Results 101 to 110 of about 35,817 (223)

Negative Frictional Healing in Icelandic Geothermal (IDDP‐2) Core Samples: Potential Implications for Detachment‐Fault Mechanics

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 4, April 2026.
Abstract Detachment faults in mid‐ocean ridge settings accommodate tectonic extension. These faults are potentially weakened by alteration through phyllosilicate‐ and amphibole‐mineral formation. Seven core samples taken from the Krafla and Reykjanes geothermal fields in Iceland allow for the study of the effect of mineral alteration on the frictional ...
Barnaby Fryer, Florian Jermann, Patricia Patrier, Bruno Lanson, Stanislav Jelavic, Simon Guérin‐Marthe, Gabriel Meyer, Fabrice Barou, Marie Violay   +8 more
wiley   +1 more source

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

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

Mineralogical and physico–chemical properties of bentonites from the Jastrabá Formation (Kremnické vrchy Mts., Western Carpathians)

Geologica Carpathica, 2019
In the past years an increasing demand for bentonites resulted in the opening of new bentonite deposits in the Jastrabá Formation. The shortage of information, in particular analytical data, on the bentonites from the newly opened Jastrabá Fm.
Osacký Marek, Binčík Tomáš, Paľo Tomáš, Uhlík Peter, Madejová Jana, Czímerová Adriana   +5 more
doaj   +1 more source

Structure of the North‐Central Chile Subduction Zone From Local Earthquake Tomography

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 4, April 2026.
Abstract The fluid cycle in subduction zones prescribes large parts of its structure and seismogenic behavior. Background seismicity inside the downgoing slab is linked to fluid release from dehydration reactions, whereas fluid overpressure along the plate interface can alter interplate coupling, megathrust earthquakes, and the presence or absence of ...
Nicolás Hernández‐Soto, Christian Sippl, Matthew Miller, Dietrich Lange, Frederik Tilmann, Diego González‐Vidal, Juan Carlos Baez, Anne Socquet, Marcos Moreno   +8 more
wiley   +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  

Engineering geology of British rocks and soils : Lias Group [PDF]

, 2012
The report begins with an introduction and a detailed modern assessment of the geology of the Lias Group in terms of both stratigraphy and lithology. The modern lithostratigraphy is placed in the context of the old, and sometimes more familiar, usage ...
Barron, M., Entwisle, D.C., Hobbs, P.R.N., Jones, L.D., Kemp, S., Meakin, J.L., Northmore, K.J., Self, S., Sumbler, M.G.   +8 more
core  

The Effect of Temperature and Physical State of Water on the Frictional Properties of Chlorite‐Altered Basaltic Gouges (Krafla Geothermal Field, Iceland)

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 4, April 2026.
Abstract Changes in the physical state of water may alter fault frictional properties in high‐temperature geothermal systems, yet they have been little studied. Here, we perform slide‐hold‐slide experiments to examine the frictional properties (frictional strength μss and frictional healing Δμ) of chlorite‐altered basalt from Krafla Geothermal Field ...
W.‐H. Wu, W. Feng, R. Gomila, T. Tesei, A. K. Mortensen, G. Di Toro   +5 more
wiley   +1 more source

Chemical Heterogeneities along the South Atlantic Mid-Ocean-Ridge (5-11°S): Shallow or Deep Recycling of Ocean Crust? [PDF]

, 2011
Between 5° and 11°S, the Mid-Atlantic Ridge displays anomalous crustal thickness and geochemical compositions, thought to be related to either small scale upper mantle heterogeneities or a weak, diffuse mantle plume.
Garbe-Schönberg, Dieter, Haase, K., Hauff, Folkmar, Hoernle, Kaj, Kokfelt, Thomas, Werner, Reinhard   +5 more
core  

Microstructural Controls on Geothermal Reservoir Host Rock Responses to Elevated Pressures and Temperatures

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 4, April 2026.
Abstract Rock microstructure controls geothermal fluid flow within reservoirs hosted in active volcanic environments and as such it is necessary to constrain the microstructural evolution of rocks at elevated pressure and temperature conditions. Despite Andean geothermal systems hosting numerous high enthalpy geothermal plays, there remains a paucity ...
V. Mura, J. Browning, G. Arancibia, D. Healy, N. Farrell, N. Bigaroni, C. Pineda, D. Morata, J. Mecklenburgh   +8 more
wiley   +1 more source