Results 91 to 100 of about 10,713 (180)

Calcium and Multi‐Isotope Constraints on Cation Exchange in Groundwater

Water Resources Research, Volume 62, Issue 6, June 2026.
Abstract Cation exchange is one of the most important processes in water‐rock interaction in the presence of clay minerals, with a common Ca‐Mg‐Na exchange system. However, systematic verification of Ca isotopes for tracing cation exchange in natural environments is lacking due to overlapping factors, such as dissolution‐precipitation of Ca‐minerals ...
Tianming Huang, Yin Long, Zhenbin Li, Lanping Feng, Yajing Zhao, Yiman Li, Wenjing Liu, Zhifang Xu, Shengwen Qi, Zhonghe Pang   +9 more
wiley   +1 more source

Late Holocene mud sedimentation and diagenesis in the Firth of Thames: Bentonites in the making

, 2013
Late Holocene mud sedimentation in the southern Firth of Thames has been described from analysis of a number of shallow marine sediment cores. Three distinct lithofacies are distinguished on the basis of sediment texture and mineralogy.
Naish, Timothy R.
core  

Enrichment of Smectite in the REY‐Rich Mud of the Clarion‐Clipperton Fracture Zone in the Eastern Pacific and Its Geological Significance

Geochemistry, Geophysics, Geosystems
REY‐rich mud, consisting of deep‐sea sediments with high concentrations of rare‐earth elements and yttrium (REY), holds significant economic potential.
Bo Xiang, Yanhui Dong, Xibin Han, Xiaohu Li, Yizhuo Wang, Weiyan Zhang, Fengyou Chu   +6 more
doaj   +1 more source

Laurasian Seaway History During the Early Jurassic From Quantitative Mineralogy and Detrital Zircon Dating

Paleoceanography and Paleoclimatology, Volume 41, Issue 6, June 2026.
Abstract The Laurasian Seaway comprises a N‐S oriented trans‐Pangaean corridor linking Tethys to the Boreal Sea during the Jurassic, and direction of water flow has been the subject of considerable debate. The Llanbedr (Mochras Farm) borehole, Cardigan Bay Basin, Wales, is a uniquely informative record that comprises an expanded deep‐marine silty ...
M. Jiang, S. P. Hesselbo, G. Pieńkowski, E. Krzemińska, J. B. Riding, A. Uchman, D. Salata, C. V. Ullmann   +7 more
wiley   +1 more source

Photocatalytic Disinfection of Bacteria by Sodium Light with Smectite Catalysts

, 2006
In this study, modifications of Wyoming smectite clay minerals are conducted using four types of metallic cations that cover the surface with Ag+, Zn2+, Ti4+ and Ag+/Zn2+ to form smectite catalysts and destroy bacteria.
Chiu-Jung Liao, Shu-Lung Kuo
core   +1 more source

Potassium Fixation and its Relationship with Physico-Chemical Properties and Clay Minerals in the Calcareous Soils of Kakan Plain, Kohgilouye & Boyerahmad Province

علوم آب و خاک, 2018
Potassium fixation is one of the most important factors influencing the availability of this ion for plants. This research was carried out to evaluate the relationship between potassium (K) fixation with some physical and chemical characteristics of ...
S. Shakeri
doaj  

Re-evaluating the evidence of aflatoxin B1 intercalation into smectite interlayer: a review based on basal spacing data

Sains Tanah: Journal of Soil Science and Agroclimatology
The bonding mechanism of aflatoxin B1 (AfB1) onto smectite in the batch adsorption test remains a subject of ongoing debate. One key aspect under contention is whether the interlayer of smectite is accessible to the AfB1 molecule.
Widyawanto Prastistho, Cintya Nurul Apsari, Niar Gusnaniar, Wawan Budianta, Michael Angelo B. Promentilla, Setyowati Triastuti Utami   +5 more
doaj   +1 more source

Low temperatures and high water/rock ratios in asteroid (101955) Bennu's history based on X‐ray powder diffraction of returned samples

Meteoritics &Planetary Science, Volume 61, Issue 6, Page 1077-1094, June 2026.
Abstract Samples returned by NASA's OSIRIS‐REx mission from the carbonaceous asteroid (101955) Bennu hold clues about conditions in the early solar system and the formation of planetary bodies. Initial investigation of Bennu samples found that they are rich in phyllosilicates and other secondary minerals formed during aqueous alteration of a larger ...
A. J. King, P. F. Schofield, J. Najorka, H. C. Bates, S. S. Russell, T. J. McCoy, T. J. Zega, H. C. Connolly Jr, D. S. Lauretta   +8 more
wiley   +1 more source

Hydrothermal synthesis of smectite from dickite

, 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, Ryu, Kyoung-Won, Jang, Young-Nam, Choi, Sang-Hoon, Bae, In-Kook   +4 more
core   +1 more source

Experimental study of the electrokinetic behaviour of kaolinite–smectite mixtures

, 2017
The evolution of the behaviour of kaolinite–smectite mixtures was studied using mechanical and electrokinetic tests. Oedometric tests showed that the compression index of the mixtures increases with increasing smectite percentage and that the curves ...
M. Trabelsi Ayadi, M. Hattab, H. Souli, M. Ben Salah, P. Dubujet   +4 more
core   +2 more sources