Results 81 to 90 of about 18,367 (247)
Boreas, EarlyView.Chemical weathering plays a pivotal role in the Earth's surface material cycle and global climate regulation. It not only facilitates the reconstruction of palaeoclimate characteristics but also provides essential insights into Earth's evolutionary history.
Zhenyu Wei +9 more
wiley +1 more source
Geophysical Research Letters, 2023 The frontal part of the Japan Trench plate‐boundary fault is enriched in low‐strength smectite, and this material characteristic is thought to be a factor for the large fault slip during the 2011 Mw 9.0 Tohoku‐oki earthquake.
Keisuke Nakamoto +2 more
doaj +1 more source
, 2015 To understand clay mineral transformations in hydromorphic conditions in the red earth sediments in Xuancheng, south China, clay mineralogy was investigated using X‑ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM).
Wang, C. +4 more
core +1 more source
Journal of Petroleum Geology, EarlyView.ABSTRACT The diagenetic albitization of plagioclase and K‐feldspar grains is a transformative process that significantly alters sandstone's detrital composition and formation water chemistry, impacting reservoir quality. In this study, Eocene turbidite sandstones from the offshore Espírito Santo Basin, Brazil, were investigated to elucidate the role of
Eveline E. Zambonato +2 more
wiley +1 more source
Tikrit Journal of Pure Science, 2018 Clay minerals investigation is conducted using X-ray diffraction and scanning electron microscopy from the upper Cretaceous Shiranish Formation and lower Tertiary Kolosh Formation at two sections in Dohuk and Shaqlawa, northern Iraq.
Mohammed A. Al-Hajj, Ali I. Al-Juboury
doaj +1 more source
Processes and Patterns of Dolomite Precipitation in Aptian Pre‐Salt Deposits of Santos Basin, Brazil
Journal of Petroleum Geology, EarlyView.ABSTRACT The Aptian pre‐salt lacustrine carbonates represent the most significant oil exploration target along the South Atlantic margin. Dolomitization of the Santos Basin Barra Velha Formation (BVF) is critical for reservoir quality, yet its origin, patterns, and evolution remain poorly understood.
J. T. F. Oste +3 more
wiley +1 more source
Xenoliths in meteorites: Insights into the dynamics of material exchange between asteroids
Meteoritics &Planetary Science, EarlyView.Abstract A minor fraction of meteorites contains xenoliths, that is, clasts that were formed on a different parent body than that of the host lithology. The occurrence of xenoliths is direct evidence for the exchange of material between asteroids, including exchanges between asteroids from the carbonaceous (CC) and non‐carbonaceous (NC) reservoirs ...
J. Gattacceca +17 more
wiley +1 more source
SMECTITE ORGANOFILA PER L’ADSORBIMENTO DI MICOTOSSINE
, 2023 CAMPO DELL’INVENZIONE: L’invenzione concerne un processo per la preparazione di una smectite organofila e la smectite ottenibile dal processo stesso. La smectite dell’invenzione è in grado di adsorbire un largo spettro di micotossine strutturalmente ...
Donato Greco +4 more
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Sedimentology, EarlyView.ABSTRACT Classical models of formation of sedimentary siliceous rocks (flint, chert, opoka) commonly assume that the Cretaceous marine silicon (Si) cycle was primarily biologically controlled, broadly analogous to the modern ocean. In this framework, siliceous sponges are regarded as the principal source of dissolved silica (dSi) to sediment porewaters,
Agata Jurkowska +4 more
wiley +1 more source
Smectite-to-disordered kaolinite transitions as a function of age in the Nicoya Peninsula
, 2012 Chemical weathering and strong leaching in moist tropical environments tend to produce kaolinite-rich soils that are depleted in base cations characterized by low Si:Al ratios.
Franklin Hobbs (1705090)
core