Results 71 to 80 of about 3,253 (216)

Mechanisms of near‐normal sea water dolomitisation: Mesohaline‐reflux or syn‐depositional?

open access: yesThe Depositional Record, Volume 12, Issue 1, February 2026.
This study investigates the dolomitisation of the Eocene Dammam Formation on the Arabian Plate using petrographic, mineralogical, geochemical and isotopic analyses. The findings reveal two distinct dolomite types, formed primarily through normal‐to‐mesohaline sea water dolomitisation, challenging previous models such as sabkha‐meteoric mixing.
Misbahu Abdullahi   +3 more
wiley   +1 more source

Macroscopic palygorskite from Lisbom Volcanic Complex [PDF]

open access: yes, 2006
The palygorskite of the Volcanic Complex near of Lisbom (Portugal) is particular both in the size of the fibres and in chemical composition. It appears as veins of very pure mineral.
Súarez Barrios, Mercedes   +1 more
core   +1 more source

Domed‐rim microbial polygons and their preservation potential

open access: yesThe Depositional Record, Volume 12, Issue 1, February 2026.
Microbially induced sedimentary structures (MISS) derive through interactions between minerals and microorganisms. We define a domed‐rim MISS, morphologically distinct from abiotic mud cracks and demonstrate its potential for long‐term preservation. These structures represent promising biosignatures in ancient environments on Earth and potentially Mars.
Franziska R. Blattmann   +11 more
wiley   +1 more source

Eu2O3-functionalized ZnO/palygorskite

open access: yesRSC Advances, 2013
Eu2O3-functionalized ZnO/palygorskite was synthesized in a two-step method, and was thoroughly characterized. Energy was transferred from Eu2O3 to ZnO, but not from ZnO to Eu2O3, in contrast to literature reports. The interaction between Eu2O3 and ZnO directly influenced the energy transfer process.
Xi He, Jing Ouyang, Huaming Yang
openaire   +1 more source

Determination of Total Acid in Palygorskite Chemically Modified by N-Butylamine Thermodesorption

open access: yesMaterials Research, 2002
The acid properties of palygorskite clay (R1) were studied using n-butylamine as probe molecule. A comparison was made of these properties in palygorskite clay (R1), in an acidified palygorskite (R2) and in acid palygorskite loaded with 2% of lanthanum ...
Ruiz Juan A.C.   +3 more
doaj  

Engineering Crystalline Structure of In2O3 for Enhanced Electroreduction of CO2 to Formate

open access: yesCarbon Neutralization, Volume 5, Issue 1, January 2026.
A series of In2O3 catalysts with unique crystallographic structures (h‐In2O3, c‐In2O3, and h/c‐In2O3) is methodically obtained for electroreduction of CO2 to formate. The h‐In2O3 catalyst demonstrates a higher Faradaic efficiency of formate and current density than c‐In2O3 and h/c‐In2O3.
Yunqi Miao   +11 more
wiley   +1 more source

Sepiolite-palygorskite: A continuous polysomatic series

open access: yes, 2013
Received 21 March 2013 / Revised 28 August 2013 / Published 01 October 2013. © Copyright 2014 Elsevier B.V., All rights reserved.A compositional gap between sepiolite and palygorskite has long been accepted even though they have similar structures, but ...
Súarez Barrios, Mercedes   +1 more
core   +1 more source

Adsorption of terpenes compounds onto palygorskite

open access: yes, 2016
The present work aimed to study the processes of the synthesis insecticidal formulation. The active compounds of essential oil of eucalyptus globulus were fixed in the palygorskite by adsorption process. Two samples types of palygorskites were used; raw
GHRAB, Sana   +5 more
core   +1 more source

Influence of a Weak Pulsed Electromagnetic Field on the Atomic Structure of Natural Aluminosilicates Clinoptilolite, Montmorillonite and Palygorskit

open access: yesКонденсированные среды и межфазные границы, 2020
Natural and artifi cial aluminosilicates are relevant research objects due to their wide using in medicine, food and chemical industries, and in agriculture.
Larisa I. Belchinskaya   +5 more
doaj   +1 more source

Functionalized Palygorskite as a Delivery Platforms for Bioactive Asymmetric Beta-Diketone Dyes

open access: yesCrystals
Natural clay minerals are among the most versatile materials used in the biomedical field. Palygorskite has found various applications in this field, from the treatment of diarrheal diseases in the past to materials with antibacterial properties and ...
Florentina Monica Raduly   +6 more
doaj   +1 more source

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