

Petrogenesis and tectonic implications of intrusive rocks in the Jiangjunmu porphyry deposit, East Kunlun orogeny, NW China

Frontiers in Earth Science
The newly discovered Jiangjunmu Cu–Au deposits are hosted within granodiorite porphyry and K-feldspar granite of the East Kunlun metallogenic belt. Previous understanding of these deposits has been limited due to a lack of comprehensive isotopic data. To
Yu Junzhen, Yu Junzhen, Li Dexian, Li Dexian, Gao Yalin, Gao Yalin, Ma Bo, Ma Bo, Zheng Youye, Zheng Youye, Zheng Youye, Junaid Khan, Asma Tahir   +12 more
doaj   +1 more source

From Waste to Value: A Data‐Driven Framework for Sustainable Raw Materials Substitution in the Ceramic Industry

Sustainable Development, EarlyView.
ABSTRACT With increasing geopolitical risks, environmental pressures, and regulatory demands, the sustainable sourcing of raw materials has become a global priority for achieving the United Nations Sustainable Development Goals (SDGs), particularly SDG 9 (Industry, Innovation and Infrastructure), SDG 12 (Responsible Consumption and Production), and SDG
Francesco Parisi, Luciana Randazzo, Davide Settembre Blundo, Isabella Ganci, Silvestro Antonio Ruffolo, Mauro Francesco La Russa   +5 more
wiley   +1 more source

Study on the characteristics of rubidium and cesium carrier minerals in the beneficiation process of lithium-bearing clay

Results in Engineering
Rubidium (Rb) and cesium (Cs), as rare alkali metals, play a critical role in high-tech industries. However, their efficient extraction from associated mineral resources is challenging, especially in lithium-bearing clays due to fine-grained ...
Keqiang Chen, Guichun He, Xinyang Yu, Mingming Yu, Zhiqiang Huang, Song Zou, Jie Min, Rushuang Shu   +7 more
doaj   +1 more source

The impact of secondary mineral formation on Na-K-geothermometer readings: a case study for the Valley of Geysers hydrothermal system (Kronotsky State Nature Biosphere Reserve, Kamchatka)

Записки Горного института, 2023
The temperature in the Valley of Geysers (Kamchatka) geothermal reservoir calculated using the feldspar Na-K-geothermometer has been steadily increasing over the past 10 years on average from 165 to 235 °C, which is close to the temperature values of a ...
Anastasia V. Sergeeva, Alexey V. Kiryukhin, Olga O. Usacheva, Tatiana V. Rychkova, Elena V. Kartasheva, Mariya A. Nazarova, Anna A. Kuzmina   +6 more
doaj  

Nanoscopic feldspar islands on K-feldspar microcline (001)

Physical Chemistry Chemical Physics
High-resolution atomic force microscopy on microcline (001) reveals nanoscopic islands, which have the same atomic structure as the terrace and are stable in contact with water. The islands were identified as an intrinsic feature of the surface.
Tobias Dickbreder, Franziska Sabath, Florian Schneider, Uwe Güth, Ralf Bechstein, Angelika Kühnle   +5 more
openaire   +3 more sources