Results 271 to 280 of about 264,999 (349)

Coupled plagioclase dissolution and K‐feldspar overgrowth precipitation preserve anomalously high permeability in deeply buried sandstones

Sedimentology, EarlyView.
ABSTRACT This study investigated the formation mechanism responsible for anomalously high permeability (AHP) observed in the Eocene sandstones at depths from 3824 to 3832 m in the Huizhou Sag, Pearl River Mouth Basin, China, using helium porosity and permeability measurements, thin section, scanning electron microscopy, electron probe X‐ray ...
Changgui Xu, Huan Li, Wei Wang, Yangdong Gao, Guangrong Peng, Lin Ding, Eric O. Ansah, Pei Liu, Xiaoyan Li, Saju Menacherry, Hongtao Zhu, Xianghua Yang, Zhiwei Zeng   +12 more
wiley   +1 more source

Geochemical and remote sensing insights into the hydrothermal origin of Banded Iron Formations at the Fatira Site, Northern Egyptian Nubian Shield. [PDF]

Sci Rep
Saber EA, Abd El-Wahed MA, Shalaby OR, El-Sheikh AA, Attia M.   +4 more
europepmc   +1 more source

Impact of CO2 -Induced Geochemical Alteration on The Mechanical Integrity of Reservoir and Caprock in Saline Aquifers

Citra Fitria, Novia Rita, Ayyi Husbani
openalex   +2 more sources

Early development of anoxia prior to the main euxinic phase of the Jenkyns Event on the margin of the Western Tethys (Sachrang Basin, Eastern Alps)

Sedimentology, EarlyView.
ABSTRACT Although the global expansion of oxygen‐depleted marine environments during the Early Toarcian Jenkyns Event (or Toarcian Oceanic Anoxic Event) is primarily inferred from successions in the NW European epicontinental basins, the timing of the expansion of anoxia in Tethyan basins, where hydrography potentially played a minor role, is poorly ...
Tamás Müller, Stefan Neumeister, Jan Schlögl, Emanuela Mattioli, Hans‐Jürgen Gawlick, Thomas J. Algeo, Adam Tomašových   +6 more
wiley   +1 more source

Ecological risk assessment of rare earth elements in agricultural soils adjacent to an abandoned coal gangue pile in Chongqing, Southwest China. [PDF]

Sci Rep
Zhang M, Peng L, Li H, Cheng L, Wang M.
europepmc   +1 more source

Utilization of Riau Peat-Derived Humic Acid Modified with Urea-Formaldehyde for Ni(II) Adsorption: A Geochemical Approach

Meidita Kemala Sari, Bambang Rusdiarso, Sri Hilma Siregar   +2 more
openalex   +2 more sources

Conditions and timing for the precipitation of early marine diagenetic dolomite in the Triassic Dolomia Principale (northern Italy)

Sedimentology, EarlyView.
ABSTRACT Thermodynamic constraints and empirical evidence often suggest that fabric‐retentive replacement dolomites are stable carbonate minerals that preserve ancient seawater properties. This study evaluates this hypothesis by examining the Upper Triassic Dolomia Principale in Northern Italy.
Vivien Folliot, Giovanna Della Porta, Mathias Mueller, Fabrizio Berra, Benjamin F. Walter, Aratz Beranoaguirre, Sylvia Riechelmann, Oskar Schramm, Adrian Immenhauser   +8 more
wiley   +1 more source

Environmental filtering shapes biosynthetic potential and resistome of antarctic microbiomes. [PDF]

World J Microbiol Biotechnol
Medeiros WB, Hidalgo-Martinez KJ, Penna DDPS, Oliveira VM.   +3 more
europepmc   +1 more source

Siliceous sponges or seawater as a silicon source? Tracing silicon burial pathways of the Upper Cretaceous opal‐CT deposits using δ30Si and δ7Li

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, Ewa Świerczewska‐Gładysz, Marek Szczerba, Tomáš Magna, Szymon Kowalik Filipowicz   +4 more
wiley   +1 more source

Metagenomic insights into the taxonomic and metabolic diversity of the microbiome of Lake Karum in the Danakil Depression, Ethiopia. [PDF]

Environ Microbiome
Macey MC, Ilieva V, Stephens BP, Tatton B, Balcha E, Schwenzer SP, McGenity TJ, Miruts H, Gomez F, Cavalazzi B, Olsson-Francis K.   +10 more
europepmc   +1 more source